Cycling of Matter in Living Systems

Science 10 Unit C: cells, photosynthesis, and cellular respiration.

12 questions, free, marked as you go with a worked explanation on every one.

What this covers

• cycling of matter in cells
• cells

The questions

1. Which organelle is the site of photosynthesis in plant cells?
2. Which organelle is often called the 'powerhouse' of the cell?
3. The overall products of photosynthesis are glucose and:
4. Cellular respiration is best described as the process that:
5. A leaf takes in carbon dioxide for photosynthesis at a rate of 0.15 g per hour while it is in sunlight. On a summer day the leaf is in sunlight for 9 hours. How many grams of carbon dioxide does the leaf take in that day?
6. A red blood cell is placed in pure water and swells until it bursts. What has happened?
7. Water absorbed by a plant's roots travels up to the leaves through which tissue?
8. Which of these are inputs to photosynthesis? Select all that apply.
9. Which structure controls what substances enter and leave a cell?
10. Which organelle contains the genetic material of a cell?
11. Which structure is responsible for building proteins inside a cell?
12. Which structure, found in plant cells but not animal cells, provides rigid support?

Answer these free