Cellular Energy

Which molecule supplies the energy for cellular functions?

• ATP

• oxygen

• DNA

• water

Which of the following gases do plants take in during photosynthesis?

• hydrogen

• carbon dioxide

• oxygen

• carbon monoxide

Which molecule in plant cells first captures the radiant energy from sunlight?

• glucose

• chlorophyll

• carbon dioxide

• adenosine triphosphate

The first stage of photosynthesis in a chloroplast is

• light dependent

• glucose-driven

• temperature-dependent

• ATP-driven

In aerobic respiration, the Krebs cycle takes place in

• chloroplasts

• nuclei

• lysosomes

• mitochondria

Photosynthesis is a chemical reaction that converts

• light energy into chemical energy

• heat energy into mechanical energy

• light energy into electrical energy

• heat energy into electrical energy

the process of cellular respiration occurs in

• plant cells only

• animal cells only

• both plant and animal cells

• neither plant nor animal cells

Which statement best describes the process of respiration?

• Oxygen and sugar are used in the process that provides energy to cells; water and CO2 are waste products

• Water and sugar are used in the process that provides energy to cells; oxygen and CO2 are its waste products

• Oxygen and CO2 are used in the process that provides energy to cells; sugar and water are its waste products

• CO2 and sugar are used in the process that provides energy to cells; water and oxygen are its waste products

In the process of photosynthesis, green plants use energy from sunlight to make which product (to be used as food)?

• carbon dioxide (CO2)

• chlorophyll

• DNA

• glucose (sugar)

Plants use many gallons of water every day. Almost all of the water used by plants is absorbed through the

• leaves

• stomata

• roots

• stems