1.ง่าย
In which form do animals store glucose in the liver and muscles?
- ACellulose
- BChitin
- CStarch
- DGlycogen
2.ง่าย
Which elements make up carbohydrates?
- ACarbon, hydrogen and nitrogen
- BCarbon, nitrogen and sulfur
- CHydrogen, oxygen and phosphorus
- DCarbon, hydrogen and oxygen
3.ง่าย
What is a genetically modified organism (GMO)?
- AAn organism that has been grown in a greenhouse
- BAn organism produced by normal sexual reproduction between two parents
- CAn organism whose DNA has been changed by genetic engineering
- DAn organism that has caught a virus
4.ปานกลาง
พันธะชนิดใดเชื่อมกรดอะมิโนเข้าด้วยกันในโปรตีน
- Aพันธะเอสเทอร์
- Bพันธะเพปไทด์
- Cพันธะไฮโดรเจนระหว่างเบส
- Dพันธะไกลโคซิดิก
5.ปานกลาง
Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?
- AExocytosis
- BEndocytosis
- COsmosis
- DPhagocytosis
6.ปานกลาง
Which list puts these human energy sources in order from fastest to use to longest-lasting store?
- AFat, then glycogen, then ATP
- BGlycogen, then ATP, then fat
- CATP, then fat, then glycogen
- DATP, then glycogen, then fat
7.ยาก
A cube-shaped cell has sides of 2 µm. What is its surface area-to-volume ratio?
- A6 : 1
- B1 : 3
- C2 : 1
- D3 : 1
8.ยาก
A patient with type A blood is given type B red blood cells by mistake. What is the cause of the reaction that follows?
- AAnti-B antibodies in the patient's plasma attack the donor cells
- BThe patient's A antigens dissolve the donor's haemoglobin
- CThe donor's B antigens destroy the patient's white blood cells
- DAnti-A antibodies on the donor cells attack the patient's plasma
เฉลย
- 1. D · Glycogen
- 2. D · Carbon, hydrogen and oxygen
- 3. C · An organism whose DNA has been changed by genetic engineering
- 4. B · พันธะเพปไทด์
- 5. A · Exocytosis
- 6. D · ATP, then glycogen, then fat
- 7. D · 3 : 1
- 8. A · Anti-B antibodies in the patient's plasma attack the donor cells
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