Chapter 2 Flashcards


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1

Hormones are secreted by

phagocytosis.

exocytosis.

pinocytosis.

osmosis.

exocytosis.

2

Which of the following statements about the rough endoplasmic reticulum is false?

It consists of stacked envelopes called cisternae.

It makes the digestive enzymes contained in the lysosomes.

It makes the integral proteins of the cell membrane.

It stores lipids as inclusions.

it stores lipids as inclusions

3

Of the following, the only organelle that has a double membrane structure is the

Golgi apparatus.

endoplasmic reticulum.

mitochondrion.

centriole.

mitochondrion

4

This organelle is characterized by folded membranes called cristae.

peroxisome

lysosome

Golgi apparatus

rough endoplasmic reticulum

mitochondria

None of the above

mitochondria

5

Which type of endocytosis ingests the most specific type of molecule?

receptor-mediated endocytosis

phagocytosis

pinocytosis

fluid-phase endocytosis

receptor-mediated endocytosis

6

Which of the following statements about integral proteins in the plasma membrane is false?

Some attach to the glycocalyx.

They are more abundant by volume than the membrane phospholipids.

They determine which molecules are transported through the membrane.

Most extend all the way through the membrane.

they are more abundant by volume than the membrane phospholipids.

7

This membranous organelle is the site of protein synthesis for proteins that are secreted by the cell.

a. golgi apparatus

b. lysosome

c. rough ER

d. mitochondria

C

8

When a phagocytic white blood cell ingests a foreign bacterial cell, the vesicle fuses with this organelle.

a. golgi apparatus
b. lysosome
c. rough ER
d. mitochondria

B

9

This organelle primarily modifies products from the rough ER, and it resembles a stack of hollow saucers, one cupped inside the next.

a. golgi apparatus
b. lysosome
c. rough ER
d. mitochondria

A

10

This organelle produces ATP molecules

a. golgi apparatus
b. lysosome
c. rough ER
d. mitochondria

D

11

This organelle has both a cis and a trans face

a. golgi apparatus
b. lysosome
c. rough ER
d. mitochondria

A

12

These organelles are often called the "demolition crew" of the cell.

a. golgi apparatus
b. lysosome
c. rough ER
d. mitochondria

B

13

Materials that are to be exocytosed by cells are enclosed in vesicles synthesized by the

mitochondrion.

nucleosome.

Golgi apparatus.

ribosome.

Golgi apparatus.

14

The plasma membrane is composed of all of the following except

tubulin protein.

phospholipids.

cholesterol.

glycoproteins.

tubulin protein.

15

The plasma membrane is important for all the following reasons except

it separates the ECF from the ICF.

it is an important site for DNA transcription.

it acts as a site for cell-to-cell interaction and recognition.

it determines what substances enter and exit the cell.

it is an important site for DNA transcription

16
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Which letter indicates a nucleosome?

C

17
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Which letter indicates the chromatid?

D

18
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Which letter indicates histones?

B

19
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Which letter indicates the mitochondrion?

B

20
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Which letter indicates the Golgi apparatus?

E