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

Biochemistry

2. Water

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

A urine specimen has a pH level of 4.5. How would you describe this urine?

Strongly alkaline

Highly acidic

Slightly alkaline

Neutral

Previous problemNext problem

Verified step by step guidance

Understand the pH scale: The pH scale ranges from 0 to 14, where values below 7 are acidic, values above 7 are alkaline (basic), and a pH of 7 is neutral.

Interpret the given pH value: A pH of 4.5 is below 7, indicating that the urine is acidic.

Determine the degree of acidity: The closer the pH value is to 0, the stronger the acidity. A pH of 4.5 is considered highly acidic because it is significantly lower than neutral (7).

Compare the options provided: 'Strongly alkaline' refers to a pH much higher than 7, 'Slightly alkaline' refers to a pH slightly above 7, and 'Neutral' refers to a pH of 7. None of these options match the given pH of 4.5.

Select the correct description: Based on the pH value and its interpretation, the correct description of the urine is 'Highly acidic.'