1.Plants are considered as food manufacturers.In which of the following cell organelles does photosynthesis occur?

a.ribosome
b.chlorophyll
c.chloroplast
d.mitochondrion

2.During the synthesis of ATP,what is the direction of hydrogen flow?

a.from the matrix to the inter membrane space
b.from the inter membrane space to the matrix
c.from the cytoplasm to the matrix of the mitochondrion
d.from the matrix of the mitochondrion to the cytoplasm

3.Pyruvate is a product of glycolysis.If there is no oxygen available to the cells of an animal,what would happen to the pyruvate?

a.turns into CO2
b.turns into alcohol
c.turns into lactic acid
d.turns into alcohol and CO2

4.What would happen if ATP and NADPH are already used up at night?

a.less oxygen will be produced
b.glucose production will stop
c.less carbon dioxide will be used
d.water molecule will split to form electrones

5.Martha did not eat several days,where did her cells get the glucose for ATP production?

a.blood sugar
b.protein in the blood
c.glycogen stored in the liver
d.glycogen stored in the muscle

6.Jenny wants to know if the leaves are capable of making food during night time.Which of the following experimental design should jenny do to get an accurate answer to her question?

a.cover the plant with paper bag overnight and test for the presence of starch
b.put one potted plant in very dark place overnight and test for the presence of starch
c.cove one leaf of a potted plant with carbon paper for two hours And test for the presence of starch
d.put the potted plant under the sun and the other in a dark room for 3 hours and test for the presence of starch.​