When chlorophyll absorbs the energy in sunlight, this energy: O Activates electrons in chlorophyll Generates heat used by the plant for photosynthesis O Is used to break apart sugar

When entering a photosystem, light energy is passed to: water. an electron carrier. the carotenoid centre. None of the answers listed are correct. Ochlorophyll.

Rubisco can bind with CO2 or 02. When it binds with O2, it "wastes" some of the energy captured from the sun. This reaction is photorespiration and is favored at high temperatures and low CO2:02 ratios. Which of the following strategies should limit photorespiration (select all that apply). Keep stomata closed. Keep stomata open. Physically separate the light and light-independent reactions. Temporally separate CO2 uptake and fixation.

If a plant closes its stomata, what can no longer get into the leaf, that cells need to do photosynthesis? O carbon dioxide охygen water O glucose

The light dependent reactions of photosynthesis serve to __________ while the light independent reactions serve to ______ .

If plants need CO2 to construct glucose (by photosynthesis), why is the rising level of CO2 in the atmosphere cause for concern? You’d think more CO2 would accelerate plant growth, and that would be a good thing.

Which of the following best summarizes the strategy used by CAM plants, which live in hot and dry climates, in order to conserve water? O These plants use a different electron donor so that they won't consume water O These plants keep stomata closed day and night to avoid evaporation O These plants collect carbon dioxide at night, but then use the carbon dioxide during the day O These plants are heterotrophs, so they do not need to rely on light reactions that consume water

Put the steps of photosynthesis in order                                                                                    NADPH is oxidized                                                                                    Photosystem I                                                                                    Rubisco fixes carbon to a precursor                                                                                    NADP+ is reduced                                                                                    5 carbon precursor is remade                                                                                    Water donates electrons                                                                                    Energy from electrons pumps hydrogen ions across a membrane

Which of the following statements about chlorophyll is correct? It reflects high-energy electrons. It appears green because it absorbs light in the green light spectrum. B. It reflects all colors in the light spectrum except green. OC. It reflects light in the green light spectrum.

Opening and closing of pores is a function performed by:         I.   Stomata       II.   Chlorophyll      III.   Chloroplast      IV.   Guard cells