Answers
2- They can also be used for drug testing, as the cells can differentiate into any almost type of cell, so they can be used as the subject of testing for many different medications.
Some issues are that there may be risks, such as the transfer of viral infections. Some people also have ethical issues, especially since most stem cells are taken from embryonic stem cells, from embryos, so some believe that it is ‘killing’ an embryo, who they consider to be a person.
Related Questions
A student conducted an experiment where she added HCI (a very strong acid) to 4 test tubes containing unknown solutions. She tested the pH of each of the solutions before and after the addition of the acid using pH paper. The color of the pH paper before
and after adding acid to the unknown solutions can be seen in the table below. For reference: pH 2 = red; pH 4 = orange; pH 7 =
yellow; pH 9 = green; pH 14 = purple.
Answers
The test tube that can be seen to contain an artificial cytoplasm is test tube 3
Artificial cytoplasmGiven that;
Test Tube 1 | Orange | Red
Test Tube 2 | Yellow | Orange
Test Tube 3 | Yellow | Yellow
Test Tube 4 | Green | Green
The fact that the pH of the mixture remained steady after the addition of HCl shows that the unidentified solution in Test Tube 3 buffered the addition of the acid and kept it there. This behavior is in line with the existence of synthetic cytoplasm, which is intended to keep the pH in check so as to mimic the natural cellular environment.
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FOR THIS QUESTION YOU MUST INCLUDE THE FOLLOWING:
- Claim/ statement
- Evidence (data observations from science facts or diagram models)
- Reasoning (connect the evidence to the claim and diss use the relationship between the two)
There is a small amount of NAD+ made by a cell. If oxygen is not present, pyruvate becomes the final electron acceptor thus allowing for the recycling of NAD+.
QUESTION: EXPLAIN how using pyruvate as the final electron acceptor in an anaerobic process allows for the recycling of NAD+.
Answers
Claim: Using pyruvate as the final electron acceptor in an anaerobic process allows for the recycling of NAD+.
What are the evidence and reasoning?Evidence: During anaerobic respiration, the breakdown of glucose begins with glycolysis. In this process, glucose is broken down into two pyruvate molecules, which also generate ATP and NADH.
Under anaerobic conditions, pyruvate becomes the final electron acceptor instead of oxygen. Pyruvate is then converted to lactate or ethanol and CO2, which regenerates NAD+ from NADH.
Reasoning: In the absence of oxygen, cells rely on anaerobic respiration to generate energy. During glycolysis, glucose is broken down into pyruvate, which generates a net of two ATP molecules and two NADH molecules. In order for glycolysis to continue, NADH must be recycled back to NAD+.
However, without oxygen, the electron transport chain cannot occur, and the NADH cannot be oxidized. Instead, pyruvate acts as an alternative electron acceptor, which is converted to lactate or ethanol and CO2. This reaction allows NADH to transfer its electrons to pyruvate, regenerating NAD+ in the process. As a result, glycolysis can continue to generate ATP, and the cell can survive under anaerobic conditions.
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làm sao bảo quản để bánh không lên
Answers
Answer:
which language is this ?
Mast cells play what key role in initiating an immune response?Question options:A) Clotting woundsB) Creating antigensC) Releasing histaminesD) Creating antibodies
Answers
The correct answer is C Histamines. Mast cells release several chemicals that allow the immune system to perform a synchronized response against pathogens.
Different __________ working together to perform a particular job are called __________. Fill in the blank.
Answers
Answer:
Different tissue working together to perform a particular job are called organs
Explanation:
In a healthy, functioning ecosystem, chemicals and nutrients are constantly recycled and reused
True or false
Answers
what organelle is similar to the muscular system
Answers
Predict what will happen to the concentration of pyruvate, NADH and H+ when the Krebs cycle is stopped by arsenic
Answers
Answer: Pyruvate would increase, NADH would decrease, and intermembrane H+ would decrease as well.
Explanation:
Glycolysis would raise pyruvate, but the Krebs Cycle would not produce NADH, decreasing it. No protons (H+) will be pushed into the intermembrane gap, lowering its H+ content and raising its pH.
What is Kreb's cycle?The tricarboxylic acid (TCA) cycle, commonly referred to as the Krebs cycle or the citric acid cycle, is the primary route that cells use in order to acquire energy and is an essential component of aerobic respiration. The cycle transforms the oxidative potential of acetyl coenzyme A (acetyl CoA) into the reductive potential of nicotinamide adenine dinucleotide (NADH).
The synthesis of ATP via the Krebs cycle is disrupted when arsenic is present because it prevents pyruvate from being converted into acetyl coenzyme A (acetyl-CoA). In addition to the effects described above, arsenic also prevents glucose uptake at the cellular level, as well as gluconeogenesis, the oxidation of fatty acids, and additional acetyl-CoA formation.
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Which plate does not appear in both hemispheres?
Indo-Australian
African
Pacific
Eurasian
Answers
Answer:
Indo-Australian
Explanation:
Take a walk outside and make observations. Describe one of each type of interaction between spheres that you observe. An example of the biosphere interacting with the geosphere is an animal burrow.
Answers
Answer:
1. interaction between hydrosphere and atmosphere.
Cloud is formed from water vapors evaporated by lake water (hydrosphere) in atmosphere
2. interaction between atmosphere and geosphere.
The atmosphere arranges the geosphere with the energy required for the breaking of rocks and different types of erosion.
3. interaction between hydrosphere and geosphere.
For electricity purposes, water in the lake (hydrosphere) flows and stored into the cliff walls behind the dam, forming groundwater after moving through the turbine (geosphere).
4. interaction between the atmosphere and the biosphere.
In the nitrogen cycle, atmospheric nitrogen is fixed to compounds of nitrogen in plants with help of nitrogen fixing microbes (biosphere).
which of the following decribes the importance of the citric acid cycle as a central pathway of metabolism?
Answers
The statement that best describes the importance of the citric acid cycle as a central pathway of metabolism is: D. It allows recovery of energy from several metabolic fuels that are broken down to acetyl-CoA.
In the field of biology, the citric acid cycle can be described as an important metabolic reaction in which several molecules like proteins, fats, etc are converted into acetyl-CoA. Then, this acetyl-CoA is used in the electron transport chain to produce ATP from it.
Hence, the citric acid cycle is important in metabolism because it allows several metabolic fuels such as proteins, carbohydrates, and fats to be converted into a compound referred to as acetyl-CoA which serves as an important molecule to be converted into the main energy molecule i.e ATP. The reactions of the citric acid cycle take place inside the mitochondria.
Although a part of your question is missing, you might be referring to this question:
Which of the following describes the importance of the citric acid cycle as a central pathway of metabolism?
A. It allows recovery of energy from carbohydrates only.
B. It allows recovery of energy from fatty acids only.
C. It allows recovery of energy from amino acids only.
D. It allows recovery of energy from several metabolic fuels that are broken down to acetyl-CoA.
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What terms means that molecules are evenly or equally distributed on both sides of a cell membrane?
Answers
Answer:
the cell wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
it coversssssssssssssssssssss the cell and protects it
If an individual had an excess of ADH
in their bloodstream, they retain more
water. What do you think would
happen to the urine because of it?
Would it have more water or less
water in it? Would it be bright yellow
or pale yellow? Explain your
reasoning.
Answers
If the organism secretes an excess of ADH, urine would be less diluted and showing a bright yellow color due to salts concentration. Options: less water in it and bright yellow.
What is the ADH hormone?
Anti Diuretic Hormone is a molecule that helps kidneys to control water loss through urine.
The ADH, also known as vasopressin hormone, is released by changes in serum osmolarity or blood volume. Its function is to keep homeostasis and make kidneys conserve or keep water by concentrating urine and by reducing its volume. Through these actions, the antidiuretic hormone stimulates water reabsorption, according to the organism's needs.
When the organism secretes too much ADH, the body retains too much water, and blood volume increases.
In these cases, urine would have less water and would be bright yellow because there would be a higher concentration of salts and other waste elements.
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Question 2 of 10
You're a nurse in the emergency room of a hospital. Which of the following
patients should you prioritize first?
O A. Padma sprained her ankle.
B. Mary is having an asthma attack and cannot breathe.
C. Sonya was in a car accident and has a chipped tooth.
D. Ronald's back hurts after he fell off his bike.
SUBMIT
Answers
Answer:
Mary, who is having an asthma attack and cannot breathe, should be prioritized first as she is in immediate danger and requires urgent medical attention.
Explanation:
Why is the common cold virus difficult to cure in humans?
a) It possesses a viral genome that mutates very quickly.
b) It is a spherical-shaped virus with many protein receptors.
c) It attacks white blood cells that fight off foreign bodies.
d) It is caused by a special type of virus called a retrovirus.
Answers
Answer:
The correct answer is - option A.
Explanation:
The common cold virus is a virus that includes various type of species and strains that attacks and sticks to the cells of the nasal cavity and back of the throat. These viruses include coxsackieviruses, rhinoviruses, adenoviruses, and coronaviruses.
From the throat, they quickly affect the upper respiratory tract. Medicines can help relieve the symptoms of the cold. However, there is no cure as they mutate their genome very quickly and the period it takes to develop producing vaccine it no longer uses as its genome changed.
Hi! Thanks for asking your question here on Brainly!
Answer:
The common cold virus is difficult to cure in humans because the virus possesses a viral genome in which mutates very quickly, making it hard to put a stop to it in an early state.
Hope this helped :D Happy holidays!
All of the following are reasons it might be beneficial for prokaryotes to take up foreign DNA EXCEPT that Question 77 options: a) DNA could be used for food by bacteria. b) the uptake of foreign DNA would result in potentially beneficial recombinants. c) the uptake of foreign DNA might allow a cell to repair damaged chromosomes. d) the uptake of foreign DNA could allow completely new genes with new functions to enter the recipient cell. e) the uptake of foreign DNA could result in the breakage of the plasma membrane of the recipient cell.
Answers
Answer:
dna could be used for food by bacteria
Explanation:
not a beneficial reason
All of the following reasons are beneficial for prokaryotes to take up foreign DNA except the use of DNA as food by bacteria. Thus, the correct option is A.
What is DNA uptake?DNA uptake is defined as the conversion of exogenous, DNase-sensitive DNA into a DNase-protected state inside a bacteria. In gram-negative bacteria, this DNA uptake can be achieved by crossing the outer membrane. By contrast, in gram-positive bacteria, DNA uptake is similar to gram-negative bacteria with passage across the cytoplasmic membrane.
The uptake of DNA in bacteria is beneficial as it helps in the production of recombinants that can be used for various purposes. The DNA uptake can be used for the repairing of damaged DNA and chromosomes in patients of genetic disorders.
New genes with different functions can be introduced in organisms like bacteria.
Therefore, the correct option is A.
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"Pitcher plants are carnivorous." Is it true or false?
Answers
Yes, it is true that pitcher plants are carnivorous. Pitcher plants are a type of carnivorous plant that have evolved to obtain essential nutrients from insects and other small organisms.
The answer in True.
These plants typically grow in nutrient-poor soil conditions and have adapted to capture and digest insects as a way to supplement their nutrient intake.
The main feature of pitcher plants is their modified leaves, which form a pitcher-like structure. This structure is filled with a liquid that contains enzymes and other substances that can break down the captured prey. The rim of the pitcher, called the peristome, is slippery, causing insects to fall into the trap. Once trapped, the insects are digested, and the nutrients are absorbed by the plant.
There are several types of pitcher plants, including the North American Sarracenia, the tropical Nepenthes, and the Cephalotus from Australia. Each species has unique adaptations and trapping mechanisms that help them capture different types of prey.
In summary, pitcher plants are indeed carnivorous, as they have adapted to obtain essential nutrients from insects and other small organisms. They do so through their unique pitcher-like structures, which are designed to trap and digest prey. This adaptation allows them to thrive in nutrient-poor soil conditions.
The answer in True.
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In a short paragraph relate the density of the bone to the activities and environment of each animals, both bird and cattle
Answers
Answer:
The density of a chicken’s leg bone will be less than a cow’s leg bone. The main reason for this is the size comparison between the animals, with the cow being noticeably bigger and more muscular. Cows are not meant to move quickly thus they have heavy bones with more density. Chickens on the other hand are noticeably smaller animals that are meant to be quicker and able to glide yet not fly, thus they have a low leg bone density to do this.
The density of the bone to the activities and environment of each animals, both bird and cattle is "Cows have hefty, more dense bones because they were not designed to move swiftly."
What is environment ?
The environment could be summed up as such effects of all the living as well as non-living things that have an impact on human life.
What is density?The relationship between such a substance's mass as well as the amount of space it occupies is known as its density.
Leg bones from chickens would be less dense than those from cows. The cow was visibly bigger and much more muscular than the other animals, which is the main cause of this. Cows have hefty, more dense bones because they were not designed to move swiftly. Compared to other animals, chickens are considerably smaller and are designed to move quickly and glide rather than fly; as a result, they have minimal bone density in their legs.
The density of the bone to the activities and environment of each animals, both bird and cattle is "Cows have hefty, more dense bones because they were not designed to move swiftly."
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what is the important of deamination process in mammals ?
Answers
Answer:
In situations of excess protein intake, deamination is used to break down amino acids for energy. The amine group is removed from the amino acid and converted to ammonia.
hope it helps
A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answers
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
How would an air mass that formed over the north pole differ from an air mass that formed over a warm
ocean?
Answers
An air mass that formed over the North Pole would differ from an air mass that formed over a warm ocean in several ways.
Air masses are large bodies of air with similar characteristics that form over a specific region of the Earth's surface and can travel long distances before encountering a different air mass that alters its characteristics. The characteristics of an air mass depend on the region over which it forms.
The air mass that forms over the North Pole would be cold and dry due to the absence of sunlight and the Arctic's high latitudes. Arctic air masses are characterized by a high pressure system that circulates air clockwise. This rotation traps cold air over the region and prevents it from mixing with the surrounding air masses.
The air mass that forms over a warm ocean would be warm and moist. The ocean surface warms the air above it, and the air acquires moisture through evaporation. The warm air then rises, causing low-pressure areas over the ocean and pulling in moisture-laden air from surrounding regions. This moist air mass travels over land, and its temperature decreases, causing it to lose its moisture content and form precipitation.
The moisture content in this air mass would be high, causing it to be humid. Air masses interact with each other and cause changes in weather patterns and climate. They also play a vital role in the Earth's energy balance and regulate temperature and precipitation patterns.
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Match the term with its description.AxonDendriteNerveNeuronNeurotransmitterFibers transmit impulses through the brain and spinal cord to muscles and organs.Chemicals released from axon terminals that transfer impulses from between nerve fibers.Short, branched extension of a nerve cell that receives and transmits impulses. Specialized cells that join to create nerves.Long, thread like part of a nerve cell that conducts impulses from cell to cell
Answers
Neurons, also called nerve cells, are specialized cells of the nervous systems that receive and transmit signals through the body.
These cells have small projections in their body called dendrites, that receive signals from other neurons and process the information. One nerve cell has many dendrites, these projections are usually branched and form what is called a "dendritic tree"
The signal travels through the nerve's body to the Axon. Neurons have only one axon that leaves the cell's body from the Axon's hillock and connects to other neurons or tissues through small bulbous structures called axon terminals.
The Axons of many neurons that innervate the same locations travel down the same route form a bundle called a nerve.
The signal transmission is performed through a chemical synapsis. The process occurs between the axon terminal of one neuron (presynaptic nerve cell) and the dendrite of the next one (postsynaptic nerve cell) if the communication is between neurons. A chemical substance called a neurotransmitter is released from the presynaptic neuron and it binds with receptors in the postsynaptic neuron which translates into a new impulse.
The matches are:
Axon → Long thread-like part of a nerve cell that conducts impulses from cell to cell.
Dendrite → Short branched extension of a nerve cell that receives and transmits impulses.
Nerve → Fibers transmit impulses through the brain and spinal cord to muscles and organs.
Neuron → Specialized cells that join to create nerves.
Neurotransmitter → Chemicals released from axon terminals that transfer impulses from between nerve fibers.
____ is known as the coping of dna
Answers
Answer:
Replication
Explanation:
The copying of DNA is called DNA replication. The steps of DNA replication are the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.
Hope this helped!
During photosynthesis, plants transform the energy in sunlight into chemical
energy by converting molecules of carbon dioxide and water into sugar and
oxygen molecules. What are two reasons scientists might use a model to
represent what happens during photosynthesis?
A. The molecules involved in photosynthesis are too small to see
with an optical microscope.
B. It is too dangerous to study the plants in which photosynthesis
occurs.
I c. Photosynthesis is too complex to be able to use experiments to
learn how it works.
D. The steps of photosynthesis occur too quickly to show each one
as it happens.
Answers
Answer:
A i am sorry if it is wrong
Explanation:
Choose all the answers that apply.
Science should be
based on opinion
subjective
free from bias
based on fact
objective
Answers
Answer: Based on fact, Free from bias, objective
Explanation:
Answer: C,D,E or 3,4,5
A unicellular protist that carries out the process of photosynthesis would be classified as a...
1) producer
2)saprophyte
3) predator of green algae
4) decomposers of inorganic compounds
Answers
Answer:
1) THIS WOULD BE CLASSIFIED AS A PRODUCER.
A unicellular protist that carries out the process of photosynthesis would be classified as a producer.
PRODUCERS:
A producer in an ecosystem is an organism that possess the ability to synthesize their own food. Producers make use of photosynthesis (light energy) or chemosynthesis (chemical compounds) to synthesize their energy source. The energy production that is initiated by producers is transferred in the ecosystem when they are fed on. Examples of producers are green plants, photosynthetic bacteria, algae etc. Therefore, a unicellular protist that carries out the process of photosynthesis would be classified as a producer.Learn more at: https://brainly.com/question/20310424?referrer=searchResults
Farmers have been planting crops that express an
insecticide gene, so that when pests consume these
crops, the pests are poisoned. Unfortunately, since
these plants were introduced in 1996, growing
numbers of insect pests have developed resistance
to the insecticide. The process that led to the insect
resistance can best be explained by
Answers
Answer:
Explanation:
el pepe y muchas gracias sigue lavando platos como la mujer que eres
wazaaaaa
The process that led to the insect resistance against the insecticide gene is called cross-resistance.
What is cross-resistance?Cross-resistance is a phenomenon in which an organism or cell becomes resistant to multiple substances that are structurally or functionally related. This can occur when exposure to one substance leads to the development of resistance that also provides some level of protection against other similar substances.
Cross-resistance can be a significant problem in the development of new drugs or treatments. It can limit the effectiveness of multiple options and make it more difficult to find effective treatment options for resistant organisms or cells.
Thus, the process that led to the insect resistance against the insecticide gene is called cross-resistance.
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Despite the rampant depletion of trees in the natural forest in Ghana,it is still worth using wood as the main construction.Disscuss
Answers
Answer:
Hope this helps!
Explanation:
Forest resources support livelihood of people in jurisdictions in which forest is located. However, the forest size is gradually depleting continuously. The lack of information about the specific agents and forces of forest depletion is worrying. This is due to the inter-generational and intra-generational equity notions that affect mankind. As such, there is the need to maintain such resources on a non-declining value basis so as to maintain human welfare over time. Thus, the objective of this study is to empirically examine the determinants of forest depletion in Ghana over the 1970-2012 period in Ghana. This study employs multiple regression concepts to examine the effects of the determinants on forest depletion. The findings of the study indicate that gold extraction for export, population growth and logging increase the rate of forest depletion for the study period. More significantly, population growth reflected in settlement expansion, agriculture purposes, increased use of fuel wood, etc have greater effect on forest loss in Ghana. This suggests that, protection of the forest is necessary and sufficient condition for economic growth. As a result of these, both government and policy-makers need to safeguard the forest estate, by increasing afforestation schemes and also using part of the returns from gold exports to regenerate the forest.
Answer:
The main cause of deforestation is agriculture (poorly planned infrastructure is ... In 2019, the tropics lost close to 30 soccer fields' worth of trees every single minute. ... of Texas could be lost to rampant deforestation, according to a WWF report. ... These fires not only alter the structure and composition of forests,
Explanation:
What are the properties of water? Answer in 2-4 sentences, including the words below:
Polar
Cohesion
Adhesion
Surface tension
Answers
The main properties of water are its high polarity, high specific heat, high heat of vaporization, low density as a solid, and attraction to other polar molecules, highly Cohesive, high adhesive power
These hydrogen bonds are the constantly breaking, with the new polarity, bonds being formed with the different water molecules; but at any given time in the sample of the liquid water, a large portion of the molecules are to be held together by such bonds. Water also has the high adhesion properties because of its polar nature. the Water travels throughout your body that carrying nutrients, oxygen, and the wastes to and from your cells and also through organs. Water keeps your body cool as part your body's the temperature regulating the system. Water cushions your joints, and they protects your tissues and the organs from the shock and damage.
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1 What does the codon sequence on the mRNA strand determine?
A The gene sequence of the DNA
B The amino acid sequence of the polypeptide
C The codon that is signaled
D The signaling sequence
2 What portion of the DNA is also known as a gene?
A The coding sections
B The non-coding sections
C The mRNA strand
D The polypeptide sequence
Answers
1. The correct answer is B.
2. The correct answer is A.
The codon sequence on the mRNA strand determines the amino acid sequence of the polypeptide.
The coding section is the portion of the DNA that is also known as a gene. Genes are the functional units of DNA that provide the instructions for making proteins. They are composed of coding cells, also known as exons, that contain the information needed to build the polypeptide, and non-coding sections, also known as introns, that do not.
The codon sequence on the mRNA strand is translated by the ribosome during protein synthesis. Each codon, which is a sequence of three nucleotides, corresponds to a specific amino acid. The ribosome reads the codon sequence on the mRNA strand and adds the corresponding amino acids to the growing polypeptide chain. This process is called translation.
In DNA, genetic information is encoded in the sequence of nucleotides, which are the building blocks of DNA. Genes are specific segments of DNA that contain the instructions for making a specific protein. These instructions are encoded in the sequence of nucleotides within the coding sections of the DNA, also known as exons. The non-coding sections, also known as introns, do not contain instructions for making proteins, but they play important roles in the regulation of gene expression.
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