301 Best Biology Questions and Answers (Q&A) - ProProfs Discuss

Can you state one function of epithelial cells?

D. Nichols
Answered: Feb 09, 2021

The function of the epithelial includes protection, selective absorption, and transcellular transport. Epithelial cells are the type of cells found lining the surface of the body. Epithelial...Read More

4 Answers

568 views

How does RNA polymerase performs a template directed synthesis?

G. Roland, Professor
Answered: Feb 12, 2021

One strand of DNA, the template strand, is employed as a template for RNA synthesis. RNA polymerases transport the template strand and use base pairing complementarity with the DNA template to...Read More

3 Answers

568 views

What changes that occur when a chemical solution goes from pH 5 to pH 8?

Robert Hazlewood, Senior Executive
Answered: Jan 29, 2019

The pH is a scale used to measure the acidity or basicity of a solution in which water is the solvent. The scale goes from 0 (most acidic) to 14 (most basic), with 7 being neutral. If the pH goes...Read More

2 Answers

568 views

What is the function of cellulose in plants?

W. Wright, Biology student
Answered: Feb 18, 2021

One of the most important and abundant biomaterials on Earth is cellulose. Although it is majorly produced by the plant, some bacteria can also produce it. Cellulose is similar to starch as both...Read More

6 Answers

564 views

Where doesn't Eubacteria live?

John Smith
Answered: Apr 24, 2024

Extreme Harsh Conditions

1 Answer

563 views

What is not recycled but is lost from ecosystems?

M. Kennedy, Web Content Writer
Answered: Feb 12, 2021

Energy is something that is always recycled in the ecosystem. There are some theories stating that energy can neither be created nor destroyed, which means that it is always around. Even objects...Read More

3 Answers

561 views

What is the formula for percent change in mass?

Zwolfgang_henckels
Answered: Apr 24, 2024

{(final mass - initial mass) / (initial mass)} x 100

1 Answer

560 views

What are the advantages and disadvantages of mitosis?

L. Hawkes, Teacher
Answered: Feb 12, 2021

Some of the advantages of mitosis include rapid populating. Mitosis makes it possible for offspring to be reproduced in large quantities, filling up niches quickly, preventing competition and...Read More

4 Answers

554 views

What kind of feedback loop is the following?

W. Wright, Biology student
Answered: Feb 18, 2021

Going by the information provided in this question, this is a negative feedback loop. While there are two major types of feedback loops, negative and positive feedback loops, negative feedback...Read More

5 Answers

545 views

What cellular organelle is(are) the shipping and receiving center(s) for the cell?

W. Wright, Biology student
Answered: Feb 18, 2021

The cellular organelle that serves as the shipping and receiving center for the cell is the Golgi apparatus. Most products are usually transported to the Golgi apparatus after they must have left...Read More

4 Answers

544 views

How do cells at the completion of meiosis compare with the cells that have replicated their DNA and are just about to beging meiosis?

W. Wright, Biology student
Answered: Feb 18, 2021

Half of the number of chromosomes would be possessed by the cells and one-fourth of the DNA amount. This simply means that half of the numbers of chromosomes would be possessed by the cells that...Read More

5 Answers

534 views

Which component of the following reaction is the enzyme?

Wldickerson
Answered: Apr 24, 2024

Sucrase

1 Answer

532 views

What are the single thread-like cells on the root epidermis called?

F. Lopez
Answered: Feb 12, 2021

The cells on the root epidermis are referred to as root hairs, and these hairs encourage and assist with water absorption. The root hairs are lengthy, and they can penetrate between the soil...Read More

6 Answers

530 views

What best describes the true nature of natural selection?

Samantha Stewart, Philanthropist
Answered: Feb 18, 2021

The sentence that best describes the true nature of natural selection is "Heritable traits that promote reproduction become more frequent in a population from one generation to the next". The...Read More

6 Answers

529 views

How do cells use the ATP cycle?

W. Wright, Biology student
Answered: Feb 18, 2021

The ATP cycle allows the cells to have a constant supply of ATP in order for them to keep performing their functions. ATP is needed mostly by energy-requiring reactions. Some reactions don't need...Read More

6 Answers

529 views

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