Photosynthesis IB Biology

Front

What is shown by the graph regarding carbon dioxide exchange in a plant at different light intensities?

Back

There is more respiration than photosynthesis between W and X.

Front

What does the Rf value in thin layer chromatography represent?

Back

The ratio of distances travelled by the pigment and solvent fronts

Front

If a plant is exposed to light, which colour of light would lead to the lowest rate of oxygen release by a green plant?

Back

Green

Front

What do chloroplasts and mitochondria have in common?

Back

Both are found in the cells of Filicinophyta.

Front

What is a feature of shorter wavelength visible radiation?

Back

It includes violet light.

Front

How can the rate of photosynthesis be measured? I. By the amount of oxygen produced II. By the increase in biomass III. By the amount of carbon dioxide produced

Back

By the amount of oxygen produced and by the increase in biomass

Front

What is light energy used for in photolysis?

Back

Formation of hydrogen and oxygen

Front

What happens in the leaf when Rhytisma is present? I. An increase in the intake of carbon dioxide II. A reduction in the production of oxygen III. An increase in the loss of water

Back

A reduction in the production of oxygen

Front

What is the relative wavelength in the visible spectrum of red light and blue light and are these colours absorbed or reflected by chlorophyll?

Back

A.

Front

How does chlorophyll respond to the red, green and blue wavelengths in white light?

Back

D.