Match the numbered terms to the descriptions that follow. For each item, choose all appropriate terms, but only appropriate terms.
1. autotroph
2. heterotroph
3. phototroph
4. chemotroph
-an organism that relies on photons to excite electrons within its membranes
A)1 only
B)3 only
C)1 and 3
D)2 and 4
E)1, 3, and 4

Question

Quizplus · Accepted Answer

Phototrophs rely on photons to excite electrons within their membranes, and therefore need to be able to photosynthesize. Autotrophs are organisms that create their own food through processes like photosynthesis, while heterotrophs need to consume other organisms for food. Chemotrophs are organisms that obtain energy from chemical reactions, like those that occur during respiration. None of the descriptions match the definition given in the question except for phototroph, so only choice B is appropriate.

Match the Numbered Terms to the Descriptions That Follow