Phiếu bài tập Sinh học cho kỳ thi đầu vào điều dưỡng có đáp án

What does xylem carry in a plant?

1. AOxygen from the leaves to the roots
2. BSeeds from the flowers to the soil
3. CWater and minerals from the roots upward
4. DSugars from the leaves to the roots

What is the pH of pure water at 25 °C?

1. A7
2. B14
3. C1
4. D0

What is phagocytosis?

1. AA cell taking in small droplets of fluid
2. BA cell dividing into two identical daughter cells
3. CA cell engulfing large particles such as bacteria
4. DA cell releasing hormones by exocytosis

Trình tự nào bổ sung với mạch DNA A-T-G-C-C-A?

1. AT-A-C-G-G-T
2. BA-T-G-C-C-A
3. CG-C-A-T-T-G
4. DU-A-C-G-G-U

Một hồng cầu được đặt vào dung dịch rất mặn (ưu trương). Điều gì xảy ra?

1. ANước rời khỏi tế bào và tế bào co lại
2. BNước vào tế bào và tế bào vỡ ra
3. CMuối vào tế bào và tế bào trương lên
4. DKhông có gì thay đổi vì muối không đi qua được

Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?

1. AExocytosis
2. BPhagocytosis
3. COsmosis
4. DEndocytosis

How does a phospholipid differ from a triglyceride?

1. AIt is made of amino acids
2. BIt has four fatty acids instead of three
3. CIt contains no glycerol, only fatty acids and phosphate
4. DOne of the fatty acids is replaced by a phosphate group

An old idea says giraffes got long necks because each one stretched to reach leaves and passed the longer neck to its young. Why is this idea rejected?

1. AChanges acquired in a lifetime are not passed on in the genes
2. BGiraffes do not eat leaves from tall trees, so stretching is not needed
3. COnly plants can pass on traits to offspring
4. DNeck length is not affected by any genes