Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

Alat manakah digunakan untuk melihat sel individu?

1. AMikroskop
2. BTermometer
3. CSpektrometer untuk bunyi
4. DTeleskop

What is the main job of the large central vacuole in a plant cell?

1. AIt captures light energy for photosynthesis
2. BIt assembles proteins from amino acids
3. CIt stores water and keeps the cell firm
4. DIt copies DNA before the cell divides

What is a trait that is controlled by many genes called?

1. AA codominant trait
2. BA recessive trait
3. CA polygenic trait
4. DA sex-linked trait

Why is water good at dissolving salts and sugars?

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

There are 64 possible codons but only about 20 amino acids. What does this tell you about the genetic code?

1. AMost amino acids are coded for by more than one codon
2. BOnly 20 of the codons are ever used
3. CEach codon codes for more than one amino acid at the same time
4. DEach amino acid has exactly three codons

Many vitamins act as coenzymes. What does this mean?

1. AThey are digested to release large amounts of energy
2. BThey replace enzymes that have been denatured
3. CThey help enzymes carry out their reactions
4. DThey are built into the cell membrane

In Tay-Sachs disease, a lysosomal enzyme does not work. What happens inside the affected nerve cells?

1. AThe ribosomes stop making proteins
2. BThe undigested substance builds up inside lysosomes
3. CThe cells can no longer make ATP in their mitochondria
4. DThe DNA cannot be copied before division

A study finds that coffee drinkers have more lung cancer. Later it is found that coffee drinkers in the study also smoked more. What is smoking in this study?

1. AA confounding variable
2. BThe control group
3. CThe dependent variable
4. DA placebo