Photosynthesis and Respiration

Which molecule supplies the energy for cellular functions?

• ATP

• DNA

• oxygen

• water

Which of the following gases do plants use in photosynthesis?

• hydrogen

• oxygen

• carbon dioxide

• carbon monoxide

Which of the following is broken down in the body to release energy?

• sugar

• water

• salt

• oxygen

Which of the following is produced when sugar is digested in an animal cell?

• carbon dioxide

• oxygen

• chlorophyll

• sunlight

During photosynthesis, what is the source of the carbon in the sugar?

• carbon dioxide in the air

• carbon monoxide in the air

• carbon particles in the soil

• carbon particles in water

Which of the following processes allows the cells of the organism to use carbon from the environment?

• mitosis

• transpiration

• fertilization

• photosynthesis

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

• glucose

• carbon dioxide

• chlorophyll

• ATP

From earth's atmosphere, carbon dioxide is used by plants, algae, and cyanobacteria during the process of

• photosynthesis

• decomposition

• respiration

• nitrogen fixation

Which statement about green plants is true?

• most green plants do not need food

• most green plants take in food through their roots

• most green plants take in foo through their leaves

• Most green plants manufacture their own food

Through cell respiration, plants get energy from glucose. The energy stored in glucose originally came from

• plants

• the sun

• animals

• geothermal sources