Lab Quiz 1

Question 1

Binary Fission

Answer 1

Asexual reproduction.
Separation of a parent cell into two daughter cells.

Question 2

Conjugation

Answer 2

Sexual Reproduction.
Transferrence of genetic material.

Question 3

Adv/Dis of Sexual Reproduction

Answer 3

‘Faster’ evolution.
Greater variation.

Question 4

Adv/Dis of Asexual Reproduction

Answer 4

Metabolically ‘cheaper’.

Question 5

How do Radiolarians / Foraminiferans / Amoebas catch their prey?

Answer 5

Engulf their prey with their pseudopods.

Question 6

Define Mixotraphic / Give Example

Answer 6

Is heterotrophic and autotrophic.
Eugelena.

Question 7

Which heterotrophic Protista gave rise to primitive animals? / What are those animals?

Answer 7

Choanoflagellates
Sponges

Question 8

Which autotrophic Protista gave rise to primitive plants? / What are those plants?

Answer 8

Charophytes
?????

Question 9

Which Protista has a CaCO3 exoskeleton?

Answer 9

Foraminiferans.

Question 10

Which Protista has a silica exoskeleton?

Answer 10

Radiolarians.

Question 11

What % atmospheric O2 is due to protistas?

Answer 11

50%

Question 12

Define ‘Dead Zone’. What is the cause / relation to algal growth?

Answer 12

An excess of nutrients, which leads to rapid algal growth, blocking light and oxygen absorption for other organisms.

Question 13

Which Protista use cilia / flagella / pseudopodia?

Answer 13

Cilia:
- Paramecium
Flagella:
- Euglena
- Kinetoplastida
Pseudopodia:
- Foraminiferans
- Radiolarians
- Amoeba

Question 14

Which Protista is the most interesting?

Answer 14

Definitely Radiolarians