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🧬 Biology, NCEA

Years 11 to 13 · Read up first

10 questions. Get 8 right to earn 10 minutes. All 10 right = +5 bonus. They start easy and get harder as you go, so treat the first few as a warm-up. Every one you miss comes back with the answer and why.

1. Which organelle is known as the powerhouse of the cell, producing most of its ATP?

MitochondriaNucleusGolgi apparatusRibosome

2. Homeostasis is best described as

the process of growth from birth to adulthoodthe maintenance of a stable internal environment despite external changesthe exchange of gases in the lungsthe breakdown of food in digestion

3. Natural selection is best described as

individuals with advantageous traits are more likely to survive and reproduceall individuals in a population change during their lifetimespecies always evolve towards perfectionmutations are planned to help a species

4. Photosynthesis mainly takes place in which organelle?

MitochondrionNucleusChloroplastRibosome

5. An ecosystem is best described as

a community of living things interacting with each other and their physical environmenta single species living alonea zoo or nature reserveonly the non-living parts of an environment

6. Homeostasis in the body typically works through

the immune system onlypositive feedback loops that amplify every changenegative feedback loops that correct changes back towards a set pointrandom, uncontrolled processes

7. Mitosis produces

two genetically identical diploid cellsfour genetically different haploid cellstwo cells with double the chromosome numberone large cell

8. Which organelle contains the cell's genetic material (DNA)?

VacuoleChloroplastMitochondriaNucleus

9. 'Survival of the fittest' in evolution means the fittest individuals are those that

are physically the strongestgrow the largestleave the most surviving offspringlive the longest

10. When blood glucose rises after a meal, the pancreas releases

adrenaline, which has no effect on glucosebile, which digests fatglucagon, which raises blood glucose furtherinsulin, which causes cells to take up glucose and lowers blood glucose

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