Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

Which elements make up carbohydrates?

1. ACarbon, hydrogen and nitrogen
2. BCarbon, hydrogen and oxygen
3. CHydrogen, oxygen and phosphorus
4. DCarbon, nitrogen and sulfur

What is a haploid cell?

1. AA cell with no nucleus
2. BA cell with an extra chromosome
3. CA cell with one set of chromosomes
4. DA cell with two sets of chromosomes

Which bonds hold the two strands of a DNA double helix together?

1. AIonic bonds between the phosphates
2. BHydrogen bonds between the bases
3. CPeptide bonds between the sugars
4. DDisulfide bonds between the bases

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

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

Golden rice was genetically modified to make beta-carotene. What is the aim?

1. ATo make the rice grow faster in cold climates
2. BTo make the rice resistant to all insects
3. CTo increase the protein content of the rice
4. DTo help prevent vitamin A deficiency

Bagaimanakah enzim mempercepat tindak balas kimia?

1. AIa menaikkan suhu sel
2. BIa merendahkan tenaga pengaktifan
3. CIa menambah tenaga kepada hasil
4. DIa dihabiskan sebagai bahan tindak balas

A drug lowered blood pressure in a study of 20 men aged 40 to 50. Why might the result not apply to women over 70?

1. AThe sample did not represent that group
2. BThe results were too precise to be trusted
3. CBlood pressure cannot be measured in older women
4. DThe study had a dependent variable

Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?

1. AAll the bacteria die, and the colonies are fungi
2. BOnly the bacteria that took up the plasmid can survive
3. CAmpicillin makes some bacteria take up the plasmid
4. DThe plasmid kills the bacteria that do not grow