Multiple Choice
Which biomolecules primarily make up the glycocalyx in bacterial cells?
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4. Biomolecules
Introduction to Biomolecules
Multiple Choice
What is the primary fuel molecule used by the body during cellular respiration?
A
Glucose
B
Fatty acids
C
Nucleic acids
D
Amino acids
Verified step by step guidance1
Understand the process of cellular respiration: Cellular respiration is a series of metabolic processes that convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
Identify the main stages of cellular respiration: These include glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Each stage plays a role in breaking down molecules to produce ATP.
Recognize the role of glucose: Glucose is a simple sugar and a primary energy source for cells. It is the main molecule that enters glycolysis, the first stage of cellular respiration.
Explore glycolysis: During glycolysis, one molecule of glucose (C₆H₁₂O₆) is broken down into two molecules of pyruvate, producing a net gain of two ATP molecules and two NADH molecules.
Conclude the primary fuel: Given that glucose is the initial substrate in glycolysis and is crucial for ATP production, it is the primary fuel molecule used by the body during cellular respiration.
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