A student is investigating the process of osmosis. She fills a medicine dropper with red
blood cells. Next, she creates a saline solution that is isotonic to the red blood cells.What will most likely happen to the red blood cells after they are placed in the
solution?
A. Water will exit the cells and cause them to shrink in size.
B. Water will enter the cells and cause them to grow in size.
C. Water will neither enter or exit the cells and their sizes will remain the same.
D. Water will enter and exit the cells at a steady rate and their sizes will remain
the same.

Answers

Answer 1

Answer: D. Water will enter and exit the cells at a steady rate and their sizes will remain the same.

Explanation:

Osmosis occurs when the salt content is NOT the same as our red blood cells: the salt or lack of it causes our RBCs to swell or shrink. Isotonic fluid has the same salt content as our RBCs. This is why it's important to watch salt intake in congestive heart failure.


Related Questions

why,we have more mitochondrial in our tissue muscles? -sorry for bad eng

Answers

Answer:

This is because mitochondria produce ATP during aerobic respiration and ATP is needed for muscle to contract. ... Muscles cells contain more mitochondria because they have to release large amount of energy quickly for movement.

Explanation:

Hope it's help

What does environmental quality include?

Answers

Answer:

Air and water purity or pollution, noise, access to open space, and the visual effects of buildings

Explanation:

Answer:

Explanation:

Environmental quality is a general term which can refer to: varied characteristics such as air and water purity or pollution, noise, access to open space, and the visual effects of buildings, and the potential effects which such characteristics may have on physical and mental health (caused by human activities

what process can lead to an individual having too many or two few chromosomes?

Answers

The process which can lead to an individual having too many or two few

chromosome is as a result of mutation which occurs during meiosis.

Meiosis is the type of cell division which occurs in reproduction and the

production of sex cells such as sperm and egg. This process results in the

production of four unique daughter cells.

The homologous chromosomes not being properly distributed in the

process could lead to such types of error.

Read more about Mutation here https://brainly.com/question/17031191

Check the statements below that provide evidence for the endosymbiosis theory

Answers

The DNA in the nucleus and mitochondria are the same.

This is not exactly true, although they are similar. This is not a correct option.

The following three are correct options:

Mitochondria and chloroplasts grow independently from the cell.

This is true, and supports the idea that they previously existed as their own organisms.

Prokaryotic cells, mitochondria, and chloroplasts are all the same size.

All three organisms/organelles are roughly the same size, which supports the idea that chloroplasts and mitochondria are descendants or prokaryotes.

Mitochondria and chloroplasts contain their own ribosomes.This is true as  well.

what hormone makes girls emotional on their period

Answers

Answer:

estrogen and progesterone

Explanation:

both are the major hormones for emotional and physical changes

A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient relative of a living organism. Which is more useful for dating the rock, and why?

Answers

Answer: Ancient Relative of a living organism

Explanation: Ancient Relative because by using the index fossil, you are also using the law of superposition. This law does not give you an accurate/specific date but instead the order they are in (i.e me saying i am older than my siblings compared to me saying i am 2 years older than them). By using an ancient relative of a living thing then we can see its phylogenic tree and measure around how old it is. Fossils also hold carbon and chemicals in there bones which allows us to use carbon dating. Carbon dating is an accurate way of measuring age.

When autotrophs produce more organic matter than they use in respiration tehre is anet increase in organic matter. That is called
A. Anaerobic repiration.
B. Diffussion.
C. Primary production.
D. Osmoregulation.

Answers

Answer: Primary Production

Explanation:

A net increase in organic matter seen when autotrophs produce more organic matter than they use for respiration, The hint was autotroph, an autotroph is always a primary producer, so there for it would be primary production.

C Primary Production affddggggfffgghhggfffvg

__________________________bacteria survive in the harsh environment of the stomach because it is able to neutralize the gastric acids and live in the mucosal stomach lining, safe from the host's immune responses.

Answers

Answer:

Archaebacteria



Explanation:

It is the only bacteria able to survive harsh environments.

(P.S. why did you delete my 1st response?)

What's a recycling plant and how are electromagnets used there?​

Answers

Answer:

A recycling plant is a factory for processing used or abandoned materials. The different types of recycling plants include those that process glass, metals, and paper back into raw materials. Other plants focus on items that require complicated recycling processes, such as concrete, electronic equipment and various plastics.

Electromagnets are used to lift and manoeuvre the crushed up ferrous materials or again to extract them from a pile of scrap. Ferrous materials are heavy and sharp but with the strength of the electromagnets they can be lifted and moved around with ease.

Hope that helped. x

Which spheres include the water cycle? (Select all that apply.)
hydrosphere
geosphere
biosphere
atmosphere

Answers

The answer Hydrosphere

All of them include the water cycle

Explain how the number of electrons in a energy level affects bond formation

Answers

Answer: The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. ... Nonmetals tend to attract additional valence electrons to form either ionic or covalent bonds.

What are macromolecules that contain carbon, hydrogen, oxygen, and nitrogen, needed by the body for growth and repair?

Answers

Answer:

protein

Explanation:

A macromolecule that contains carbon, hydrogen, oxygen, and nitrogen, which is used by the body for growth and repair. Protein Synthesis.

This is a two-part process that ends in the assembly of proteins at the ribosomes within cells.

If a cell that is about to divide has 22 chromosomes how many chromatids does it have? How many centromeres does it have?

Answers

44 chromatids 2 centromeres

44 chromatids 2 centromeres, If a cell that is about to divide has 22 chromosomes.

What are chromosomes?

In the synthesis phase, the number of chromatids doubles while the number of chromosomes remains constant. Although the number of chromatids is unaffected, anaphase doubles the number of chromosomes.

Depending on whether or not the DNA has replicated and when the sister chromatids split, the chromosome changes during the cell cycle.

Meiosis I and Meiosis II are the two division cycles that occur during a meiotic cell division. Since the genetic material duplicates during the S phase of meiosis I, there will be 2n chromosomes during metaphase I.

Therefore, if a cell that is about to divide has 22 chromosomes it have 44 chromatids and 2 centromeres.

Learn more about chromosomes, here:

https://brainly.com/question/14301907

#SPJ2

which neurons receive a signal first? (information about the environment like heat or pain)

Answers

Answer:

Dendrites. The first two neuronal functions, receiving and processing incoming information, generally take place in the dendrites and cell body.

if a man with type ab blood marries a woman with type o blood, what blood types would you expect in their children

Answers

Answer: the child could be  A or B  blood type

what is the main product or purpose of photosynthesis?

Answers

Answer:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

Hope that helps. x

5. What would happen if all of the bird types in this activity flew to an island where no birds had
been before and the only food available was rice? Which birds would be most successful? Which
birds would be least successful?

Answers

Answer:

the birds would either have two choices. they can eithe starve or they could adapt and eat the rice. they eventually would adapt if they wanted to stay alive and thrive or they would simply become extinct

Explanation:

If all of the bird types in this activity flew to an island where no birds had been before and the only food available was rice then they either starve or adapt and eat the rice.

What is adaptation?

An adaptation can be defined as the heritable behavioral, morphological, or physiological trait which has evolved through the process of natural selection of a species, and maintains or increases the fitness of an organism of a species under a given set of environmental conditions and time.

In this activity, if all of the bird types flew to an island where no birds had been before and the only food available was rice then they either starve or they could adapt and eat the rice. However, they eventually would adapt if they wanted to stay alive on that island and thrive or they would simply become extinct.

Learn more about Adaptation here:

https://brainly.com/question/29768035?

#SPJ2

A disease-causing bacteria successfully enters your body, making it past the first and second lines of defense. Which barrier will then act on the bacteria? chemical physical biological electrical.

Answers

Answer:

The correct answer is biological.

Explanation:

When any pathogen invades the body, it has to pass several lines of defence. The first barrier is the skin and mucous membrane which is a physical and chemical barrier. The second line of defence is the non-specific response by macrophages, neutrophils and interferon. After crossing these two barriers the third line of defence comes into action in which, the B- cells and T-cells act specifically on the pathogen and destroy it.

Answer:

[tex]\huge\boxed{\sf Biological}[/tex]

Explanation:

When first and second line of defense is passed by the bacteria, the third line of defense will come into action which is a biological barrier which includes antigen which are anti-bodies generating substances.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

A peacock spreading its tail to attract a mate is sending a(n) _____ stimulus. learned innate external internal

Answers

Answer:

External

Explanation:

The Tail is spreading outside of the peacock  (Externally)

Which neurons are responsible for
passing the collected information to
other neurons or can respond on their
own?
A. interneurons
B. motor neurons
C. sensory neurons
D. glial neurons

Answers

Answer:

A. interneurons

Explanation:

Say my day is good if u like girls and if your single

Answers

Answer:

Have a good and Nice day ahead !!!

Explanation:

Have a great day ahead........

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