Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Sel apa yang dibentuk melalui meiosis pada manusia?

1. ASel telur dan sel sperma
2. BSel hati
3. CSel darah merah di sumsum tulang
4. DSel kulit

Empat basa apa yang terdapat pada DNA?

1. AAdenin, timin, glukosa, dan sitosin
2. BAdenin, timin, guanin, dan sitosin
3. CAdenin, urasil, guanin, dan sitosin
4. DAlanin, timin, glisin, dan sistein

What is the R group of an amino acid?

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

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

1. AOsmosis
2. BExocytosis
3. CPhagocytosis
4. DEndocytosis

What is a chromosomal translocation?

1. AA piece of a chromosome is copied twice and stays in the same place
2. BOne DNA base is replaced by another base
3. CA piece of a chromosome is flipped around in place
4. DA piece of one chromosome attaches to a non-matching chromosome

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 5000 units
2. BAbout 10 000 units
3. CAbout 1000 units
4. DAbout 10 units

Cells lining the small intestine have tiny finger-like folds of membrane called microvilli. What does this tell you about their job?

1. AThey absorb substances, so they need a large surface area
2. BThey make digestive enzymes in large amounts
3. CThey protect the gut from bacteria by producing mucus
4. DThey move food along by beating like cilia

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese tissues are made only of haploid cells
2. BThese tissues also contain rapidly dividing cells
3. CThese cells have no mitochondria
4. DThese cells divide by meiosis instead of mitosis