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Marine Plants & Algae

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Both types of marine plants (submergent & emergent)

a)

have stipes & holdfasts

b)

provide habitats & produce oxygen

c)

have waxy coverings & live in meadows

d)

live at the shore & expel salt

2.

These are bioluminescent dinoflagellates

a)

Symbiodinium

b)

HAB's

c)

Sargassum

d)

Noctiluca

3.

These measure about 20 – 80 microns in size

a)

Dinoflagellates

b)

HAB's

c)

Symbiodinium

d)

Diatoms

4.

Which one lives inside coral polyps?

a)

Diatoms

b)

Symbiodinium

c)

Noctiluca

d)

red algae

5.

These measure about 30 – 150 microns in size

a)

Diatoms

b)

Sargassum

c)

brown algae

d)

Dinoflagellates

6.

Biologists believe these gave rise to land plants

a)

diatoms

b)

green algae

c)

mangroves

d)

kelp

7.

Cell walls of cellulose & the presence of chlorophyll a & b mean

a)

mangrove leaves have a waxy covering

b)

red algae can live deeper than any other algae

c)

land plants may have evolved from green algae

d)

seagrasses can withstand high salinity

8.

How a marine plant resists dehydration

a)

waxy leaf coverings

b)

holdfasts

c)

cell walls made of cellulose

d)

produce excess oxygen

9.

Holdfasts, stipes, blades & pneumatocysts are found

a)

on red algae

b)

on mangroves

c)

on Sargassum

d)

on kelp

10.

Diatoms are this % of photosynthetic biomass on Earth

a)

10

b)

15

c)

25

d)

50

11.

An emergent plant is

a)

red algae

b)

kelp

c)

sea lettuce

d)

mangroves

12.

Can live as deep as 656 ft.

a)

brown algae

b)

Sargassum

c)

red algae

d)

sea lettuce

13.

Causes toxic poisonings to fish & respiratory distress to people

a)

red algae

b)

Symbiodinium

c)

Noctiluca

d)

HAB's

14.

A drifting type of brown algae

a)

kelp

b)

Sargassum

c)

Noctiluca

d)

HAB's