3.1 Autotrophs and Heterotrophs

Question 1

What are autotrophs? What are their 2 types?

Answer 1

• Make their own food/organic compounds using non-living resources.
• Photosynthetic and chemosynthetic

Question 2

What are photosynthetic autotrophs?

Answer 2

Plants and photosynthetic algae, which use energy from sunlight to produce glucose (food).

Question 3

What are chemosynthetic autotrophs?

Answer 3

Prokaryotes, which obtain energy inorganic chemical reactions.

Question 4

What are heterotrophs?

Answer 4

• Herbivores, saprotrophic heterotrophs, carnivores, insectivores, and omnivores.
• Consume other organisms or their products since they can’t make their own food.

Question 5

What do omnivores eat?

Answer 5

Both plants and animals

Question 6

What are saprotrophic heterotrophs

Answer 6

Organisms that digest food outside themselves then absorb the digested material
Eg. Fungi