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A&P I > Chapter 4 Connect Questions > Flashcards

Chapter 4 Connect Questions Flashcards

1
Q

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

A

false

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2
Q

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

A

true

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3
Q

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

A

true

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4
Q

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

A

cytoskeleton

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5
Q

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

A

true

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6
Q

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

A

smooth endoplasmic reticulum

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7
Q

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

A

peroxisomes

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8
Q

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

A

false

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9
Q

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

A

mitochondrion

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10
Q

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

A

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.

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11
Q

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

A

terminal web

microtubules

intermediate filaments

microfilaments

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12
Q

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

A

cilia

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13
Q

what are all of the membranous organelles?

A

endoplasmic reticulum
nucleus
mitochondrion
Golgi

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14
Q

are ribosomes membranous organelles?

A

NO

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15
Q

what are the three basic components of the cell?

A

cytoplasm
nucleus
plasma membrane

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16
Q

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

A

false

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17
Q

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

A

true

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18
Q

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

A

The Golgi complex; rough ER

19
Q

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

A

protein synthesis

20
Q

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

A

flagella, cilia, microvilli

21
Q

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

A

true

22
Q

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

A

FALSE

23
Q

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

A

smooth endoplasmic reticulum

24
Q

label microaffilament

A

A

25
Q

Which letter represents a structure made of the protein tubulin?

A

C

26
Q

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

A

C

27
Q

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

A

A

28
Q

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

A

F

29
Q

what are ribosomes made up of?

A

proteins and RNA

30
Q

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

A

centrioles, microtubules

31
Q

T/F

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

A

False

32
Q

Which organelle is most active in causing programmed cell death?

A

Lysosome

33
Q

T/F

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

A

False

34
Q

What makes cell crawling possible?

A

The elongation and shortening of microfilaments.

35
Q

T/F

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

A

True

36
Q

What does the Golgi complex do?

A

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

37
Q

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

A

Mitochondria

38
Q

What organlles are considered an inclusion?

A

Fat droplet

Bacterium

Glycogen granule

Dust particle

39
Q

Is a lysosome considered an inclusion?

A

No!

40
Q

What does kinesin do?

A

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

41
Q

Features of microvilli

A

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

42
Q

What organelles are involved in protein synthesis?

A

The nucleus

Ribosomes

Rough ER

Golgi Complex

43
Q

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

A

Smooth ER

A&P I (1 decks)

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