1.ง่าย
What is endocytosis?
- ATaking material into the cell by folding the membrane around it
- BMoving water across the membrane by osmosis
- CSplitting the cytoplasm after the nucleus divides
- DReleasing material from the cell by fusing vesicles with the membrane
2.ง่าย
What is peer review?
- ARepeating your own experiment many times
- BExperts checking a study before it is published
- CAsking patients for their opinion of a treatment
- DReading a textbook to learn a topic
3.ง่าย
What is a trait that is controlled by many genes called?
- AA sex-linked trait
- BA codominant trait
- CA polygenic trait
- DA recessive trait
4.ปานกลาง
The sodium-potassium pump moves ions across the cell membrane. What does one cycle of the pump do?
- AMoves 3 Na⁺ out and 2 K⁺ in, using ATP
- BMoves 2 Na⁺ out and 3 K⁺ in, using ATP
- CMoves Na⁺ in and K⁺ out, without using ATP
- DMoves 3 K⁺ out and 2 Na⁺ in, using ATP
5.ปานกลาง
Why are stains such as iodine or methylene blue added to cells on a microscope slide?
- ATo keep the cells alive for longer
- BTo make the cells divide
- CTo make structures easier to see
- DTo make the cells larger
6.ปานกลาง
Why is the ABO blood group system an example of multiple alleles?
- AThere are three alleles of the gene in the population
- BBlood type is controlled by many separate genes
- CThe gene is found on several chromosomes
- DEach person carries three different alleles of the ABO gene
7.ยาก
Fertiliser washes from farmland into a lake. Algae grow rapidly, then die, and later many fish die. What is the main cause of the fish deaths?
- AThe algae release carbon dioxide that poisons fish
- BBacteria decomposing the dead algae use up the oxygen
- CThe fish eat too many algae and become ill
- DThe fertiliser is directly poisonous to fish
8.ยาก
พ่อแม่ทั้งสองมีกรุ๊ปเลือด O ลูกของพวกเขามีกรุ๊ปเลือดใดได้
- Aกรุ๊ป A หรือกรุ๊ป O
- Bทั้งสี่กรุ๊ปได้
- Cเฉพาะกรุ๊ป AB
- Dเฉพาะกรุ๊ป O
เฉลย
- 1. A · Taking material into the cell by folding the membrane around it
- 2. B · Experts checking a study before it is published
- 3. C · A polygenic trait
- 4. A · Moves 3 Na⁺ out and 2 K⁺ in, using ATP
- 5. C · To make structures easier to see
- 6. A · There are three alleles of the gene in the population
- 7. B · Bacteria decomposing the dead algae use up the oxygen
- 8. D · เฉพาะกรุ๊ป O
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