The PH in the Stroma of the Chloroplast Should Be

question 9

Multiple Choice

The pH in the stroma of the chloroplast should be _____ compared with the thylakoid lumen due to the _____ concentration of protons in the thylakoid lumen.

• A)higher; higher
• B)lower; higher
• C)higher; lower
• D)lower; lower

---

Definitions:

Conditioned Response

A learned reaction to a previously neutral stimulus due to repeated association with an unconditioned stimulus.

Unconditioned Response

An automatic, natural reaction to a stimulus that occurs without previous conditioning or learning.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally and automatically triggers a response without any prior learning.