What I Know
Choose the letter of the correct answer
1. What do you call the process wherein plants make their own food?
A cellular respiration
C. protein synthesis
B photosynthesis
D carbon fixation
2. Which of the following is NOT a requirement of photosynthesis?
A oxygen
C. light energy
B water
D. carbon dioxide
3. Mesophyll layer of the leaf piays an important role in trapping light energy
from the sun upon which photosynthesis mostly take place in this layer why
is this so?
A because it contains air spaces
B because it is transparent allowing light to penetrate
C. because it has the greatest number of chloroplasts
D. because it provides an entrance and exit for gases
4. What are the products of light-dependent reaction used to power the light-
independent reaction?
A Sugar and ATP
C. NADPH and ATP
B. Oxygen and NADPH D. NADPH and carbon dioxide
5. Cellular respiration starts with glycolysis, which occurs in the cytoplasm
producing 2 pyruvic acid. Which of the following processes will allow cellular
respiration to continue in case oxygen is absent?
A. Krebs Cycle
C. aerobic respiration
B. Electron Transport Chain
D. anaerobic respiration
6. All organisms get energy from food to perform different life processes. It is
done by converting stored energy from food into chemical energy for cell use
Which of the following is associated with the production of chemical energy?
A vacuole
C. mitochondrion
B. chloroplast
D. nucleus
7. How many ATP molecules are needed to snit
ce​