1) Photosynthesis is the process where by plants a) reproduce b) excrete c) make their own food d) respond to stimuli 2) The reactants of photosynthesis are a) oxygen and water b) carbon dioxide and water c) carbon dioxide and oxygen d) glucose and carbon dioxide e) glucose and oxygen 3) The products of photosynthesis are a) glucose and water b) oxygen and carbon dioxide c) oxygen and glucose d) water and carbon dioxide 4) All are limiting factors of photosynthesis EXCEPT a) light intensity b) enzymes c) carbon dioxide concentration d) oxygen concentration e) availability of water 5) Photosynthesis occurs in the a) leaf b) stem c) root d) flower 6) All of the following are uses of glucose EXCEPT a) make proteins b) make starch c) used in respiration d) breathe in by consumers e) eaten by consumers 7) In which cell organelle does photosynthesis occurs? a) Mitochondria b) Nucleus c) Chloroplast d) Vacuole 8) How does most of the water needed by the plant get to its leaves? a) It enters through the stomata b) It's made during a chemical reaction in the stem c) The flowers capture water & deliver it to the leaves d) The roots absorb it and then it travels up the xylem 9) How does carbon dioxide get into the leaves? a) It's absorbed by the roots b) It enters through the stomata (Small holes in the underside of the leaf) c) It's made in a chemical reaction in a stem d) It goes through the flowers 10) Which of these conditions could decrease the rate/speed of photosynthesis? a) Lots of rain b) A grey cloudy day  c) An abundance of Carbon dioxide 11) These open and close the stomata to allow CO2 in. a) The palisade cells b) The guard cells c) The plants cells

Photosynthesis - structure & function

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