Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Sebagian besar enzim termasuk dalam golongan biomolekul apa?

1. AMineral
2. BLipid
3. CKarbohidrat
4. DProtein

What is the main material in the cell wall of bacteria?

1. AChitin
2. BCellulose
3. CPeptidoglycan
4. DKeratin

What does the polymerase chain reaction (PCR) do?

1. AIt cuts DNA at specific sequences
2. BIt makes many copies of a piece of DNA
3. CIt separates proteins by their charge
4. DIt turns RNA into protein

Which element is found in all amino acids but not in carbohydrates?

1. AOxygen
2. BNitrogen
3. CHydrogen
4. DCarbon

What is an inversion mutation?

1. AA segment of a chromosome is lost completely
2. BA segment of a chromosome moves to a different, non-matching chromosome
3. CA chromosome segment breaks off and is reattached the wrong way round
4. DA whole extra chromosome is added to the cell

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt survives the high temperatures used to separate the strands
2. BIt works only in the dark, like the bacteria it comes from
3. CIt copies RNA as well as DNA
4. DIt makes the DNA strands stick together

Sucrose is broken down into glucose and fructose during digestion. What type of reaction is this?

1. AHydrolysis, which releases a water molecule
2. BDehydration synthesis, which uses a water molecule
3. CDehydration synthesis, which releases a water molecule
4. DHydrolysis, which uses a water molecule

A large molecule contains carbon, hydrogen, oxygen, nitrogen and phosphorus. Its monomers each have a sugar and a base. What type of molecule is it?

1. AA protein
2. BA carbohydrate
3. CA nucleic acid
4. DA lipid