Worksheet ch.4 Flashcards


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1

Resolution of a microscope refers to:

The sharpness or clarity of an image

2

The detailed structure of a chloroplast can be seen with the best resolution by using:

Transmission electron microscopy

3

In an animal cell fractionation procedure, one of the last pellets from the series of centrifugations would most likely contain

ribosomes

4

Which of the following is not found in a prokaryotic cell

mitochondria

5

The cells of an ant and an elephant are, on average, the same size; an elephant just has more cells. What is the main advantage of small cell size?

A small cell has a larger surface area relative to cytoplasmic volume, facilitating sufficient exchange of materials.

6

Proteins that function within the cytosol are generally synthesized

By free ribosomes

7

The pores in the nuclear envelope provide for the movement of

All of the above

8

A fluorescent green tag is attached to a protein being synthesized and inserted into an area of rough ER membrane. Which of the following is a possible route for that protein to follow?

Rough ER to transport vesicle to Golgi to vesicle to plasma membrane to food vacuole

9

A growing plant cell elongated primarily by

Taking up water into its central vacuole

10

Which of the following is not a similarity among nuclei, chloroplast, and mitochondria

They are derived from the endoplasmic reticulum system

11

Which of the following is a major component of the plasma membrane of a plant cell

Phospholipids

12

Microtubules are components of or associated with all of the following except

amoeboid movement

13

Which of the following characteristics are shared by cristae of mitochondria, thykaloids, and microvilli

Have large surface area of membrane that enhances their particular function.

14

The innermost portion of the cell wall of a plant cell specialized for support is the

Secondary cell wall

15

plasmodesmata in plant cells are similar in function to

Gap junctions

16

Which of the following structures are involved in the relay of external information into a cell

All of the above

17

Which of the following is incorrectly paired with its function

lysosome- food sac formed by phagocytosis

18

In which cells would you expect to find the most tight junctions

Epithelial cells lining the digestive tract

19

In which ells would you expect to find the most lysosomes

Macrophages that engulf bacteria

20

In which cells would you expect to find the most endoplasmic reticulum

Ovarian cells that produce estrogen

21

In which cells would you expect to find the most bound ribosomes

Pancreatic cells that manufacture digestive enzymes

22

In which cells would you expect to find the most mitochondria

Muscle cells in the thigh muscle of a runner