A&P - Chapter 5 (Part 3)

Question 1

What does the cytoplasm do? (2)

Answer 1

1. The cells supporting framework

2. Allows movement of the cell

Question 2

What are 2 extensions of the cytoplasm?

Answer 2

1. Cilia

2. Flagellum

Question 3

Cilia

Answer 3

Fine hair like extensions that allow movement of substances

- eg) mucus

Question 4

How does cilia move?

Answer 4

In a wave like fashion

Question 5

Where do you find cilia? (3)

Answer 5

1. Lungs
2. Nose
3. Trachea

Question 6

What can paralyze cilia? (2)

Answer 6

1. Smoking
2. Genetics
   - cystic fibrosis

Question 7

Flagellum

Answer 7

Single projection extending from cell surfaces

Question 8

What is bigger, cilia or flagellum?

Answer 8

Flagellum

Question 9

What movement do flagellum make?

Answer 9

Propulsive movements

Question 10

What is an example of flagellum?

Answer 10

Sperm

Question 11

What do microvilli cover? Why is it important?

Answer 11

1. Epithelial cells

2. Absorption is important there

Question 12

What is an example of a good place to have microvilli?

Answer 12

Small intestines

Question 13

What do microvilli do? (3)

Answer 13

1. They increase surface area to get better absorption
2. Provide structure
3. Aid in movement

Question 14

What happens if you no longer have microvilli?

Answer 14

You get diarrhea

Question 15

How can you potentially lose microvilli?

Answer 15

Food poisoning

Question 16

What does the nucleus do? (3)

Answer 16

1. It controls the cell
2. Control every organelle in the cytoplasm
3. Controls cell reproduction

Question 17

What does the nucleus contain?

Answer 17

The genetic code

- DNA

Question 18

What does the DNA from the nucleus determine? (2)

Answer 18

1. Structure

2. Function

Question 19

What are the 3 components of the nucleus?

Answer 19

1. Nuclear membrane
2. Nucleolus
3. Chromatin granules

Question 20

How many layers are in the nucleus?

Answer 20

2

Question 21

Chromatin granules

Answer 21

Loosely packed DNA

Question 22

What do cell connections do?

Answer 22

Hold the cell together

Question 23

What do some cell connections do?

Answer 23

Facilitate communication

Question 24

What are 3 types of direct cell connections?

Answer 24

1. Desmosomes
2. Gap junctions
3. Tight junctions

Question 25

Desmosomes

Answer 25

Form links between 2 cells

Question 26

Gap junctions

Answer 26

Use channels to pass things through

Question 27

Tight junctions

Answer 27

Makes 2 cells very close to each other

• water tight seal
• nothing passes them

Question 28

What are tight junctions good for? (2)

Answer 28

1. Skin

2. Kidneys