Grade 7 Photosynthesis and Cell Biology

What are the products of photosynthesis?

• carbon dioxide and water

• oxygen and water

• carbon dioxide and glucose

• oxygen and glucose

What happens during respiration?

• Oxygen is released into the air.

• Glucose is broken down, releasing energy.

• Carbohydrates are released into the bloodstream.

• Water and carbon dioxide are converted into energy.

Where does the energy for plants to perform photosynthesis come from?

• glucose metabolism

• carbon dioxide

• sunlight

• cellular respiration

What is the chemical equation for photosynthesis?

• C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O

• 6CO2 + 6 H2O --> C6H12O6 + 6 O2

• C6H12O6 + O2 --> CO2 + H2O

• CO2 + H2O --> C6H12O6 + O2

The main source of energy for all life comes from ________.

• the Moon

• the sand

• the Sun

• the Earth

Every time you exhale (breathe out), your body is getting rid of _______________.

• carbon dioxide

• oxygen

• protein

• glucose

Plants make their own food using energy that comes from the _______.

• Moon

• stars

• sun

• Earth

Almost all living things depend on the process of _______ to supply them with the energy they need.

• respiration

• photosynthesis

• digestion

• fermentation

A cell’s nucleus divides to form two identical nuclei during the stage of the cell cycle known as _______.

• cytokinesis

• meiosis

• mitosis

• interphase

The final stage of the cell cycle, during which the cytoplasm divides, is called _______.

• mitosis

• cytokinesis

• interphase

• prophase