review 2-term

Which statement is true for both C3 and C4 plants?

• They have one type of chloroplast structure.

• They only carry out photosynthesis when their stomata are open.

• They use the enzyme PEP carboxylase in carbon fixation.

• They have mesophyll cells which are involved in photosynthesis.

The plant hormone indole acetic acid (IAA or auxin) is involved in the bending of stems in response to light.

 Which statement is a correct description of the action of auxin in this response?

• It inhibits cell division

• It is destroyed on the shady side of stems

• It causes cells to elongate faster

•   D  It is produced in greater quantity in the light  

NADP is necessary for the process of non-cyclic photophosphorylation, which involves two electron transport chains.

            Which statement best describes the role of NADP?

• final electron acceptor

• final hydrogen acceptor

• hydrogen acceptor

• initial electron acceptor

. If a chloroplast is deprived of light the light dependent reaction is unable to continue.

 

            Suggest what would happen initially after light deprivation in the light independent reaction.

• RuBP would increase, GP would increase and TP would increase

• RuBP would decrease, GP would increase and TP would decrease

• RuBP would decrease, GP would decrease and TP would decrease

• RuBP would increase, GP would decrease and TP would increase

Mitochondria play an important role in aerobic respiration. As with all organelles the structure of mitochondria is related to their function.

Which statement correctly explains why mitochondria need a double membrane?

• for extra protection because respiration is an important process

• to ensure the products of respiration are not lost

• to increase the surface area to maximise the rate of respiration

• to provide a space for the accumulation of hydrogen ions

Dehydrogenation and decarboxylation both occur in which process?

• Calvin cycle

• glycolysis

• Krebs cycle

• oxidative phosphorylation

These statements all apply to which type of plants?

 

•      carbon dioxide is incorporated into a 4-carbon compound

 

•      stomata are open during the day

 

•      PEP carboxylase is the enzyme involved in the uptake of CO2

 

• C3

• C4

• C3 and C4

• CAM

Which statement correctly explains the events at the beginning of the electron transport chain during oxidative phosphorylation?

• NAD reduced releases a proton and an electron

• NADP reduced releases a proton

• NAD reduced releases a hydrogen atom

• NADP reduced releases a hydrogen atom

Which table correctly compares cyclic and non-cyclic photophosphorylation?

• 
• 
• 
• 

A green plant was moved from white light into green light of equal intensity.

What will happen to the rate of photosynthesis?

• It would increase

• It would stay the same

• It would depend on the intensity of the white light

• It would decrease