Filters
Question type

Study Flashcards

The functional units of DNA that contain the instructions for making one or more proteins are


A) chromosomes.
B) genes.
C) ribosomes.
D) codons.
E) RNA.

F) B) and C)
G) C) and D)

Correct Answer

verifed

verified

If an animal cell lacked centrioles, it would not be able to


A) move.
B) synthesize proteins.
C) produce DNA.
D) metabolize sugars.
E) form the mitotic spindle.

F) A) and D)
G) None of the above

Correct Answer

verifed

verified

The proper distribution of a cell's genetic material to two daughter cells is accomplished by the process of ________.

Correct Answer

verifed

verified

Tubulin is to microtubules as actin is to


A) ribosomes.
B) microfilaments.
C) intermediate filaments.
D) flagella.
E) microvilli.

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

Differentiate between transcription and translation.

Correct Answer

verifed

verified

In transcription, RNA polymerase uses th...

View Answer

The watery component of the cytoplasm is called


A) cytosol.
B) protoplasm.
C) extracellular fluid.
D) interstitial fluid.
E) a colloidal gel.

F) A) and D)
G) A) and E)

Correct Answer

verifed

verified

The plasma membrane includes


A) integral proteins.
B) glycolipids.
C) phospholipids.
D) all of the above
E) none of the above

F) A) and B)
G) C) and D)

Correct Answer

verifed

verified

Specific proteins are manufactured through the interaction of ________ and ________.


A) multiple enzymes; three types of RNA
B) multiple enzymes; two types of RNA
C) multiple carbohydrates; three types of DNA
D) multiple proteins; three types of DNA
E) multiple enzymes; three types of DNA

F) A) and B)
G) C) and D)

Correct Answer

verifed

verified

When activated, lysosomes function in


A) formation of new cell membranes.
B) synthesis of proteins.
C) digestion of foreign material.
D) synthesis of lipids.
E) cell division.

F) B) and D)
G) All of the above

Correct Answer

verifed

verified

A defense cell engulfing a bacterium illustrates


A) pinocytosis.
B) endocytosis.
C) exocytosis.
D) phagocytosis.
E) receptor-mediated endocytosis.

F) A) and C)
G) A) and E)

Correct Answer

verifed

verified

Special cells called ________ maintain tissues by unending cycles of cell division.

Correct Answer

verifed

verified

Microfilaments


A) are usually composed of myosin.
B) are hollow, filamentous structures.
C) anchor the cytoskeleton to integral proteins of the cell membrane.
D) interact with filaments composed of tubulin to produce muscle contractions.
E) are found in the cytoplasm radiating away from the centrosome.

F) B) and E)
G) All of the above

Correct Answer

verifed

verified

Functions of the plasma membrane include all of the following, except


A) separation of the cytoplasm from the extracellular fluid.
B) regulation of exchange of materials with the extracellular environment.
C) sensitivity to chemical changes in the extracellular fluid.
D) thermal insulation.
E) structural support.

F) C) and D)
G) B) and C)

Correct Answer

verifed

verified

What are the similarities between facilitated diffusion and active transport? B) What are the differences?

Correct Answer

verifed

verified

A) Both processes use carrier proteins a...

View Answer

Microfilaments


A) anchor the cytoskeleton to membrane proteins.
B) control the consistency of cytoplasm.
C) with myosin, produce cell movement.
D) all of the above
E) none of the above

F) A) and D)
G) D) and E)

Correct Answer

verifed

verified

Most of the ATP required to power cellular operations is produced in the


A) cytoplasm.
B) endoplasmic reticulum.
C) nucleus.
D) mitochondria.
E) cilia.

F) All of the above
G) C) and E)

Correct Answer

verifed

verified

Diffusion of a substance across the cell membrane is influenced by all of the following, except


A) hydrolysis of ATP.
B) the presence of the membrane channels.
C) the charge of the substance.
D) concentration gradient.
E) lipid solubility.

F) C) and D)
G) A) and E)

Correct Answer

verifed

verified

Each of the following is a function of smooth endoplasmic reticulum, except


A) synthesis of glycogen.
B) modification of protein.
C) synthesis of steroid hormones.
D) synthesis of triglycerides.
E) synthesis of cholesterol.

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Membrane proteins perform which of the following functions?


A) anchoring
B) receptors
C) recognition
D) channels
E) all of the above

F) A) and C)
G) A) and B)

Correct Answer

verifed

verified

Which of the following terms is not used to define the structure that separates the contents of a human cell from its surrounding medium?


A) cell wall
B) cell membrane
C) plasma membrane
D) organic membrane
E) All of the above are used for the definition given.

F) A) and C)
G) C) and D)

Correct Answer

verifed

verified

Showing 21 - 40 of 137

Related Exams

Show Answer