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

1. Introduction to Biochemistry

Characteristics of Life

Biochemistry

1. Introduction to Biochemistry

Characteristics of Life

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Multiple Choice

Which of the following is not a characteristic of life?

Ability to reproduce sexually or asexually.

Composed of cells.

Ability to metabolize oxygen.

Maintain homeostasis.

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Begin by understanding the characteristics of life. These are traits or features that are commonly found in living organisms.

Review the list of characteristics provided in the problem: ability to reproduce, composed of cells, ability to metabolize oxygen, and maintain homeostasis.

Consider the definition of each characteristic: Reproduction refers to the ability to produce offspring, either sexually or asexually. Being composed of cells means that the organism is made up of one or more cells, which are the basic units of life. Homeostasis is the ability to maintain a stable internal environment despite external changes.

Evaluate the characteristic 'ability to metabolize oxygen.' While many organisms do metabolize oxygen, it is not a universal characteristic of all life forms. Some organisms, such as anaerobic bacteria, do not require oxygen for metabolism.

Conclude that the characteristic 'ability to metabolize oxygen' is not a universal trait of all living organisms, making it the correct answer to the question of which is not a characteristic of life.