Biology Questions

30 Jul Biology Questions

nt aspect of a good microscope is

resolution.

magnification.

condensation.

the number of ocular lenses.

2.Select the statement(s) that accurately describe homeostasis.

The body has the ability to detect change, activate mechanisms that oppose it, and maintain relatively stable internal conditions.

The loss of homeostatic control can cause illness but cannot cause death.

Internal conditions are absolutely constant and must not fluctuate within a range.

The internal state of the body is best described as a dynamic equilibrium in which there is a certain set point and conditions fluctuate slightly around this point.

The first and fourth choices are correct.

3.    Which of the following statements is not true regarding inclusions?

Inclusions are not enclosed by a membrane.

nclusions have no functions that are necessary for cellular survival.

Inclusions can participate in ATP production in the cell.

Inclusions could be viruses or bacteria inside the cell.

None of the these is a false statement.

4.    Which of the following statements is true about the glycocalyx?

All animal cells have a glycocalyx.

Even between identical twins, the glycocalyx is chemically unique.

The glycocalyx helps one cell adhere to another.

All of these are true statements.

Only the first and third statements are true.

5.    Cells of all species have many fundamental similarities because of

spontaneous generation.

coincidence.

common ancestry.

the laws of randomness.

6.    What is the volume of a cuboidal cell that measures 5 µm on each side?

125 µm²

25 µm²

25 µm³

125 µm³

None of the choices is correct.

 

7.    In 1859 Louis Pasteur determined beyond all reasonable doubt that

cells arose from non-living matter.

cells only arose from other cells.

cells do not spontaneously generate.

All of the choices are correct.

Only the second and third choices are correct

 

8.    Dynamic equilibrium can be described as having a certain set point for a given variable where internal conditions remain constant at this point.

True

False

9.    Which of the following best distinguishes a Law from a Theory?

A law is a generalization about the predictive ways in which matter and energy behave, while a theory represents information that can be independently verified by any trained person.

A law is a generalization about the predictive ways in which matter and energy behave, while a theory is the result of inductive reasoning based on repeated, confirmed observations.

A law is the result of inductive reasoning based on repeated, confirmed observations while a theory is an explanatory statement or set of statements derived from facts and confirmed hypotheses.

A law is an explanatory statement or set of statements derived from facts and confirmed hypotheses while a theory is information that can be independently verified by any trained person.

10.  What is the surface area of a cuboidal cell that measures 5 µm on each side?

25 µm²

150 µm²

25 µm³

150 µm³

None of the choices are correct.