Chapter 4 Test

Name the two reactants in photosynthesis?

Carbon dioxide and water

What happens to the sugars that are made during photosynthesis?

They can be used for cellular respiration.

Which of the following directly directly provides the energy needed for cell functions? a. A phosphate group is removed from ATP b. ADP loses a phosphate group c. Electrons are passed to proteins d. Oxygen picks up electron

a. A phosphate group is removed from ATP.

Which of the following is a product of the Krebs Cycle? a. carbon dioxide b. oxygen c. lactic acid d. glucose

a. carbon dioxide

What molecule carries chemical energy that cells use for their functions?

ATP

Which molecules, found in the food we eat, is most commonly broken down to make ATP?

carbohydrates

Which process is best represented by the chemical equation sugars + oxygen --> ATP, Carbon dioxide, and water?

cellular respirations

In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place?

fermentation

Before cellular respiration, glucose must be broken down by the what process?

glycolysis

The part of cellular respiration that needs oxygen takes place inside the __________________.

mitochondria

An electron transport chain that produces ATP is part of both the cellular respiration process and ____________.

photosynthesis

Chemosynthesis is a process through which some organisms use energy from chemicals in their environment to build sugars in the absence of _________.

sunlight

Which process do water molecules enter the thylakoids to take part in?

the Calvin Cycle

Where in plant cells are the energy-absorbing molecules for photosynthesis located?

thylakoids