Ecosystems revision (yr ten)

Question 1

What structure allows plant cells to photosynthesize and how is this achieved?

Answer 1

Photosynthesis occurs in chloroplasts, cell walls allow plants to be robust and erect, and vacuoles assist govern how cells manage water and other substances.

Question 2

What would happen if producers were absent from an ecosystem?

Answer 2

The absence of producers would result in the collapse of the whole food system.

Question 3

Describe the relationship between cellular respiration and photosynthesis that occurs within a single plant cell.

Answer 3

Carbon dioxide and water are converted into oxygen and glucose. The plant consumes glucose as food and produces oxygen as a byproduct.

Question 4

Aboriginal and Torres Strait Islander peoples learned to harness the power of bushfires. What were some purposes they used it for?

Answer 4

Keep a vegetation pattern to stimulate new growth and attract wildlife for hunting. Encourage the growth of important food plants for cooking, warming, signaling, and spiritual purposes.

Question 5

Name five terms we’ve learnt in ecosystems

Answer 5

Parasitism, ecosystems, predator, photosynthesis and cellular respiration.