Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

2. Water

Autoionization of Water

Biochemistry

2. Water

Autoionization of Water

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Multiple Choice

Which of the following ions is likely to diffuse the most rapidly in biological systems?

Ca²⁺

OH^-

Mg²⁺

Cl^-

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Verified step by step guidance

Understand the concept of diffusion: Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. In biological systems, the rate of diffusion is influenced by factors such as the size and charge of the ion.

Consider the size and charge of each ion: Smaller ions and those with lower charges tend to diffuse more rapidly. Compare the given ions: Ca2+, OH-, Mg2+, and Cl-.

Analyze the charge of each ion: Ca2+ and Mg2+ both have a +2 charge, OH- has a -1 charge, and Cl- has a -1 charge. Ions with lower charges generally diffuse more easily.

Evaluate the size of each ion: Generally, ions with smaller radii will diffuse more quickly. Hydroxide (OH-) and chloride (Cl-) are smaller compared to calcium (Ca2+) and magnesium (Mg2+).

Conclude which ion is likely to diffuse the most rapidly: Based on the analysis of charge and size, OH- is likely to diffuse more rapidly than the other ions listed, due to its smaller size and lower charge.