Chapter 22 - Protista (Amoeba)

Question 1

What kingdom do amoeba belong to ?

Answer 1

Protista

Question 2

Where are amoeba found?

Answer 2

Freshwater ponds and streams (some found in sea water)

Question 3

Amoeba consist of _____

Answer 3

One cell only (about 0.1mm)

Question 4

How do amoeba attain sustenance? :>

Answer 4

Heterotrophic and omnivorous

Question 5

What is the living material in the amoeba called?

Answer 5

Protoplasm

Question 6

How do amoeba move?

Answer 6

By continuously changing their shape

Question 7

Outer cytoplasm?

Answer 7

Ectoplasm, clear and relatively stiff

Question 8

Inner cytoplasm?

Answer 8

Endoplasm
More liquid than ectoplasm 
Contains food vacuoles
Contains fat droplets
Contains crystals of waste products

Question 9

Function of the flexible cell membrane

Answer 9

• keeps cell contents in place

- gasses diffuse in and out

Question 10

Function of the nucleus in amoeba

Answer 10

Controls the cell

Question 11

Function of food vacuoles

Answer 11

• secretes acids and enzymes to kill and digest its prey

- digested material is absorbed from the food vacuoles into the cytoplasm

Question 12

Function of the pseudopodia

Answer 12

• extend to move amoeba

- engulf the prey

Question 13

Function of the cytoplasm

Answer 13

-more concentrated than its environment, causing water to enter amoeba by osmosis

Question 14

Contractile vacuole

Answer 14

• collects water in amoeba
• expands
• touches the cell membrane
• bursts to expel the water
• responsible for osmoregulation