The light-independent reactions produce intermediate compounds which are used in the light-dependent reactions
The Calvin cycle is part of the light-independent reactions
What is a photosystem?
A group of hundreds of chlorophyll molecules located on the inner membrane of the chloroplast
A group of hundreds of chlorophyll molecules located in the stroma of the chloroplast
A group of hundreds of chlorophyll molecules located in thylakoid membranes
A group of hundreds of chlorophyll molecules located in the cytoplasm of the plant cell
How does chlorophyll become photoactivated?
The light energy absorbed by the chlorophyll raises an electron in the molecule to be raised to a higher energy level
The light energy absorbed by the chlorophyll moves an electron in the molecule to a lower energy level
Once the excited electron in a chlorophyll molecule has been passed from molecule to molecule, where does it go?
To the stroma
To a series of electron carriers in the thylakoid membranes
To a series of electron carriers in the mitochondrial membrane
Each time the electron passes to a new electron carrier, it gives up some of its energy. This keeps happening until, at some stage, enough is made to form a molecule of ATP. This process is called what?
The production of ATP using the energy from an excited electron from photosystem II is called what?
Where do the light independent reactions take place?
The stroma of the chloroplast
The stroma of the mitochondrion
The thylakoid membrane
Which of the following is an essential substrate for the light independent reactions?
What is the enzyme which catalyses the fixation of carbon to ribulose bisphophate?
What is the product of carbon fixation?
6-carbon compound which is then split into two molecules of glycerate 3-phosphate
5-carbon compound which is then split into two molecules of glycerate 3-phosphate
Which of the following structural features make chloroplasts appropriate for their function?
large surface area
small space inside thylakoids
Light intensity, carbon dioxide concentration and temperature are all limiting factors in the rate of photosynthesis