Practice IB Biology Topic 2.1 Molecules to Metabolism with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 2.1 Molecules to Metabolism and mirrors Paper 1A, 1B, 2 style where relevant.
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Which carbon compound produced by living organisms is inorganic?
Living organisms produce a wide variety of organic compounds.
Define the term organic.
State the three most commonly occurring elements.
Some organic compounds contain other elements. State one substance, or group of substances, that contains nitrogen.
Some organic compounds contain other elements. State one substance, or group of substances, that contains phosphorus.
What is the source of carbon for the following organisms?
| Autotrophs | Heterotrophs | Saprotrophs | |
|---|---|---|---|
| A. | Organic | Inorganic | Organic |
| B. | Inorganic | Organic | Organic |
| C. | Organic | Organic | Organic |
| D. | Inorganic | Inorganic | Inorganic |
What are the most frequently occurring elements in living organisms?
What is involved during oxidation?