Macroalgae

Which products contains seaweed?

• cosmetics

• dairy products - icecream, processed cheeses, yogurts

• fertilizers

• toothpaste, shampoos, etc.

• All of these

Macroalgae/seaweeds can be best differentiated from true plants because macroalgae/seaweeds:

• Have no true roots, leaves, or stems

• Are mostly unicellular

• Are photosynthetic

• Have no chlorophyll

• Are prokaryotic

Tags

NGSS.MS-LS4-2

Kelp are a type of __ algae.

• green

• brown

• red

• blue

the stem-like portion of then of seaweeds

• thallus

• blade

• stipe

• pneumatocyst

• holdfast

A is the __.

• thallus

• holdfast

• bladder/pneumatocyst

• blade

• stipe

Tags

NGSS.MS-LS2-3

B is the __.

• thallus

• holdfast

• bladder/pneumatocyst

• blade

• stipe

Largest of the algae. The_______ grows to up to _______.

• bull kelp, 6'

• sea lettuce, 100'

• giant kelp, 300'

• Japanese kelp, 6'

the root-like portion of the seaweed

• thallus

• pneumatocyst

• stipe

• holdfast

• blades

Which of the following is a common use of macroalgae in the food industry?

• As a thickening agent in soups and sauces

• As a primary ingredient in bread

• As a sweetener in desserts

• As a substitute for salt in snacks

What is the primary pigment found in brown macroalgae?

• Chlorophyll a

• Phycocyanin

• Fucoxanthin

• Phycoerythrin