Lecture 3 - Photosynthesis Flashcards
Five major physiological processes of plants?
photosynthesis, respiration, transpiration, translocation of nutrients, nutrient uptake
They produce their own food through photosynthesis
autotrophs
what do you call the food of plants
glucose
Where does photosynthesis mainly occur?
leaves
True or False. Photosynthesis is the manufacture of sugars and its precursors by all plants in the presence of light and chlorophyll.
False.
Photosynthesis only happens in green plants.
chemical equation for photosynthesis
6CO2 + 12 H2O –> C6H12O6 + 6O2 + 6H2O
Carbon dioxide is taken from the air through the ____________
stomata
Water is absorbed from the ____________ by the ___________ and is transported in the ____________ to sites of photosynthesis.
soil, roots, xylem
______ of the total world’s photosynthetic output occurs in the oceans, and the remaining ________ by land plants. Among the land plants, about ________ is accounted for by forest and grasslands, while the remaining ________ by cultivated crops.
90%, 10%, 7-8%, 2-3%
light energy (_______) + water (H2O) –> glucose
photons
How many membranes does the chloroplast have? What is this called?
2, bi-layer
Sub-organelles where photosynthesis takes place
thylakoids
A stack of thylakoids is called ________?
granum / grana
What is the space surrounding the grana?
stroma
Found in the green internal organs of the chloroplast and embedded in the thylakoid membrane
chlorophyll molecules