AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement about the difference between autotrophs and heterotrophs is true?
A
Autotrophs transform radiant energy into chemical energy, but heterotrophs can’t.
B
Autotrophs take in only oxygen, but heterotrophs take in both oxygen and carbon dioxide.
C
Autotrophs have two different electron transport systems, but heterotrophs have none.
D
Autotrophs don’t have a Calvin cycle, but heterotrophs do.
Explanation: 

Detailed explanation-1: -Answer. Answer: A) Autotrophs transform radiant energy into chemical energy, but heterotrophs can’t. Autotrophs are producers and can produce their own food, usually using sunlight. Heterotrophs cannot produce their own food and depend on autotrophs for food.

Detailed explanation-2: -So, the correct option is, ‘Autotrophs, but not heterotrophs, can nourish themselves beginning with nutrients that are entirely inorganic’.

Detailed explanation-3: -Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.

Detailed explanation-4: -Autotrophic organisms or primary producers hold the key to changing the radiant energy from the sun into a usable form of chemical energy that other heterotrophic organisms (including ourselves) can use.

Detailed explanation-5: -The Differences Between Autotrophic Nutrition and Heterotrophic Nutrition is that autotrophs make their own food while Heterotrophs depend on autotrophs. Heterotrophs are living things that cannot make their own food and rely on autotrophs for nutrition, whereas autotrophs perform photosynthesis to make their own food.

There is 1 question to complete.