TEST : CHAPTER 1-4 BIOLOGY KSSM FORM 5

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water, and releasing oxygen as a byproduct.

Front

What factors affect the rate of photosynthesis?

Back

The rate of photosynthesis is affected by light intensity, carbon dioxide concentration, temperature, and water availability.

Front

What happens to the rate of photosynthesis when light intensity increases?

Back

The rate of photosynthesis generally increases with higher light intensity, up to a certain point, after which it may plateau.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is the green pigment in plants that absorbs light energy, primarily from the sun, which is essential for the photosynthesis process.

Front

What is the significance of stomata in plants?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange; they enable the uptake of carbon dioxide and the release of oxygen.

Front

What is the difference between autotrophic and heterotrophic organisms?

Back

Autotrophic organisms can produce their own food through photosynthesis or chemosynthesis, while heterotrophic organisms obtain their food by consuming other organisms.

Front

What is the function of xylem in plants?

Back

Xylem is a type of tissue in vascular plants that transports water and dissolved minerals from the roots to the rest of the plant.

Front

What is the function of phloem in plants?

Back

Phloem is a type of tissue that transports sugars and other metabolic products downward from the leaves.

Front

What is a parasitic feeding method?

Back

Parasitic feeding involves one organism (the parasite) living on or in another organism (the host) and deriving nutrients at the host's expense.

Front

What is the effect of decreased water uptake on photosynthesis?

Back

Decreased water uptake can lead to a reduction in the production of oxygen and glucose during photosynthesis.