Plant material is not a very nutritious food source because Select one: a. plant
ID: 201693 • Letter: P
Question
Plant material is not a very nutritious food source because Select one: a. plant material is composed primarily of carbon-rich compounds that are hard to digest. b. plant material is composed primarily of nitrogen-rich compounds that are hard to digest c.the nitrogen:carbon ratio (N/C) is high. d. the carbon:nitrogen ratio (C/N) is low. C4 plants have a higher maximum solar radiation use efficiency than C3 plants because Select one: a. They have a lower rate of mitochondrial respiration b. They are able to open their stomata at night, which conserves more water than C3 plants C. They lose less energy in carbohydrate synthesis than C3 plants d. They absorb more radiation than C3 plants Oe. They do not suffer from photorespiration like C3 plantsExplanation / Answer
1) Plant material is composed primarily of carbon rich compounds that are hard to digest - Cellulose is the main component of plant material that is carbon rich. It is hard to digest because humans lack enzymes to break down this polysaccharide. Whereas we have proteases to digest the nitrogen rich compounds. The C/N ratio varies among terrestrial plants and marine plants. In marine plants, the ratio is low and in terrestrial it is high.