Biomolecules And Cellular Processes
- 1.Which biomolecule below contains hydrogen, oxygen, nitrogen, carbon, and phosphorous?
- A.
Nucleic acid
- B.
Protein
- C.
Carbohydrate
- D.
Lipid
- 2.Which biomolecule is fundamental to the structure and function of biological membranes, such as cell membranes?
- A.
Nucleic acid
- B.
Lipid
- C.
Protein
- D.
Carbohydrate
- 3.Which biomolecule is composed of five basic elements: carbon, hydrogen, oxygen, nitrogen, and phosphorus arranged into two types of polymers, one a double-stranded molecule shaped as a double helix, the other polymer is a single-stranded molecule?
- A.
Carbohydrate
- B.
Nucleic acid
- C.
Protein
- D.
Lipid
- 4.Which biomolecule is composed of five basic elements: carbon, hydrogen, oxygen, nitrogen, and sulfur, with its monomers bonded together by peptide bonds to form a polypeptide chain?
- A.
Carbohydrate
- B.
Nucleic acid
- C.
Protein
- D.
Lipid
- 5.Homeostasis is best described as the –
- A.
Movement of particles from one side of a cellular membrane to another.
- B.
Tendency of particles to distribute themselves evenly across a membrane.
- C.
Transfer of molecules in response to excess solute relative to a solution.
- D.
Ability to maintain and regulate stable internal conditions of the cell.
- 6.What are the products of the process of photosynthesis?
- A.
Glucose and ATP
- B.
Oxygen and Glucose
- C.
Water and Oxygen
- D.
ADP and NADP-
- 7.Which of the following biological processes would result in the formation of ATP?
- A.
Cellular Respiration
- B.
Homeostasis
- C.
Digestion
- D.
Reproduction
- 8.The difference between active and passive transport is that -
- A.
Passive transport requires energy to move molecules up a concentration gradient, active does not.
- B.
Passive transport can only move specific particles across a membrane, active can move any particle.
- C.
Active transport requires energy to move molecules up a concentration gradient, passive does not require energy (moves down gradient)
- D.
Active transport moves molecules in animal cells, passive transport moves molecules in plants.
- 9.Which of the following scenarios represents an example of osmosis?
- A.
Blood vessels transport glucose to cells
- B.
CO2 waste is eliminated during respiration
- C.
Limp celery becomes crisp in water
- D.
Sweating lowers body temperature
- 10.Each of the following is a product of cellular respiration EXCEPT -
- A.
ATP
- B.
Acetyl CoA
- C.
CO2
- D.
Water
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