Photosynthesis 0.0 / 5 ? BiologyHuman, animal and plant physiologyA2/A-levelCIE Created by: _pxmudi_Created on: 02-02-19 05:43 What do light-dependent reactions do? Use light energy to split water and make ATP & energetic hydrogen atoms. 1 of 8 What do light-independent reactions do? Involves in the fixation of CO2 and the synthesis of glucose. 2 of 8 Where do a) light-independent b) light-dependent reactions take place? a) stroma b) thylakoids 3 of 8 What does a photosystem contain? 200 chlorophyll molecules, 50 molecules of accesssory pigments, several protein molecules (with enzymes) and lipids. 4 of 8 What is the absorption spectra? A diagram that shows the wavelengths of light absorbed by the various pigments found in chloroplasts. 5 of 8 What is the action spectra? A graph of the rate of a physiological activity (eg:rate at which O2 is given off) plotted against wavelength of light. 6 of 8 Absorption peaks of a) chlorophyll a b) chlorophyll b? a) 430nm (blue) and 662nm (red) b) 453nm and 642nm 7 of 8 What is the function of carotenoids on chlorophyll? Protects chlorophyll from damage by the formation of single oxygen atoms (free radicals). 8 of 8
Comments
No comments have yet been made