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Biology Studying practice for Exam

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amybeller
Created by amybeller over 5 years ago
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Question 1

Question
In order to form a polymer from monomers, monomers must:
Answer
  • undergo trypsin reactions
  • undergo dehydration reactions
  • undergo amylase reactions

Question 2

Question
Which of the following cellular functions is associated with the smooth endoplasmic reticulum (SER)?
Answer
  • houses the DNA
  • produces hydrogen peroxide as byproduct
  • contains hydrolytic (digestive) enzymes
  • stores Ca 2+
  • energy powerhouse of cell (makes ATP)

Question 3

Question
Which of the following statements is false regarding protein structure?
Answer
  • one type of secondary structure found in proteins is called an alpha helix
  • beta sheets are an example of tertiary structure
  • tertiary structure may be supported with hydrogen bonding, ionic bonding , hydrophobic interactions and covalent bonding amino acids in the polypeptide

Question 4

Question
Which of the following membrane proteins are involved in active transport across the plasma membrane?
Answer
  • a chloride channel
  • sodium/potassium ATPase (Na+/K+pump)
  • glucose transporter

Question 5

Question
What will happen to a red blood cell that is placed into a hypertonic solution?
Answer
  • nothing, it will remain unchanged, the water will flow in an dout of the cell at the same rate
  • it will lyse (burst) because too much water will enter the cell from the surrounding fluid
  • it will shrivel because too much water will leave the cell into the surrounding fluid

Question 6

Question
The molecule DNA is important to biological systems because
Answer
  • it can be replicated
  • it forms a complex, double-helical structure.
  • nucleotides form genes.

Question 7

Question
The molecule DNA is important to biological systems because
Answer
  • it can be replicated
  • it forms a complex, double-helical structure.
  • nucleotides form genes.