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

Who first worked out the basic rules of inheritance by breeding pea plants?

1. ARobert Hooke
2. BCharles Darwin
3. CGregor Mendel
4. DLouis Pasteur

In genetics, what is a carrier?

1. AA person who has lost both alleles for the gene, so shows no trait
2. BA person who has a dominant disorder
3. CA person with two recessive alleles who has the disorder
4. DA person with one recessive allele for a disorder but no symptoms

What is a monomer?

1. AAn enzyme that breaks down polymers
2. BA molecule that contains no carbon
3. CA very large molecule that is made of many smaller units
4. DA small unit that joins with others to form a polymer

Why do many plants close their stomata on hot, dry days?

1. ATo speed up photosynthesis
2. BTo reduce water loss
3. CTo take in more carbon dioxide
4. DTo release more oxygen

What does it mean that a person's blood is Rh negative?

1. ATheir red cells lack the A and B antigens
2. BTheir red cells carry extra RhD antigen
3. CTheir plasma has no antibodies at all
4. DTheir red cells lack the RhD antigen

Why is water good at dissolving salts and sugars?

1. AIt contains carbon atoms
2. BIt has a very low boiling point
3. CIts molecules are nonpolar
4. DIts molecules are polar

Bacteria in a closed flask grow quickly at first, but the population then stops increasing. What is the main reason?

1. ANutrients run out and waste products build up
2. BThe bacteria change into viruses after many divisions
3. CThe bacteria stop dividing once they reach adult size
4. DThe flask becomes too cold for growth

Parts of a protein chain coil into alpha helices and fold into beta sheets, held by hydrogen bonds. Which level of protein structure is this?

1. AQuaternary structure
2. BTertiary structure
3. CSecondary structure
4. DPrimary structure