Podcast
Questions and Answers
Which of the following is NOT a primary function of lipids?
Which of the following is NOT a primary function of lipids?
- Formation of cell membranes.
- Signaling through hormones like steroids.
- Acting as enzymes to catalyze reactions. (correct)
- Long-term energy storage.
In a phospholipid molecule, what component is both polar and hydrophilic, allowing it to interact with water?
In a phospholipid molecule, what component is both polar and hydrophilic, allowing it to interact with water?
- The phosphate group. (correct)
- The glycerol backbone.
- The fatty acid tails.
- Steroid rings
What type of bond is formed during the dehydration reaction that links glycerol and fatty acids to form a triglyceride?
What type of bond is formed during the dehydration reaction that links glycerol and fatty acids to form a triglyceride?
- Hydrogen bond
- Glycosidic bond
- Peptide bond
- Ester bond (correct)
If a DNA molecule contains 20% adenine, what percentage of guanine should it contain?
If a DNA molecule contains 20% adenine, what percentage of guanine should it contain?
Which of the following is a key structural difference between RNA and DNA?
Which of the following is a key structural difference between RNA and DNA?
What determines the unique properties of each amino acid?
What determines the unique properties of each amino acid?
Which level of protein structure is characterized by the sequence of amino acids?
Which level of protein structure is characterized by the sequence of amino acids?
What type of bond is formed when two monosaccharides are joined together to form a disaccharide?
What type of bond is formed when two monosaccharides are joined together to form a disaccharide?
What process is involved in breaking down polysaccharides into monosaccharides?
What process is involved in breaking down polysaccharides into monosaccharides?
Cellulose is a polysaccharide found in plants. What is its primary role?
Cellulose is a polysaccharide found in plants. What is its primary role?
Which of the following best describes the amphipathic nature of phospholipids in cell membranes?
Which of the following best describes the amphipathic nature of phospholipids in cell membranes?
What is the role of cholesterol within cell membranes?
What is the role of cholesterol within cell membranes?
Which of the following is a function of integral membrane proteins?
Which of the following is a function of integral membrane proteins?
Glycoproteins and glycolipids are commonly found on the outer surface of the cell membrane. What is their primary function?
Glycoproteins and glycolipids are commonly found on the outer surface of the cell membrane. What is their primary function?
How does the presence of unsaturated fatty acids in phospholipids affect membrane fluidity?
How does the presence of unsaturated fatty acids in phospholipids affect membrane fluidity?
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