A student used a microscope to observe Elodea submerged in a solution. The student observed the cell cytoplasm pull away from the cell wall and clump together in the center of the cell. Which statement best explains why this occurred? A-The cell was submerged in a hypertonic solution. B-The cell was submerged in a hypotonic solution. C-The cell was submerged in a pure solution. D-The cell was submerged in an isotonic solution.

Answers

Answer 1

Answer:

A

Explanation:

The correct answer would be that the cell was submerged in a hypertonic solution.

A hypertonic solution is a solution with a higher concentration of solutes than that of the cytosol of a cell suspended in it. When a cell is suspended in a hypertonic solution, water moves osmotically from the cytosol to the hypertonic solution. This causes the cytoplasm to collapse and the cell becomes flaccid.

The correct option is A.

Answer 2

Answer:

D. The cell was submerged in a hypertonic solution.

Explanation:


Related Questions

What is a karyotype?

35 POINTSS!!

Answers

Answer:

A karyotype is an individual's collection of chromosomes.

Explanation:

Explanation:

A karyotype is an individual's collection of chromosomes. The term also refers to a laboratory technique that produces an image of an individual's chromosomes. The karyotype is used to look for abnormal numbers or structures of chromosomes.

What happens during the S phase of Interphase?

a
cell growth
b
DNA synthesis
c
the organelles are copied
d
the nucleus divides

Answers

Answer:

I am pretty sure that the answer is D

Explanation:

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

Answer:

d

Explanation:

took the quiz

A __________
mutation occurs when a base in the DNA sequence is replaced by a different
base.

Answers

Answer:

Substitution Mutations

Explanation: A substitution mutation occurs when specific bases (A, T, C or G) in a gene are swapped for different ones. This type of mutation doesn't cause a difference in the number of bases like insertion or deletion mutations do. Substitution mutations just switch out one or more bases for different ones.

Hope this helps :3

A substitution mutation occurs when a base in the DNA sequence is replaced by a different base.

What do you mean by substitution mutations?

Substitution is a type of mutation in which one nucleotide is replaced by a different nucleotide. The term can also refer to the replacement of one amino acid in a protein with a different amino acid.

Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.

Substitution mutations can be good, bad, or have no effect. They cause three specific types of point mutation: silent, missense, and nonsense mutations.

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People's choices can have a positive or negative effect on their health. Describe one positive choice and one negative health choice a person could make. Be sure to explain how each could impact an individual's health and, if applicable, the health of others.

Answers

Answer: One positive is they can eat whatever they want, whenever they want. (If they have money) a negative also since people have the freedom to choose what they eat it can  impact on their health.

Explanation: Positive Explanation: if someone wanted to have a good cake every once in awhile they can, because no one is telling them not to(unless they don't have money, or is dietbet/on a diet.)

Negative: Since people are eating whatever they want they can CAUSE SERIOUS HEALTH PROBLEMS,  causing you to be diabetic, have cancer, poor exercise also can lead to not be able to walk everyday, being unable to walk, can lead to early death. It could affect others because they'll be worried about you, maybe even have to pay for your house bill because you can't work. problems can lead up to more problems.  

One positive choice someone can make would be drinking more water. One negative choice someone can make would be smoking too many cigarettes. Drinking more water can boost your health by decreasing chances of digestive problems and increasing blood pressure. Also, smoking too many cigarettes can lead to heart diseases, lung diseases, and diabetes.

◘HURRY PLEASE◘
↓↓↓↓↓↓↓↓↓↓↓↓↓↓

Answers

Answer:

Carbonhydrates

Explanation:

Answer:

Lipids

Explanation:

It's in the name : Phospholipid

Any lipids encompass molecules like fatty acids.

what is the average human body temperature?

Answers

Answer: average oral temperature is  97.5˚ or stated as 36.5–37.5 °C

Explanation:

Answer:

98.6 degrees Fahrenheit.

Explanation:

Fasttttttttttttttttttttttttttttttt 15 points

Answers

Answer:

thanks

Explanation:

b is helpin

Answer:

b

Explanation:

3. What do you notice about the negatively charged atom of one atom in one molecule and the positively
charged atom of another water atom when they touch?

Answers

Answer:

i believe it is they create a chemical compound

Explanation:

When the negative atom within one water molecule "touches" a positively charged atom of another water molecule, they form a hydrogen bond.

The chemical formula for water is H2O. What this means is that a single water molecule is made up of:

a Single Oxegen atomtwo Hydrogen atoms

The negative pole of the water molecule is the oxygen atom, which is attracted to the positive pole of neighboring water molecules that are formed by their respective hydrogen atoms.

The electronegativity of the atoms involved causes the oxygen atom of one molecule of water, and the hydrogen atoms of another, to share electrons with it, thus forming a covalent bond.

For more information on covalent bonds see:

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How is the chicken adapted to support an embreyo?​

Answers

Answer:Chick Embryo Development. A chick emerges from a fertile egg after twenty-one days of incubation. The germinal disc is visible on the surface of the yolk. The development of the chick begins in the single cell formed by the union of two parental cells, egg and sperm, in the process known as fertilization.

Explanation:

Need help please?????

Answers

Answer:

Only 10% of the energy is transferred to the next level.

Explanation:

The pyramid base contains producers (make their food through inorganic substances like photosynthesis), they're called producers.. this is then passed through other organisms by consuming. Keep in mind 90 percent of the energy is lost as heat.

In areas with extremely high population density, which of the following is true?

Answers

Answer:

i cant see the following

Explanation:

guys can u please ASAP

1. Which of the following is provided directly by the sun to plants for photosynthesis?
A. Energy
B. Carbon dioxide
C. Oxygen

Answers

Answer:

energy is provided by the sun

What is its primary function of the structure of a plant cell?

Answers

Answer:Chloroplasts are organelles that are crucial for plant cell function. These are the structures that carry out photosynthesis, using the energy from the sun to produce glucose. In doing so, the cells use carbon dioxide, and they release oxygen.

Explanation:hope this helps

In all organisms, the cell is the fundamental unit of life. Plants, like animals and humans, are made up of multiple cells. The cell wall of the plant cell gives the cell its shape and covers the cell. Other organelles, in addition to the cell wall, are associated with various cellular activities.

What organelles are present in cell ?

Plant cells are eukaryotic cells that differ from other eukaryotic organisms in several fundamental ways. There is a nucleus and similar organelles in animal and plant cells. The absence of a cell wall outside of the cell membrane is one of the plant cell's distinguishing characteristics.The building blocks of plants are called plant cells. The primary function that plant cells perform is photosynthesis.The chloroplasts of a plant cell are where photosynthesis takes place. It is the way that plants use sunlight, carbon dioxide, and water to prepare food. During the process, ATP is produced as energy.Water and nutrients are transported from the roots and leaves to various parts of the plant by a few plant cells.A mature, higher plant's cells become specialized to carry out particular vital functions that are necessary for their survival. Some plant cells are responsible for storing food, while others transport water and nutrients.Parenchyma cells, sclerenchyma cells, collenchyma cells, xylem cells, and phloem cells are the specialized plant cells.

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Identify the process in which the cell strives to maintain dynamic equilibrium:
homeostasis
turgor pressure
cytolysis
plasmolysis

Answers

Answer:

homeostasis

Explanation:

Homeostasis refers to the ability of the cell to keep a constant and stable environment. This includes chemical, physical, and biological components.

Cells need to regulate their environment despite the conditions outside of the cell. They need to be able to quickly adapt to changes to avoid harm to the cell.  

Organisms which must survive by taking food from other plants or animals are called?

Answers

Answer:

Parasite

Explanation:

or a parasitic relationship

Answer:

theives

Explanation:

Which of the following is NOT found in the cell membrane:
Nucleic acids
Cholesterol
Proteins
Galactose
Phospholipids

Answers

Answer:

nucleic acid are not found in the the cell membrane.

Explanation:

They are only found in ribosomes and the nucleus as either DNA or RNA

Answer:

[tex]\boxed {\tt Nucleic \ Acids}[/tex]

Explanation:

Nucleic acids are the monomers of genetic material, such as DNA and RNA. These structures are found in the nucleus and ribosomes because DNA is stored in the nucleus, RNA is made in the nucleus, and RNA is used to make proteins in the ribosome.

Cholesterol, proteins, galactose, and phospholipids are all cell membrane components. Nucleic acids are not. We know they are in the nucleus and ribosomes. Therefore, the correct answer is nucleic acids.

Question 1


Stephen predicted that seeds would start to grow faster if an electric current traveled

through the soil in which they were planted.

a.Draw Conclusion

b.Test the hypothesis with an experiment

c.Recognize a problem

d.Form a hypothesis

10 points

Answers

Answer:

This question is asking to identify which step of scientific method the statement depicts. The answer is:

d.Form a hypothesis

Explanation:

Scientific method is the series of sequential steps that aims at solving a problem. These sequential steps include:

- Asking a question/make an observation

- Form a hypothesis

- Test the hypothesis via an experiment

- Analyze the result

- Draw conclusion

According to this question, Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. The problem of this investigation, which has already been identified, is whether seeds will grow faster if an electric current is applied to the soil.

However, the next step is to form an hypothesis, which is a testable prediction given to answer a question or solve an observed problem. In this case when Stephen predicted the outcome of the investigation, he was FORMULATING A HYPOTHESIS.

Need help asap!!

Two organisms mate and produce infertile offspring. Which is a true statement about why it is not able to reproduce?

A. The parents are a different genus and species

B. The parents are a different species, but the same genus

Answers

Answer:

a

Explanation:

a is the correct answer

The statement which is true about why it is not able to reproduce is that the parents are a different genus and species. Thus, the correct option for this question is A.

What is Species?

Species may be defined as the collection of organisms that can significantly reproduce with one another in nature and produce fertile offspring.

According to the context of this question, the process of speciation takes place when the members of similar populations no longer interbreed with one another in order to produce fertile offspring within their natural environment. So, the mating of two organisms can not produce fertile offspring until they belong to the same genus and species.

Therefore, the statement which is true about why it is not able to reproduce is that the parents are a different genus and species. Thus, the correct option for this question is A.

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in the water cycle water returns to earth as CONDENSATION usually in the form of rain or Snow true or false​

Answers

false. rain and snow are forms of precipitation, not condensation. hope this helped!


9. Which will most likely result if there is increased upwelling in a coastal
area?

A.Less living organisms in that area

b. Water will be warmer

C. Water will be colder

D.more aquatic life

Answers

Answer:

D more aquatic life

Explanation:

The Pompeii worm was discovered near _______. a. a hydrothermal vent b. a sea mount c. Hawaii d. the great barrier reef Please select the best answer from the choices provided A B C D

Answers

Answer:

The answer is A. hydrothermal vent

Explanation:

I just did it

Alvinella pompejana is known as the Pompiee worm. This organims is found in the deep hydrothermal vents in the Pacific ocean. Thus, the correct option is A.

What is Pompiee worm?

Alvinella pompejana, the Pompeii worm is a species of the deep-sea polychaete worm. It is an extremophile found only at the hydrothermal vents of the Pacific Ocean, discovered in the early 1980s off the Galápagos Islands by the French marine biologists.

The Pompeii worm (Alvinella pompejana) is a deep-sea polychaete vermiform extremophile. This organism can survive at extreme conditions. It is possible because of their bacterial coating which redistributes the heat to keep the worm cool. This bacteria not only help regulate the temperature of the worm but they also break down minerals from the vent to aid their host.

Therefore, the correct option is A.

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Plant cells have two organelles that animal cells do not contain. Name the two organelles that can be found only in plant cells and describe what each of those organelles do. Please answer soon

Answers

Cell wall and Chloroplast
Cell wall gives structure and protects the cell
Chloroplast helps with photosynthesis

Which of these are the most common in a cell? sugar? protein? fat? or water? also im stupid and dont know what class it would be in- all i know is that its in science

Answers

Answer:

i would say protein and fat

Explanation:

more - English Practice Book - 6
j: (Sipping his tea). What about your family?​

Answers

What I don’t understand

Which of the following hazards can severely harm a worker's lungs?

heat exposure

vehicle hazards

bins and silos

excessive noise

Answers

Which of the following hazards can severely harm a worker's lungs?

A). Heat Exposure.

Explanation:

In terms of weather/overall Heat:  Inhaling hot air, induces airway constriction making it difficult to breathe. This can be especially so with people with lung conditions. It's also found that this can cause COPD and many respiratory air conditions.

In terms of fire: Of course, it's known that smoke from fire can have a terrible effect on your lungs. It can restrict oxygen flow, which can and most likely be deadly.

Why it's not the other options:

b). Vehicle Hazards: This one would most likely have no or little correlation with lung health. Also, it's not specific enough.

C). Bins and silos don't have as much effect on the lungs as Heat exposure does.

D). Excessive noise would effect mainly the ears, not lungs.

Answer:

bins and silos

Explanation:

If the rotational speed of Earth increased:

Answers

Answer:

The faster the Earth spins, the shorter our days would become. With a 1 mph speed increase, the day would only get about a minute and a half shorter and our internal body clocks, which stick to a pretty strict 24-hour schedule, probably wouldn't notice.

Explanation:

Type of RNA that brings specific amino acids to the ribosomes

Answers

Your answer is Transfer RNA (tRNA)

What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/oil?

Answers

protease breaks down protien into amino acids
amylase and other carbohydrase break down starch into sugar
lipase enzymes break down fats and oils into fatty acids and glycerol

i dont know if that answers your question, if not emphasize

Answer:

b. Carbohydrate

Explanation:

1. A rabbit can cover a distance of 80 min 5 s. What is the speed of the rabbit?

Answers

I did 80 divided but 5. Which gave me 16 so the speed of the rabbit is 16 mph

Answer:

[tex]\boxed {\tt 16 \ m/s}[/tex]

Explanation:

Speed can be found by dividing distance by time.

[tex]s=\frac{d}{t}[/tex]

The rabbit travels 80 meters in 5 seconds.

The distance is 80 meters and the time is 5 seconds.

[tex]d= 80 \ m \\t- 5 \ s[/tex]

Substitute the values into the formula.

[tex]s=\frac{80 \ m }{5 \ s}[/tex]

Divide.

[tex]s= 16 \ m/s[/tex]

The rabbit's speed is 16 meters per second.

Which step is the beginning of photosynthesis?

Answers

Answer:

light dependant reactions

Explanation:

Photosynthesis is carried out by green plants. The initial step of photosynthesis is the photolysis of water. This is a part of the light reaction.

What is photosynthesis?

Photosynthesis is completed in two steps: the light-dependent reaction and the light-independent reaction. The sun is required for the light-dependent reaction. Two photosystems are involved in the light reaction. Light reaction starts from photolysis of water.

The reaction starts at photosystem II (PSII). At this site, the photolysis of water takes place. As a result, sunlight causes the water to break and electrons to be released. This electron moves to plastoquinone. During the electron movement, protons are pumped to the thylakoid lumen.

From the plastoquinone, an electron moves to the cytochrome complex and then to the PSI complex through plastocyanin. From the PSI complex, the electron moves to NADP reductase to form NADPH. All the protons present in the lumen move through the ATP synthase complex, and ATP is produced. The journey of electrons starts with the photolysis of water.

Hence, photosynthesis starts with the breakdown of water molecules.

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