Describe the structure and function of the thylakoids of a chloroplast.

Thylakoids are flattened membranous sacs inside the chloroplast. They are structures in which photosynthesis occurs in eukaryotic cells.

What role do the accessory pigments play in photosynthesis?

The accessory pigments absorb colors of light that are not absorbed by chlorophyll a. They then transfer the energy in these colors of light of chlorophyll a for use in photosynthesis.

What happens to the electrons that are lost by photosystem II? What happens to the electrons that are lost by photosystem I?

Electrons in photosystem II are carried along an electron transport chain and replace electrons lost by photosystem I. Electrons from photosystem I are carried along a different electron transport chain and drive the synthesis of NADPH.

How is ATP made in the light reactions?

ATP synthase makes ATP from ADP and phosphate by using energy provided by the movement of protons from the inside of the thylakoid to the stroma.

Describe what can happen to the PGAL molecules made in the Calvin Cycle.

Most of the PGAL is used to make more RuBP, keeping the Calvin cycle operating. Some PGAL is converted into other organic compounds including amino acids, lipids, and carbohydrates.

What plant structures control the passage of water out of a plant and carbon dioxide into a plant?

The stomata control the passage of water and carbon dioxide.

A C4 plant takes in CO2 and fixes it into four-carbon organic compounds inside certain types of cells. After these compounds are transported to other cells, they release CO2 which can then enter the Calvin Cycle.

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CH.6 Sec.1 & 2

Question	Answer
Describe the structure and function of the thylakoids of a chloroplast.	Thylakoids are flattened membranous sacs inside the chloroplast. They are structures in which photosynthesis occurs in eukaryotic cells.
What role do the accessory pigments play in photosynthesis?	The accessory pigments absorb colors of light that are not absorbed by chlorophyll a. They then transfer the energy in these colors of light of chlorophyll a for use in photosynthesis.
What happens to the electrons that are lost by photosystem II? What happens to the electrons that are lost by photosystem I?	Electrons in photosystem II are carried along an electron transport chain and replace electrons lost by photosystem I. Electrons from photosystem I are carried along a different electron transport chain and drive the synthesis of NADPH.

Name 3 substances that are produced when water molecules are broken down during the light reactions.	Protons, Electrons, & Oxygen
How is ATP made in the light reactions?	ATP synthase makes ATP from ADP and phosphate by using energy provided by the movement of protons from the inside of the thylakoid to the stroma.
In what part of the chloroplast does the Calvin cycle take place?	stroma
Describe what can happen to the PGAL molecules made in the Calvin Cycle.	Most of the PGAL is used to make more RuBP, keeping the Calvin cycle operating. Some PGAL is converted into other organic compounds including amino acids, lipids, and carbohydrates.
How many turns of the Calvin cycle are needed to produce a molecule of PGAL?	3
How many molecules of ATP are used to produce a molecule of PGAL?	9
How many molecules of NADPH are used to produce a molecule of PGAL?	6
What plant structures control the passage of water out of a plant and carbon dioxide into a plant?	The stomata control the passage of water and carbon dioxide.
What is a C4 plant?	A C4 plant takes in CO2 and fixes it into four-carbon organic compounds inside certain types of cells. After these compounds are transported to other cells, they release CO2 which can then enter the Calvin Cycle.

Created by: bio-williamson

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