Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Pada DNA, adenin selalu berpasangan dengan basa apa?

1. ASitosin
2. BGuanin
3. CUrasil
4. DTimin

In science, what is an observation?

1. AA conclusion drawn before any data are collected
2. BInformation gathered with the senses or instruments
3. CA rule that explains all known facts
4. DA guess about why something happens

What are restriction enzymes?

1. AEnzymes that cut DNA at specific base sequences
2. BEnzymes that join amino acids into proteins
3. CEnzymes that copy RNA into DNA
4. DEnzymes that digest fats in the intestine

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

1. AOsmosis
2. BPhagocytosis
3. CEndocytosis
4. DExocytosis

To insert a human gene into a bacterial plasmid, scientists cut both the gene and the plasmid with the same restriction enzyme. Why?

1. ASo the plasmid loses all its genes
2. BSo the gene is turned into RNA
3. CSo the cut ends match and can join together
4. DSo both pieces become exactly the same length

What is the difference between an epidemic and a pandemic?

1. AA pandemic affects only one town
2. BAn epidemic affects the whole world at once
3. CAn epidemic is caused only by bacteria
4. DA pandemic spreads across many countries or continents

Why is ATP described as an energy carrier rather than a long-term energy store?

1. ACells hold only a little and constantly recycle it from ADP
2. BATP contains no energy in its bonds, so it cannot be stored
3. CATP is stored in large amounts in fat tissue
4. DATP can be made only in plants

A leaf with green and white areas is kept in light and then tested with iodine. Only the green areas turn blue-black. What does this show?

1. AWhite areas store more starch than green areas
2. BLight is not needed for photosynthesis
3. CIodine destroys chlorophyll in the leaf
4. DChlorophyll is needed for photosynthesis