Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

What is an ecosystem?

1. AAll the members of one species in an area
2. BThe weather in a particular region
3. CA single organism together with all of its organs and tissues
4. DThe living things in an area and their non-living surroundings

Apakah empat bes yang terdapat dalam DNA?

1. AAlanina, timina, glisina dan sisteina
2. BAdenina, urasil, guanina dan sitosina
3. CAdenina, timina, guanina dan sitosina
4. DAdenina, timina, glukosa dan sitosina

What is the R group of an amino acid?

1. AThe peptide bond between two amino acids
2. BThe carboxyl group at one end
3. CThe side chain that differs between amino acids
4. DThe amino group that is shared by all amino acids

Why do red blood cells have a flattened, biconcave disc shape?

1. AIt makes them stick to vessel walls
2. BIt lets them hold a larger nucleus and more DNA
3. CIt gives a large surface area for gas exchange
4. DIt helps them divide faster

In a food chain, which organisms are the producers?

1. AFungi that break down dead material
2. BAnimals that eat only plants, such as rabbits and deer
3. CPredators at the top of the chain
4. DPlants and algae that make food by photosynthesis

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe transplant replaces the patient's bones
2. BThe donor stem cells produce new, healthy blood cells
3. CThe donor marrow contains antibiotics that kill cancer
4. DThe donor red cells divide to make more red cells

A single-celled microbe has a nucleus and a cell wall made of chitin, and it reproduces by budding. What is it most likely to be?

1. AA bacterium
2. BA yeast
3. CA virus
4. DAn amoeba

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. A3 red : 1 white
2. B1 red : 2 pink : 1 white
3. C1 red : 1 white
4. DAll pink, like the parents