Podcast
Questions and Answers
What is the name of the cavity that the thylakoids enclose?
What is the name of the cavity that the thylakoids enclose?
- Chloroplast cavity
- Stroma cavity
- Thylakoid space (correct)
- Mitochondrial matrix
Which two photosystems are responsible for absorbing light and using redox reactions to store energy?
Which two photosystems are responsible for absorbing light and using redox reactions to store energy?
- Photosystems I and II (correct)
- Photosystems A and B
- Photosystems III and IV
- Photosystems X and Y
Which type of reactions in photosynthesis do not require light directly?
Which type of reactions in photosynthesis do not require light directly?
- Light-independent reactions (correct)
- Redox reactions
- Endergonic reactions
- Light-dependent reactions
What is the name of the cycle involved in the fixation of carbon dioxide?
What is the name of the cycle involved in the fixation of carbon dioxide?
What is the energy requirement of the Calvin-Benson cycle?
What is the energy requirement of the Calvin-Benson cycle?
How many molecules of ATP and NADPH are required for the reduction step of the Calvin-Benson cycle?
How many molecules of ATP and NADPH are required for the reduction step of the Calvin-Benson cycle?
What do anabolic pathways do?
What do anabolic pathways do?
What is the main role of ATP in anabolic pathways?
What is the main role of ATP in anabolic pathways?
What happens during oxidation in biological systems?
What happens during oxidation in biological systems?
Which term best describes a chemical that gains electrons in a redox reaction?
Which term best describes a chemical that gains electrons in a redox reaction?
What process is involved in biological oxidation?
What process is involved in biological oxidation?
Why do cells use electron carrier molecules?
Why do cells use electron carrier molecules?
What is the starting point for the synthesis of sugars, complex polysaccharides, and peptidoglycan?
What is the starting point for the synthesis of sugars, complex polysaccharides, and peptidoglycan?
Which of the following is not a precursor that some cells can use to synthesize sugars through gluconeogenesis?
Which of the following is not a precursor that some cells can use to synthesize sugars through gluconeogenesis?
What is the role of lipids in biological systems?
What is the role of lipids in biological systems?
What is the source of the glycerol used in lipid biosynthesis?
What is the source of the glycerol used in lipid biosynthesis?
Which of the following statements about amino acid biosynthesis is true?
Which of the following statements about amino acid biosynthesis is true?
What is the role of mycolic acid in the cell wall of Mycobacterium tuberculosis?
What is the role of mycolic acid in the cell wall of Mycobacterium tuberculosis?
What is the primary function of membrane proteins in cells and organelles?
What is the primary function of membrane proteins in cells and organelles?
How does a membrane maintain an electrochemical gradient?
How does a membrane maintain an electrochemical gradient?
What process utilizes the potential energy of an electrochemical gradient to phosphorylate ADP to ATP?
What process utilizes the potential energy of an electrochemical gradient to phosphorylate ADP to ATP?
How many pairs of protons are typically pumped across the membrane by an electron transport chain for each pair of electrons contributed by NADH?
How many pairs of protons are typically pumped across the membrane by an electron transport chain for each pair of electrons contributed by NADH?
What is the process by which protons flow down their electrochemical gradient through protein channels called ATP synthases, resulting in the phosphorylation of ADP to ATP?
What is the process by which protons flow down their electrochemical gradient through protein channels called ATP synthases, resulting in the phosphorylation of ADP to ATP?
How many molecules of ADP are typically oxidatively phosphorylated to ATP per molecule of glucose via chemiosmosis?
How many molecules of ADP are typically oxidatively phosphorylated to ATP per molecule of glucose via chemiosmosis?
What is the optimal temperature for most microorganisms?
What is the optimal temperature for most microorganisms?
What is the main reason why certain pathogens can cause disease in humans?
What is the main reason why certain pathogens can cause disease in humans?
What is the term used to describe organisms that grow best at temperatures above 80 degrees Celsius?
What is the term used to describe organisms that grow best at temperatures above 80 degrees Celsius?
What is the effect of high temperatures on the rate of chemical reactions?
What is the effect of high temperatures on the rate of chemical reactions?
What happens to an enzyme's active site when the temperature changes?
What happens to an enzyme's active site when the temperature changes?
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