Which of these statements about osmosis and active transport is NOT correct? A) Both endocytosis and active transport require cell energy.

B) Osmosis requires cell energy while active transport does not.

C) Neither faciliated diffusion nor osmosis requires cell energy.

D) Diffusion of gases and other small molecules requires no energy on part of the cell.

Answers

Answer 1

Answer:

The correct answer would be option B.

Osmosis refers to the passive movement of water down the concentration gradient across a semi-permeable membrane. Thus, it does not require cell energy.

In contrast, active transport requires cell energy as it transports substances across the cell membrane against the concentration gradient, that is, from the region of low concentration to the region of high concentration.

It usually gets energy by ATP hydrolysis.

Examples may include sodium-potassium pump, GLUT transporters in intestinal cells et cetera.

Answer 2

Answer: B)bcz osmosis donot require energy but active transport does require energy

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Describe how plants and animal cells obtain their energy?

Proteins are polymers.
a. True
b. False

Answers

False

Proteins are polymers of molecules called amino acids, some contain thousands. Lipids are formed when a glycerol molecule combines with compounds called fatty acids, therefore they are not polymers because they contain one molecule and are not macromolecules. Hope this helps! :)

A plant can produce either purple flowers or white flowers. What is the probability of purple-flowered offspring if two plants that are heterozygous for purple flowers are crossed?

Answers

Answer:

A heterozygous trait contains two different allelic forms of a gene in which one is a dominant allele and one is recessive allele. If there is a crossing between two plants that are heterozygous for their trait then the probability of expression of the dominant allele is 3/4.

So according to this question plants are heterozygous that means the genes would be like Pp and Pp. Here P indicates the purple color allele which is dominant and p indicates recessive white color allele.

Therefore cross between these two will give genotypes PP, Pp Pp, and pp. So according to the law of dominance that says dominant allele will express itself, therefore, probability of purple-flowered offspring is 3/4 because 3 out of four genotypes have the dominant allele.

You would have a 3 out of 4 chance of getting a purple flower if purple is the dominant trait.

~I love biology!!

How did the land, atmosphere, and oceans of earth form?

Answers

They formed by the Big Bang.The oceans formed by comets.Hope this helps.

The energy for life is: A. hydrothermal vents B. geothermal energy C. is recyclable D. is only initially captured by plants and other photosynthetic organisms; the rest of life depends on the energy the photosynthesizers captured for their energy.

Answers

Answer: A

Explanation:

The oxygen produced by the chloroplast passes out of the cell by

Answers

Hi There! :)

The oxygen produced by the chloroplast passes out of the cell by

Photosynthesis

The destruction of salt marshes will directly harm each organism except

Answers

The destruction of salt marshes will directly harm each organism except for the deep ocean squid. Salt marsh is an area between land and brackish water which is known to flood. It collects sediments and nutrients that are very essential to the ecosystem.

Answer:

deep ocean squid

Explanation:

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