Interactions within Ecosystems (Sec 2 Sci) (Part II)

Which of the following describes "respiration"?

• Takes place in cells

• Takes place in special organs

• A process that involves the release of energy from food

• A process of gaseous exchange

Photosynthesis only takes place in the day while respiration only takes place at night.

• True

• False

Respiration only occurs at night.

It does not take place in the day since photosynthesis is already occuring.

• True

• False

Both respiration and photosynthesis can occur when there is light.

• True

• False

The process where oxygen or carbon dioxide enters/exits the stomata is called diffusion.

• True

• False

Don't worry, you will learn more about diffusion in the next chapter! :)

• Ok!

• Sure!

• No problem!

Which of the following is the correct word equation for photosynthesis?

• glucose + oxygen  $\rightarrow$  carbon dioxide + energy

• glucose + oxygen  $\rightarrow$  carbon dioxide + water + energy

• carbon dioxide + water $\rightarrow$  glucose + oxygen

• carbon dioxide + glucose $\rightarrow$  water + oxygen

Which of the following is the correct word equation for respiration?

• glucose + oxygen  $\rightarrow$  carbon dioxide + energy

• glucose + oxygen  $\rightarrow$  carbon dioxide + water + energy

• carbon dioxide + water $\rightarrow$  glucose + oxygen

• carbon dioxide + glucose $\rightarrow$  water + oxygen

Which of the following is true about decomposers?

• They feed on and break down dead plants and animals into carbon dioxide and minerals.

• They prevent the earth from being covered in dead matter and animal waste.

• They enrich the soil with nutrients.

Which of the following is not recycled in the carbon cycle?

• carbon dioxide

• minerals

• heat