Nokea
The cellular membrane consists of a bilayer of which substances?
- A. Nucleic acids
- B. Phospholipids
- C. Proteins
- D. Carbohydrates
Correct Answer: B
Rationale: The cellular membrane is primarily composed of a phospholipid bilayer, forming the structure that regulates entry and exit.
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Which is an example of the comet organizational hierarchy for a wolf?
- A. Muscle tissue, blood cell, DNA, organ, circulatory system, wolf.
- B. Circulatory system, DNA, muscle tissue, blood cell, heart, wolf.
- C. Blood cell, organ, circulatory system, muscle tissue, DNA, wolf.
- D. DNA, blood cell, muscle tissue, heart, circulatory system, wolf.
Correct Answer: D
Rationale:
Which set is correctly listed for characteristic chromosome number, and most of their cells have a complete set of these chromosomes?
- A. Genus, order, species, phylum
- B. Order, phylum, species, genus
- C. Species, order, phylum, genus
- D. Phylum, order, genus, species
Correct Answer: D
Rationale: The correct order from largest to smallest is Phylum, Order, Genus, Species. In biological classification, the hierarchy of taxonomic ranks is structured such that phylum is the broadest category, followed by order, genus, and species, which is the most specific. When looking at the characteristic chromosome number, most cells have a complete set of chromosomes, and this order aligns with the genetic similarity and differences observed in organisms.
Which method of glucose conversion generates the most usable and efficient form of ATP within the human body?
- A. Lactic acidosis.
- B. Fermentation conversion.
- C. Anaerobic respiration.
- D. Aerobic respiration.
Correct Answer: D
Rationale:
What does the mitochondrion produce that causes it to often be called the powerhouse of the cell?
- A. ATP
- B. Enzymes.
- C. Proteins.
- D. DNA.
Correct Answer: A
Rationale:
Enzymes can ................. reactions.
- A. Catalyze
- B. Inhibit
- C. Stop
- D. None of the above
Correct Answer: A
Rationale: Enzymes function to catalyze reactions, which means they accelerate the rate of chemical reactions without being consumed in the process. Enzymes do not inhibit or stop reactions; instead, they facilitate and enable reactions to occur more efficiently. Therefore, the correct answer is 'Catalyze.'