Question :
21. (p. 28) Carbohydrates contain carbon, hydrogen, and oxygen in : 1777293
21. (p. 28) Carbohydrates contain carbon, hydrogen, and oxygen in which of the following ratios?
A. 1:1:1
B. 2:1:2
C. 1:2:1
D. 2:1:1
22. (p. 31-32) What is metabolism?
A. The speed of chemical reactions in a human body
B. The sum total of all chemical reactions in the human body
C. The temperature of chemical reactions in the human body
D. The concentration of reactants in chemical reactions within the human body
23. (p. 32) What governs the speed of a reaction?
A. The concentration of reactants
B. The temperature of the reaction
C. The presence of a catalyst
D. All of these are correct.
24. (p. 32) Why does the human body use cellular respiration?
A. To release energy within the bonds of the glucose molecule
B. To create carbon dioxide
C. To produce water
D. To allow us to breathe
25. (p. 33) What is ATP?
A. A usable form of energy for the cell
B. A modified glucose molecule
C. The waste product produced by cellular respiration
D. Adenosine diphosphate
26. (p. 35) Which organelle regulates what enters and exits the cell?
A. Cell membrane
B. Golgi complex
C. Lysosomes
D. Nucleus
27. (p. 35) Which organelle is responsible for assembling amino acids into proteins?
A. Cell membrane
B. Golgi complex
C. Lysosomes
D. Ribosomes
28. (p. 35) Which organelle is responsible for carrying out cellular respiration?
A. Cell membrane
B. Golgi complex
C. C.Mitochondria
D. Ribosomes
29. (p. 35) All of the following organelles play a part in synthesizing and processing proteins except which one?
A. Mitochondria
B. Golgi complex
C. Endoplasmic reticulum
D. Ribosomes
30. (p. 35) The cell membrane performs all of the following functions except which one?
A. Gives the cell structure
B. Regulates what enters and exits the cell
C. Defines the cell's intracellular and extracellular environment
D. Houses DNA
