Question 1

Define osmosis. What is the primary driving force for osmosis?

Accepted Answer

The answer of Define osmosis. What is the primary driving...

Question 2

The nucleus is enclosed by the nuclear _____.

Accepted Answer

The answer of The nucleus is enclosed by the nuclear...

Question 3

Which of the following types of cells contain microvilli to increase the surface area of their plasma membrane for absorption?

Accepted Answer

A) sperm cell 
B) smooth muscle cell 
C) nerve cell 
D) red blood cell 
E) epithelial cell of the small intestine

Question 4

A chemical agent or radiation that causes cancer is referred to as a/an

Accepted Answer

A) oncogene 
B) mutant 
C) carcinogen 
D) neoplasm 
E) biopsy

Question 5

The basic chemical framework of the plasma membrane is the lipid _____.

Accepted Answer

The answer of The basic chemical framework of the plasma...

Question 6

Which of the following is necessary for simple diffusion to take place?

Accepted Answer

A) a concentration gradient 
B) a selectively permeable membrane 
C) a hypertonic solution 
D) cellular energy 
E) all of the choices are correct

Question 7

All of the following are associated with mitochondria EXCEPT

Accepted Answer

A) double membrane 
B) cristae 
C) matrix 
D) proteasomes 
E) small number of genes and ribosomes

Question 8

Cytosine is found in both DNA and RNA and it only hydrogen bonds with a complementary nitrogenous base called guanine.

Accepted Answer

A) True 
 B)False

Question 9

A CGT base triplet within a gene on DNA is transcribed into mRNA as

Accepted Answer

A) CAT 
B) GCA 
C) GCU 
D) ACU 
E) TGC

Question 10

The human somatic cells contain ____ chromosomes.

Accepted Answer

A) 46 
B) 23 
C) 43 
D) 24 
E) 54

Question 11

Osmotic pressure is the pressure that builds up inside a cell and resists net water movement across its membrane.

Accepted Answer

A) True 
 B)False

Question 12

All of the following are nucleotide bases commonly found in DNA molecules EXCEPT

Accepted Answer

A) adenine 
B) cytosine 
C) guanine 
D) thymine 
E) uracil

Question 13

To initiate the transcription of a gene, RNA polymerase binds to a _____, which is usually found near the beginning of the gene.

Accepted Answer

A) promoter 
B) terminator 
C) start codon 
D) stop codon 
E) anticodon

Question 14

The process by which worn-out cellular organelles are digested is called

Accepted Answer

A) autolysis 
B) autoregulation 
C) autophagy 
D) lysis 
E) phagocytosis

Question 15

The primary role that integral membrane proteins play in active transport is to

Accepted Answer

A) move solute molecules down the concentration gradient. 
B) control cellular metabolism. 
C) move water by osmosis to maintain balance in the intracellular compartment. 
D) produce the cellular energy needed for active transport. 
E) bind and transport solute molecules against the concentration gradient.

Question 16

Protective ends of chromosomes called telomeres shorten with each cycle of cell division.

Accepted Answer

A) True 
 B)False

Question 17

A base triplet of AUG on mRNA would match the anticodon _____ on tRNA

Accepted Answer

The answer of A base triplet of AUG on mRNA...

Question 18

A semipermeable membrane, which permits water movement but not ion movement, separates two solutions. Solution A contains 0.9% NaCl and solution B contains 9.0 % NaCl. With respect to this system, which of the following statements would be true?

Accepted Answer

A) Water would move from solution A to solution B. 
B) Water would move from solution B to solution A. 
C) Na+ would move from solution A to solution B. 
D) Na+ would move from solution B to solution A. 
E) No net movement of water or ions would occur.

Question 19

A solution containing the same concentration of water molecules and solutes as a red blood cell is considered to be a/an _____ solution.

Accepted Answer

The answer of A solution containing the same concentration of...

Question 20

In somatic cell division, the phase in which the DNA is replicated is called

Accepted Answer

A) mitotic phase 
B) prophase 
C) anaphase 
D) interphase 
E) cytokinesis

Exam 3: Cells

Define osmosis. What is the primary driving force for osmosis?

The nucleus is enclosed by the nuclear _____.

Which of the following types of cells contain microvilli to increase the surface area of their plasma membrane for absorption?

A chemical agent or radiation that causes cancer is referred to as a/an

The basic chemical framework of the plasma membrane is the lipid _____.

Which of the following is necessary for simple diffusion to take place?

All of the following are associated with mitochondria EXCEPT

Cytosine is found in both DNA and RNA and it only hydrogen bonds with a complementary nitrogenous base called guanine.

A CGT base triplet within a gene on DNA is transcribed into mRNA as

The human somatic cells contain ____ chromosomes.

Osmotic pressure is the pressure that builds up inside a cell and resists net water movement across its membrane.

All of the following are nucleotide bases commonly found in DNA molecules EXCEPT

To initiate the transcription of a gene, RNA polymerase binds to a _____, which is usually found near the beginning of the gene.

The process by which worn-out cellular organelles are digested is called

The primary role that integral membrane proteins play in active transport is to

Protective ends of chromosomes called telomeres shorten with each cycle of cell division.

A base triplet of AUG on mRNA would match the anticodon _____ on tRNA

A semipermeable membrane, which permits water movement but not ion movement, separates two solutions. Solution A contains 0.9% NaCl and solution B contains 9.0 % NaCl. With respect to this system, which of the following statements would be true?

A solution containing the same concentration of water molecules and solutes as a red blood cell is considered to be a/an _____ solution.

In somatic cell division, the phase in which the DNA is replicated is called