Photosynthesis and Respiration - preassessment

How do organisms get the energy they need?

• Plants get energy from fertilizers, and animals get energy by drinking water.

• Plants get energy from glucose produced in the soil, and animals get energy directly from sunlight.

• Plants do not require energy because they do not move, and animals get energy by performing exercise.

• Plants break down the glucose they produced in photosynthesis, and animals get energy from eating other organisms.

What is the food that plants produce during photosynthesis?

• glucose

• chlorophyll

• chloroplasts

• carbon dioxide

What do animals do with the carbon dioxide produced in their cells during cellular respiration?

• store it for later use

• reuse it during photosynthesis

• exhale it in the breathing process

• combine it with water to make sugar

Green plants produce their own food during photosynthesis. Which of these statements about photosynthesis is true?

• Water is one product of photosynthesis.

• Oxygen is one product of photosynthesis.

• Chlorophyll is one product of photosynthesis.

• Carbon dioxide is one product of photosynthesis.

All cells need energy to carry out life activities. The diagram below shows one of the processes cells perform to obtain chemical energy.

Glucose + Oxygen --> Carbon dioxide + Water + ATP

What process is shown and what is the role of the final product of this process?

• This process is photosynthesis, which creates the water that cells need to create oxygen.

• This process is photosynthesis, which creates the ATP that absorbs radiant energy from the sun.

• This process is cellular respiration, which creates ATP, which is a molecule that supplies energy to fuel cell activities.

• This process is cellular respiration, which creates the carbon dioxide cells need to generate energy to fuel cell activities.