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

when a cell is in anaphase what happens to the dna?

Answers

Answer:

During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.Explanation:

how do false killer whales help mankind and nature!!!!!???????

NEED TO KNOW VERY SOON PLESE ANSWER SOON AND FAST

Answers

Whales play an important role in the marine ecosystem where they help provide at least half of the oxygen you breathe, and they also improve climate change. Hope that helps.

4. Which of the following best describes the growth of the population in the graph?
a
The population is undergoing logistic growth
b. The population is undergoing exponential growth
The population has reached its carrying capacity
d. The populations is being affected by limiting factors
Population Size
U
C.
Time
RESOURCE:
ASAP

Answers

Answer:c

Explanation:

One division of a cell → two identical, diploid (2n) cells.
Diploid: _______ Cell with sets of chromosomes.​

Answers

Answer: Daughter Cell

Explanation: Not one hundred percent sure this is the answer because there’s no context but the phrase Daughter Cell is used to describe two newly created cells from mitosis.

What is a Objective Summary on Global Warming?

Answers

Answer:

Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

Explanation:

Answer:

The study, published last month in the journal Geophysical Research Letters, found that climate change is making summers hotter and longer, while shrinking the three other seasons. ... They found that over the nearly 60-year period, summers grew from an average of 78 to 95 days long

ocean acidification impacts are:
1.
2.
3.
4.

Answers

Explanation:

In the 200-plus years since the industrial revolution began,concentration of carbon dioxide in the atmosphere has increased due to human actions.During this time,the pH of surface ocean waters has fallen by 0.1 pH units.This might not sound like much,but the pH scale is logarithmic,so this change represents approximately a 30 percent increase in acidility.

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that's the answer of my book

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if you found a vertebrate skull in the woods and the teeth were sharp and scissor-like, what type of food would you expect this animal to eat?

Answers

Answer:

meat, or flesh.

Explanation:

sharp and scissor-like teeth are used to slice through bone and muscle, while flat-topped teeth are used for vegetables. this animal is a carnivore or an omnivore.

Sharp and scissor-like teeth are used to slice through bone and muscle, while flat-topped teeth are used for vegetables. This animal is a carnivore or an omnivore.

What are the characteristics of carnivores?

A carnivore, or meat-eater, is an animal or plant whose food and energy requirements derive from animal tissues whether through hunting or scavenging.

Big carnivores include lions, tigers, and wolves. Some birds such as hawks and eagles are also carnivores. Snakes are usually carnivores as well. Small carnivores include frogs, birds such as robins, and spiders.

A carnivore is an organism that mostly eats meat, or the flesh of animals. Sometimes carnivores are called predators. Organisms that carnivores hunt are called prey.

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A mineral is defined as a natural substance that is neither animal nor plant, has a
A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
B. solid substance or element that is essential to human nutrition.
C. naturally occurring, crystalline, inorganic solid that contains only one element.
D. naturally occurring inorganic solid consisting of chemical elements in specific proportions, whose atoms are arranged in a repeated internal pattern.

Answers

Answer:

the answer is A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.

Explanation:

which system is responsible for preventing pathogens from disturbing homeostasis?

Answers

Answer:

The immune system protects the host from pathogenic organisms (bacteria, viruses, fungi, parasites). To deal with this array of threats, the immune system has evolved to include a myriad of specialised cell types, communicating molecules and functional responses.

Explanation:

Transport in plants take place through a system of tube called

Answers

Answer:

Therefore this food is transported to other parts of the plant through a kind of tubes called phloem.

Explanation:

Which of the statements agrees with the base pairing rules in a DNA strands

Answers

Answer:

the offspring of two parents will have 50 percent of his or her gene's from their mother and the other 50 from their father and the gene's will determine what the child will have like the eye color and hair color shape of their nose and other things that are inherited

Explanation:

Is it possible for a primary consumer to be an omnivore or carnivore?

Answers

Answer:

yes is it

Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants).

Hope this helps!!

Explanation:

Itz Deepika Here to help ~ .

Note:- If you have any more questions then let me know !!

what is the cell wall function and factory part or worker?

Answers

Answer:

Major cell parts function just like the structures and people who work together in a factory. Cells have strong cell walls and a cytoskeleton to keep their shape; the walls are made of fiber for protection just like a factory building has sturdy walls for support.

The cell wall serves as a protective and structural layer surrounding plant, fungal, and bacterial cells. It provides rigidity, support, and defense against external pressures and pathogens.

In various species, the cell wall serves as a robust outer layer. Its primary component in plants is cellulose, which helps to preserve cell structure, limit excessive water absorption, and promote growth. Chitin is found in the cell wall of fungi, providing both structural integrity and protection.

Bacteria have a variety of cell wall compositions; peptidoglycan, for example, is an essential part of many bacterial cell walls. Along with other cellular components, this "factory-like" part of the cell performs its functions. It is comparable to a factory's base, supporting the cell's framework, and worker, guarding against threats and preserving the cell's overall operation.

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which macromolecule is the main component of cell membranes

Answers

Answer:

lipids

ion know

Answer:

Lipids

Explanation:

#7#9#10
PLEASEEE
Needed by tonight

Answers

Answer:

Explanation:75

We would expect cells found in the active muscles of animals to contain relatively large amounts of which cellular organelle? A) centrioles B) mitochondria Eliminate C) lysosome D) nuclei

Answers

Answer: B.) Mitochondria

Explanation:

PLEASE HELP WILL MAKE MOST BRAINLIEST IF POSSIBLE LOOK AT PICTURE

Answers

Answer:

CFC, water vaper, methane,  carbon dioxide

Explanation:

Question 8 of 10
The molecules that make up food contain energy. How does the human body
get energy from the food molecules?
A. By adding energy to the molecules
B. By breaking and reforming chemical bonds in the molecules
C. By using them to form ionic bonds
D. By combining the molecules together

Answers

Answer: B.) By breaking and reforming chemical bonds in the molecules.

Explanation:

Which of the following is NOT a human-caused reason that species go extinct?

a forest fire caused by lightning, which destroys a habitat

bringing in invasive species

cutting down a forest, which destroys a habitat

overhunting

Answers

A. A forest fire caused by lightning, which destroys a habitat
A !! forest fire caused by LIGHTNING, which destroys a habitat .. lightening isn’t from humans !

a sea anemone can only travel at an average speed of 1.7 millimeters/minute. how many millimeters will it ravel in 3.5 minutes

Answers

Answer:

I belive your answer is 5.95

Explanation:

Select ALL the correct arswers.
Which statements correctly describe mutations in gametes and mutations in somatic cells?
Mutations to somatic cells are only present in the type of cell in which the mutation occurred.
Mutations to gametes are more likely to be beneficial than mutations to somatic cells.
Mutations to somatic cells will be inherited by an organism's offspring.
Mutations to gametes can be passed on to an organism's offspring
O Mutations to gametes do not involve changes in the DNA.
Mutations to somatic cells are transferred to daughter cells.

Answers

Answer:mutations to gametes can be passed on to an organism's offspring and mutations to somatic cells are only present in the type of cell in which the mutation occurred.

Explanation:The mutation in the somatic cells is known as somatic mutations. As they do not take place in the cells, which give rise to gametes, thus, the mutation is not inherited to the next generation by the sexual means.  

On the other hand, the genetic mutations take place in the germline cells, that is, egg and sperm, because of this the mutations possesses the tendency to get passed on from one generation to another.  

Thus, mutations are only passed on to offspring when they take place in germ cell DNA. The other kind of cells, the somatic cells refers to the rest of the cells in the body and mutations, which takes place in these cells do not get inherited further to the offspring.  

Hence, the correct statements are

how does the mitochondria produce energy for the cell

Answers

Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell.

After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be
A used as a nutrient by plants
B fix by bacteria in the soil
C absorbed into the atmosphere by lightning

Answers

Question:-

After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be:-

A. used as a nutrient by plants

B. fix by bacteria in the soil

C. absorbed into the atmosphere by lightning

Answer:-

B. fix by bacteria in the soil

Explanation:-

These bacteria are known as nitrogen-fixing bacteria. These nitrogen-fixing bacteria convert nitrogen in the soil to ammonia. Ammonia can be taken up by plants.

3. What effect does hydrostatic equilibrium have on a solar system body?
It gives the body's orbit a circular shape.
It gives the body's orbit a clear path.
It gives the body a potato-like shape.
It gives the body a spherical shape.

Answers

Answer:

it's option d) It gives the body a spherical shape.

The effect of hydrostatic equilibrium on a solar system body is that It gives the body a spherical shape.

What is hydrostatic equilibrium?

Hydrostatic equilibrium describes liquid or fluid at rest.

A body of solar system such as Earth has a spherical shape which is not perfect. This spherical shape of Earth and other bodies of the solar system such as;

Mars, Venus, Jupiter, Uranus etc are caused by the hydrostatic equilibrium.

Thus, we can conclude that, the effect of hydrostatic equilibrium on a solar system body is that It gives the body a spherical shape.

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HELPPP
Which of these is not associated with expiration?
A. high pressure

B. relaxed diaphragm

C. increased volume

both B and C answers

Answers

Answer:

(A)

Explanation:

High pressure has nothing to do with expiration(breathing out).

Hope it helps :)

This is the smallest mammal.​

Answers

Answer:

bumblebee bat

Explanation:

Answer:

?

Explanation:

....................

???????????????????????


1. A hedgehog lives in a backyard in England. Every night, the house
owner puts out a bowl of canned cat food and hard-boiled egg. The hungry
hedgehog eats some of the food, then stops when it is no longer hungry. This
pattern helps the hedgehog to maintain a steady energy level and weight. What is
the name for keeping a stable internal environment despite changes in the
outside environment?
A. hormonal control
B. stimulus and response
C. balance
D. homeostastis

Answers

D. Homeostasis is the internal control

Answer:  D. homeostastis

Question 4

For which type of anemia would getting a family health history be most important?


a. iron deficiency

b. sickle cell anemia

c. normocytic anemia

d. megaloblastic anemia

Answers

Answer:

Sickle cell anaemia is what I think is the answer

2. What are the two major subdivisions of the nervous system, and what does each division do?

Answers

Answer:

2 Major Subdivisions:

Central Nervous System

Peripheral Nervous System

Explanation:

The central nervous system (CNS) regulates the majority of bodily and mental activities. It is divided into two parts: the brain and the spinal cord. The brain is the core of our ideas, the translator of our surroundings, and the source of control over physical action.

The PNS is the nerve that links the CNS to the rest of the body. The peripheral nervous system's principal job is to link the brain and spinal cord to the rest of the body and the outside world. The peripheral nervous system sends and receives information to and from the central nervous system. This is done by neurons that convey information from sensory receptors in the eyes, ears, skin, nose, and tongue, as well as stretch receptors and nociceptors in muscles, glands, and other internal organs.

The abundance of sodium leak channels in skeletal muscle is ______ the abundance of sodium leak channels in a typical neuron.

Answers

The abundance of sodium channels in muscles is as important as the abundance of sodium leak channels in a typical neuron.

Sodium plays an essential role in the body, this includes important functions such as:

Intervening in the process of muscular contraction.Intervening in the process of interneural communication.

This is possible through sodium channels in cells that allow sodium to enter or leave the cell at very specific times and this causes specific reactions in cells.

In neurons: Sodium channels are abundant and essential because due to the action of sodium signals are passed from one neuron to others.In muscles: Sodium channels are abundant and essential, especially in skeletal muscles. The role is sodium is to contract or relax muscles, which makes movement possible.

Based on this, the presence of these channels in both neurons and skeletal muscles is equally important.

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