Chapter 4 Connect Questions

Question 1

t/f If a cell doubled in diameter, it would have twice as much cytoplasm to maintain.

Answer 1

false

Question 2

t/f Both the nucleus and the mitochondrion are surrounded by a two-layer membrane.

Answer 2

true

Question 3

t/f Kinesin can move along cytoskeletal components made of tubulin.

Answer 3

true

Question 4

Which of the following gives a cell structural support, determines the shape of a cell, and directs the movement of substances through a cell?

Answer 4

cytoskeleton

Question 5

t/f Microvilli are more related to actin than to tubulin.

Answer 5

true

Question 6

Which organelle synthesizes steroids in the ovary and stores calcium in muscle cells?

Answer 6

smooth endoplasmic reticulum

Question 7

Which of the following decomposes fatty acids, and detoxifies alcohol, free radicals, and drugs?

Answer 7

peroxisomes

Question 8

t/f Secretory vesicles can be transported along intermediate filaments from the Golgi complex to the cell membrane.

Answer 8

false

Question 9

Which of the following is a double-membraned organelle consisting of a matrix and cristae?

Answer 9

mitochondrion

Question 10

what are all of the tenets of the modern cell theory? (4)

Answer 10

An organism’s structure and all of its functions are ultimately due to the activities of its cells.

The cell is the basic structural and functional unit of life.

All cells come only from preexisting cells.

All organisms are composed of cells and cell products.

Question 11

Which of the following are associated with the composition of the cytoskeleton?

Answer 11

terminal web

microtubules

intermediate filaments

microfilaments

Question 12

Which of the following is not associated with the composition of the cytoskeleton?

Answer 12

cilia

Question 13

what are all of the membranous organelles?

Answer 13

endoplasmic reticulum
nucleus
mitochondrion
Golgi

Question 14

are ribosomes membranous organelles?

Answer 14

NO

Question 15

what are the three basic components of the cell?

Answer 15

cytoplasm
nucleus
plasma membrane

Question 16

t/f The Golgi complex makes peroxisomes, but not lysosomes.

Answer 16

false

Question 17

t/f Dynein moves along intermediate filaments toward the minus end of the filaments.

Answer 17

true

Question 18

__________ synthesize(s) carbohydrates and put(s) finishing touches on proteins synthesized at __________.

Answer 18

The Golgi complex; rough ER

Question 19

Which function would immediately cease if the ribosomes of a cell were destroyed?

Answer 19

protein synthesis

Question 20

__________ provide motility to a sperm cell, __________ act as sensory “antennae” in many cells, and ____________ increase a cell’s surface area.

Answer 20

flagella, cilia, microvilli

Question 21

t/f Actin is found in constriction bands, which pinches a cell in two during cell division.

Answer 21

true

Question 22

Myosin motor molecules move along microtubules toward the plus end of the tubule.

Answer 22

FALSE

Question 23

Among other functions, hepatocytes (liver cells) are specialized for detoxifying drugs or other chemicals. Hepatocytes have large amounts of __________.

Answer 23

smooth endoplasmic reticulum

Question 24

label microaffilament

Answer 24

A

Question 25

Which letter represents a structure made of the protein tubulin?

Answer 25

C

Question 26

Which letter represents a structure that is used to help form cilia and flagella?

Answer 26

C

Question 27

White blood cells use which organelle to break down bacteria they have ingested?

Answer 27

A

Question 28

Spermatozoa require a lot of ATP in order to power their flagellum. Because of this, which organelle do they contain a large number of?

Answer 28

F

Question 29

what are ribosomes made up of?

Answer 29

proteins and RNA

Question 30

\_\_\_\_\_\_\_\_\_\_ play an important role in cell division, and are made of \_\_\_\_\_\_\_\_\_\_.

Answer 30

centrioles, microtubules

Question 31

T/F Microvilli and cilia differ in their function, but have the same internal structure.

Answer 31

False

Question 32

Which organelle is most active in causing programmed cell death?

Answer 32

Lysosome

Question 33

T/F A 9+2 arrangement of cytoskeletal components is found in spindle fibers, which are made of microtubules.

Answer 33

False

Question 34

What makes cell crawling possible?

Answer 34

The elongation and shortening of microfilaments.

Question 35

T/F A crystal of calcium phosphate in the cytoplasm of a cell should be classified as an inclusion.

Answer 35

True

Question 36

What does the Golgi complex do?

Answer 36

It is an organelle that sorts, cuts, splices, and packages newly formed proteins into membrane-bound vesicles

Question 37

Muscle cells contain numerous __________ to serve their high demand for ATP.

Answer 37

Mitochondria

Question 38

What organlles are considered an inclusion?

Answer 38

Fat droplet Bacterium Glycogen granule Dust particle

Question 39

Is a lysosome considered an inclusion?

Answer 39

No!

Question 40

What does kinesin do?

Answer 40

It moves toward the plus end of a certain type of cytoskeletal component.

Question 41

Features of microvilli

Answer 41

They are not permanent cell structures, but may continually form, retract, and form again.

Question 42

What organelles are involved in protein synthesis?

Answer 42

The nucleus Ribosomes Rough ER Golgi Complex

Question 43

Which of the following organelles is not involved in protein synthesis?

Answer 43

Smooth ER