Structure
What is the equivalent of the leaf on algae?
Blade
The sun - they photosynthesize
What is the common name for algae?
Seaweed
Chlorophyta is
Green Algae
True or False- Algae is a plant
False- Algae is a non-flowering plant like organism
What is the main portion of an algae is called?
Hint: "Stem"
Stipe
Where are algaes found?
Shallow marine environments
Shallow being within the photic zone to allow photosynthesis
Why is algae used in food products?
It acts as a natural thickening agent
What make algaes their different colors?
Pigments
True or false: Algae can survive outside of water?
False, algaes lives and grows in marine ecosystems
The purpose of the holdfast is...
To act as roots and allow the algae to anchor on substrates including rocks and the ocean floor
What is photosynthesis?
How do algaes photosynthesize?
Photosynthesis is the process by which water and carbon dioxide are taken up and converted to oxygen and sugars using sunlight.
They use their chloroplasts. Chlorophyll a acts as a photoreceptor- absorbing light energy from the sun.
Which of the following is made with algae:
a. Shampoo
b. Dog Food
c. Jet Fuel
d. Baby Food
e. All of the above
e. All of the above
Rhodophyta is
Red Algae
True or False: Some algaes reproduce through both cell division and release of spores in various stages of their life cycle?
True
What is the gas bladder used for?
To keep algaes afloat/near the surface to continue to allow photosynthesis
How do algaes reproduce?
Spores and/or cell division
Why is algae not considered a plant?
It lacks leaves, stems, and roots
Phaeophyta is
Brown Algae
Chlorophyll b is what allows the green color
What is the entire piece of algae called?
Frond
What causes an algal bloom?
Kelp is what kind of algae?
Brown Algae
True- algal blooms result in reduced nutrient availability, limited cascading sunlight, and toxins can cause mortality in all marine life (including fish, dolphins, turtles, whales, sharks, etc.)