Exam 7: Capturing Solar Energy: Photosynthesis

Consider the scenario of two scientists conducting an experiment to track what happens to the carbon atoms from CO2 molecules used during the Calvin cycle of photosynthesis. They add a radioactive "tag" to the carbon atoms of the CO2 reactants and then collect the products following the reactions. They analyze the products for their level of radioactivity. Which product(s)would you expect to be radioactive?

Imagine you are conducting a photosynthesis experiment on a plant in the lab. You block any light from reaching the plant. Explain the specific effect this will have on the light reactions.

What is the correct order for the reactions of the Calvin cycle?

Glucose synthesis during photosynthesis requires that:

The products of photosynthesis are:

In C3 photosynthesis, what fixes the carbon?

During the Calvin cycle, the combination of oxygen with RuBP rather than carbon dioxide is called ________.

Before photosynthesis evolved, ________ was rare in Earth's atmosphere.

Which process of photosynthesis is linked to the production of ATP?

Where is glucose synthesized during photosynthesis?

How are the light reactions and the Calvin cycle related to each other?

The energy source in photosynthesis is:

Many plants have evolved leaves that have adjustable pores, called ________, which allow for gas exchange and water loss.

Based on the information provided in this figure, where does the oxygen gas produced by a leaf come from?

Energy is passed around different chlorophyll molecules until it reaches a specific chlorophyll molecule called the:

The light reactions of photosynthesis result in which of the following?

What structural feature of a leaf enables it to obtain CO2 from the air?

C3 plants are adapted to ________ environmental conditions, whereas C4 plants are adapted to ________ conditions.

Carotenoid pigments are found in the:

Why does photorespiration reduce photosynthesis efficiency?