3. What happens when a cell is subjected to a solution where the water concentration is equal to that inside the cell (isotonic solution)?

Answers

Answer 1

Explanation:

In an isotonic solution the relative concentration of solute and water are equal on both sides of the membrane.so there is no water movement so there is no change in the size of the cell but, when a cell is placed in a hypotonic solution water will enter the cell and the cell will swell.


Related Questions

Which of the following is NOT a type of muscle?
Question 19 options: The answer is "LONG" the rest are muscles.

Cardiac

Skeletal

Long

Smooth

Answers

Answer:

Long is not a muscle

Explanation:

the 3 types of muscles are cardia skeletal smooth, have a great day

The answer is "Long." "Long" is not a type of muscle; it seems to be an incorrect option. The correct options for types of muscle are Cardiac, Skeletal, and Smooth.

These are the three main types of muscles found in the human body. Cardiac muscles are found in the heart, skeletal muscles are attached to the skeleton and enable voluntary movement, and smooth muscles are found in various organs and control involuntary movements.

Therefore, "Long" is not a recognized type of muscle and does not fit within the categories of cardiac, skeletal, or smooth muscles.

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PLzzz helpp Directions: Analyze the image and answer the question that follows.


1. Which line, red or black, represents a reaction taking place with an
enzyme? How do you know?

Answers

Answer:

red

Explanation:

Enzymes lower the activation energy needed for a reaction to occur.

The correct line is red how I know is cause I’m smart and looked at the other comments

Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. They identify the gene responsible for toxin production. The dominant allele (T) codes for an enzyme that makes the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are determined and used to determine the actual allele frequencies in the population.

Required:
Is this population in Hardy-Weinberg equilibrium? Calculate the T and t.

Answers

Complete question:

Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. They identify the gene responsible for toxin production. The dominant allele (T) codes for an enzyme that makes the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are determined (TT = 0.56; Tt = 0.28; tt = 0.16) and used to determine the actual allele frequencies in the population. Is this population in Hardy-Weinberg equilibrium? Calculate the T and t.

Answer:

No, the population is not in H-W equilibrium

Explanation:

Due to technical problems, you will find the complete explanation in the attached file

Which animals have webbed Feet? ​

Answers

Answer:

 Ducks, pelicans, crocodiles, platypuses, along with some frogs, dogs, and cats.

Answer:

Ducks, pelicans, crocodiles, platypuses, along with some frogs, dogs, and cats.

Explanation:

The human body ___________ (can/cannot) produce all the amino acids.

Answers

Answer:

only 10 out of 20

Explanation:

Humans can produce 10 of the 20 amino acids. The others must be supplied in the food. ... The essential amino acids are arginine (required for the young, but not for adults), histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These amino acids are required in the diet.

If an organisms has 50 chromosomes in a diploid
cell, how many would be in a haploid cell?

Answers

Answer

25

Explanat

Bcz the total number of chromosome are divided into two

Animal and plant cells have thread-like fabrications in their nucleus made up of DNA and proteins. It is the most important for passing the genetic information from the parent to the offspring.

If the organism has 50 chromosomes in a diploid cell, it will have 25 chromosomes in a haploid cell.

This can be explained as:

Diploid is a cell condition in which the chromosomes are found in pairs and is represented as 2n. They have one set of chromosomes from each parent.

Haploid (n) is a cell condition when there is only half the number of chromosomes present or when there are only chromosomes from the single parent.

Therefore, in the haploid condition 25 chromosomes will be present.

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QUESTION 1 (POLL)
We can feed more people with grain than with meat and would
take up less space on our planet to do all this.
SELECT AN ANSWER
True
False
This can not be measured
SUBMIT

Answers

Answer:

True.

Explanation:

I say true, but we still need both. And it would be really difficult to get an accurate measurement on it.

Answer:

True

Explanation:

Plz give me brainiest If I helped thanks <333 :3

6. The replication of chromosomes by eukaryotes occurs in a relatively short period of time because

Answers

Answer:

because each chromosome contains multiple replicons. 

How is mutation different from adaptation?

Answers

Answer:

It can be a genetic mutation or it can be a change in a strategy. ... In this definition a mutation is any evident change (regardless of its effect on success), and adaptation is a change that made the group thrive in a given circumstance or environment.

Explanation:

Answer:

mutation can be a change in strategy and adaption is a change that made the group thrive in a given circumstance or environment.

define Hypothermia in a way a elementary kid would understand

Answers

Having a very low body temperature! Which can be very dangerous!
Your temp is too low and thats not good

the phosphate groups are the polar part of the phospholipid because they are:

Answers

A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water ...

Why does ice float on water?
A.
The temperature of ice is lower than the temperature of water.
B.
The temperature of water and ice are the same.
C.
The density of Ice is less than the density of water.
The density of ice is greater than the density of water.
D.
Reset
Next

Answers

Answer:

The density of ice is less than the density of water

Explanation:

PLS ANSWER I WILL GIVE BRAINLIEST!!!
6.What is the process a plant uses to create glucose?
A. ATP
B. Cellular Respiration
B. Cell Membranes C. Cytoplasm D. Mitochondria
C. Diffusion

7. What organelle does cellular respiration take place in?
A. Chloroplast
B. Lysosome
D. Photosynthesis
C. Mitochondria
D. Nucleus

8. The movement of particles from a less crowded area to a more crowded area requires
A. Diffusion
B. Energy
B. Osmosis and endocytosis
C. Endocytosis

9. Which of these are types of passive transport?
A. Osmosis and diffusion
D. Sunlight
C. Diffusion and exocytosis
D. Endocytosis and exocytosis

Answers

Answer:

6. Cellular respiration

7. Mitochondria

8. Diffusion

9. Osmosis and diffusion

Which type of force is a contact force?

A. Gravity
B. Electromagnetic force
C. Friction
D. Strong nuclear force​

Answers

Friction is the answer

Answer:

Friction

A-P-E-X

Look at the data in the table to the right. Then, answer the question that follows.
Based on the data in the table, what conclusion can you draw about the energy needs of different cells?

All cells need the same amount of energy.

Skin cells use more energy than muscle cells.

Cells that need more energy, like muscle cells, have more mitochondria.

Cells that have more mitochondria are larger than other types of cells.

A 2-column table has 4 rows. The first column is labeled Cell type with entries typical animal cell, skin, muscle, liver. The second column is labeled Number of mitochondria with entries 1,000 to 2,000, 200, greater-than 2,000, greater-than 2,000.

Answers

Answer:

The correct answer is: C.

Muscle cells require more energy for contraction than any other cell. Hence, option C is correct.

What are mitochondria?

The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).

It generates ATP through the process of oxidative phosphorylation. Small chromosomes found in mitochondria are found there. In most cases, mitochondria and consequently mitochondrial DNA are exclusively passed down from the mother.

Muscle cells contain a large number of mitochondria because they require more amount of energy for contraction. Hence, option C is correct.

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Which is a cause of chemical weathering
A.gravity
B.acid
C.sunlight
D.wind

Answers

the answer is b bc yes

Answer:

B. Acid

Explanation:

Acid is the cause of chemical weathering because chemical weathering only occurs when water or whatever mixes with the water is slightly acidic, i.e. salt deposits on the ground mixing with run-off rain water and wearing away at the surrounding environment. Acid rain is also the perfect example of this.

I NEED HELP ASAP!!!!!! * IS MY ANSWER

metabolism is a process of breaking down molecules and forming new ones.

Where do most of this occur within the cell?

A-CYTOPLASM ******

B- NUCLEUS

C- DNA

D- CELL WALL

Answers

The answer is a-cytoplasm

how are unicellular and multicellular organisms different

Answers

Answer:

Unicellular organism are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organism use many different cells to function.

Explanation:

An organism that has adaptations that enable it to hibemate for long periods of time is more likely to by found in which of the following biomes:
forest
desert
grassland
tundra

Answers

Tundra; to get through the long and harsh winters.

Which is true about scientific theories?
A. Scientific theories can never be proven wrong
B. Scientific theories are always unreliable
C. Scientific research theories prevent new questions from being asked
D. Scientific theories can be rejected by new reliable evidence

Answers

the correct answer is D
The person on top of me is correct it’s D I took the test

A student designed an experiment totest
the effects of light and water on plant growth.
How could this experiment be improved?

Answers

Answer:

answer C

Explanation:

You only need to have 1 variable at the time and use the other as dependent

Answer:

I believe the answer is D, all of the above

Explanation:

Which letter indicates a cell structure that directly controls the movement of molecules into and out of the cell?

Answers

Answer:

Cell membrane controls the movement of molecules into and out of the cell

Explanation:

Answer:

cell membrane

Explanation:

it controls what goes in and out of the cell

Which of the following are sources of low-level radiation?
A)
medical X-rays
B)
nuclear weapons testing
C)
buring of fossil fuels
D)
all of the above
E)
a and c only

Answers

Answer:

im pretty sure its E

Explanation:

The sources of low-level radiation are A) medical X-rays and E) the burning of fossil fuels, so the correct answer is E) a and c only, as radiation can be classified into two main types: ionizing radiation and non-ionizing radiation.

What is radiation?

Medical X-rays are a type of ionizing radiation used for medical imaging. Although the amount of radiation exposure from a single X-ray is usually very small, frequent exposure to X-rays can increase the risk of cancer. The use of X-rays in medical imaging is carefully monitored to ensure that the benefits outweigh the risks. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, which can cause damage to living tissue and increase the risk of cancer. Medical X-rays and the burning of fossil fuels are sources of ionizing radiation that can produce low-level radiation.

Hence, the sources of low-level radiation are A) medical X-rays and E) the burning of fossil fuels, so the correct answer is E) a and c only.

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There 4 types of connective in the body List the 4 types and then thoroughly explain why these tissues are grouped together as connective tissues What do they have in common?

Answers

Answer:

Connective tissues come in a vast variety of forms, yet they typically have in common three characteristic components: cells, large amounts of amorphous ground substance, and protein fibers.

Explanation:

Shifting biomes could have consequences for the regions in which the shifts occur. Read the two cases below and decide which consequences would apply to one or both cases.Case 1: The biome of a small agricultural community in the western United States changes from grassland to desert. A species of migrating duck, which can carry bird flu, goes locally extinct.Case 2: The biome in northern Russia changes from tundra to taiga. Timber harvesting in the region becomes possible. Arctic foxes go locally extinct and are replaced by red foxes that commonly carry rabies.Sort each consequence based on whether it would apply to Case 1, Case 2, or botha. increased risk of wildfiresb. local economy suffersc. carbon storage decreasesd. agricultural production decreasese. carbon storage increasesf. disease vector range changesg. decreased water availabilityh. local economy thrivesi. species range changesCase 1Case 2Cases 1 and 2

Answers

Answer:

increased risk of wildfires- both

local economy suffers- Case 1

carbon storage decreases - Case 2

agricultural production decreases - Case 1

carbon storage increases -  Case 1

disease vector range changes - Case 2

decreased water availability - Case 1

local economy thrives - Case 2

species range changes - Case 2

Explanation:

Fires are common to  taiga biomes. Owing to the fact that the biome in case 1 changed from an agricultural community to a grassland and subsequently to a desert, agricultural productivity will decrease, the local economy will suffer, water availability is decreased and local economy suffers as a consequence of desertification.

On the other hand, in case 2, the diseases vector range as well as species range changes due to the change in the species of foxes from Artic foxes to red foxes that carry rabies. Carbon storage decreases as the taiga biome acts as a carbon sink. The local economy thrives due to timber production.

Lastly, species range changes both in case 1 and case 2 since there is a loss of species. Species range is the area where a particular species can be found during its lifetime. Certainly, the range of area where species are found changed in cases 1 and 2.

The consequences from the given cases are sorted as:

case 1: b. the local economy, c. carbon storage decreases, d. agricultural production decreases, f. disease vector range changes, i. species range changes, g. decreased water availability

Case 2: a. increased risk of wildfires, e. carbon storage increases, f. disease vector range changes, i. species range changes, h. the local economy thrives

Case 1 and 2 both: f. disease vector range changes, i. species range changes.

Consequences by shifting biomes?

Case 1:

The shifting of biome from the agricultural community in the United States changes from grassland to desert result in consequences like decrease in the carbon storage and local economy suffers because of reduction in the agricultural production.

Also since the biome changes to the desert, it results in decreased water availability. Also since the biome changes, a species of migrating duck that carries flu goes locally extinct which implies that there will be a change in the range of species as well as the disease vector changes.

Case 2:

Since the biome in Russia changes from Tundra to Taiga now harvesting becomes possible and due to which carbon storage increases which in turn results in the flourishing of the local economy.

As an increase in the forests, there will be an increased risk of wildfires. Since the c foxes go locally extinct and are replaced by red foxes which carry rabies which implies that species range changes and the disease vector range changes.

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Why is it NOT correct to say that individuals evolve?

Answers

Answer:

individuals grow and develop throughout their life, but evolution is something that happens to a species over generations. evolution takes a long time and is a species adaptation to its environment, such as arms getting longer or extra bones. babies are born with these adaptations throughout generations, it’s not something individuals develop during their lifetime.

hope this helps!

Match the term with the definition.
Organism Cells
Tissue Organ
System
1. Similar cells act together to perform of common function.
2. Group of organs cooperate to accomplish common purpose.
3. Tivo or more different tissues arranged to perform a special function.
4. Smallest living unit of structure and function in the body.
5. Denotes a living thing.

Answers

Answer:

1.tissue

2.organ system

3.organ

4.cell

5.tissue

Explanation:

1.Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

2.Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

3.Cells grouped together to perform a specialized function are known as a tissue. Tissues arranged together to perform a special function are known as an organ. Organs that together to perform the many functions of the body as a whole are called a system. ... Any abnormal development of tissues or organs.

4.Molecules are the chemical building blocks of all body structures. A cell is the smallest independently functioning unit of a living organism.

5.Tissue. Word used to denote a living thing. Organism. Level made up of a group of tissue working together. Organ.

Organism denotes a living thins. Cells are the smallest living unit of structure and function in the body. Tissue is the similar cells that act together to perform a common function.

What is a cell?

A cell is the basic unit of life. It is the structural and functional unit of life in the body. Cells are the smallest unit which are capable of independent existence. A number of similar cells act together to perform a common function is called a tissue.

Organ is made up of two or more different tissues which are arranged to perform a special function. A group of different organs cooperate to accomplish common purpose such as digestive system, excretory system, etc. Organism denotes a living thing which is made up of different organ systems which combine to perform various functions.

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The human appendix, a vestigial structure, is part of which structure.

Answers

Answer:

Appendix, in anatomy, a vestigial hollow tube that is closed at one end and is attached at the other end to the cecum, a pouchlike beginning of the large intestine into which the small intestine empties its contents. It is not clear whether the appendix serves any useful purpose in humans.

The answer is anatomy.

Club foot is a rare disease due to congenital skeletal abnormalities, both genetic and nongenetic factors are thought to be responsible for club foot. A family in which club foot was inherited as an autosomal dominant trait with reduced penetrance was identified in 2008. It was found that a mutation in the PITXI gene that caused club foot in this family. Through DNA testing, they determined that 11 people in the family carried the PITXI mutation, but only 8 of these people had club foot.

Required:
What is the penetrance of the PIXTI mutation in this family?

Answers

Answer:

72.72%

Explanation:

The Penetrance of the PIXTI mutation in this family can be represented as

The Penetrance represents the percentage of people who show/have the disease

family size = 11

number of people with the disease = 8

Penetrance of PIXTI in the family can be calculated as  = 8/11 * 100

                   = 0.7272  * 100

                   = 72.72%

The remaining 27.38 % are just carriers of the PITXI gene

Choose the letter that indicates the organelle that contains most of a cell's DNA. An animal cell with definite structures labeled from A to E. The vesicles with solid particles inside are labeled A.
The vesicles with no solid matter inside are labeled B.
The large membrane-bound organelle is labeled C. It is located in the center of the cell and contains a mass of densely stained granules and fibers.
The structure labeled D consists of flattened membranous-like stacks.
The tiny dots labeled E are located everywhere in the cell and do not have any membrane.

Answers

Answer:

C.

Explanation:

A cell is composed of specific structures that perform specialized functions called ORGANELLES. Among these organelles, an important one exists called NUCLEUS, which is responsible for all other cellular functions as it directs them.

The NUCLEUS is located centrally in the cell and is found as a membrane-bounded organelle in cells that possess it (eukaryotes). The NUCLEUS, which is described in this question with the letter "C" contains most of a cell's genetic material called DNA.

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