Cells

Question 0

Define cell membrane

Answer 0

The outer covering of the cell

Question 1

Define cell

Answer 1

Smallest living units in the body

Question 2

What are functions of the cell membrane?

Answer 2

Physical isolation, regulation of exchange with the environment, structural support, maintains homeostasis

Question 3

The cell membrane is a

Answer 3

Selectively permeable or semipermeable membrane

Question 4

The cell membrane contains?

Answer 4

Phospholipids, proteins, carbohydrates

Question 5

Membrane proteins can functions as:

Answer 5

Receptors, channels, carriers, enzymes, anchors or identifiers

Question 6

Proteins contain 20 different what?

Answer 6

Amino acids which are building blocks

Question 7

Carbohydrates are used…

Answer 7

In production of fats. When the supple of lipids exceeds the demand for energy the excess is stored in fat deposits

Question 8

Nucleus is?

Answer 8

The control center for genetic information and protein synthesis

Question 9

Cytoplasm…

Answer 9

Surrounds the nucleus

Question 10

Mitochondria is

Answer 10

The power plant of the cell

Question 11

Ribosomes…

Answer 11

Manufacture proteins

Question 12

What is phagocytosis

Answer 12

Cell eating that produces vesicles containing solid objects that may be as large as the cell itself

Question 13

Passive transport

Answer 13

Moves ions or molecules across the cell membrane. Requires no energy

Question 14

Water and dissolved substances…

Answer 14

Move without additional energy

Question 15

Active transport

Answer 15

Requires Energy

Question 16

Passive transport mechanisms are

Answer 16

Diffusion, facilitated diffusion, osmosis, and filtration

Question 17

Diffusion is?

Answer 17

The most common transport mechanism. It’s the movement of higher concentration to lower

Question 18

Facilitated diffusion

Answer 18

Is helped across be membrane by a molecule within the membrane. The helper molecule increases the rate of diffusion

Question 19

Water diffuses from an

Answer 19

Area with more water to an area with less

Question 20

Filtration is

Answer 20

High pressure to an area of low pressure

Question 21

What is endocytosis

Answer 21

Taking in or the ingestion of a substance by the cell membrane

Question 22

Phagocytosis is

Answer 22

Cellular eating

Question 23

Pinocytosis is

Answer 23

Cellular drinking

Question 24

What are benign tumors?

Answer 24

Abnormal cells confined in a connective tissue capsule

Question 25

What is a malignant tumor

Answer 25

Spreads through the organ or system

Question 26

Define atrophy

Answer 26

Decrease in cell size resulting from a decreased workload