Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the main role of carbohydrates in the human diet?

1. ATo carry the body's genetic information
2. BTo provide a quick source of energy
3. CTo build muscle tissue
4. DTo form antibodies

In which stage of the cell cycle does a cell spend most of its time?

1. AProphase
2. BMetaphase
3. CInterphase
4. DAnaphase

In which form do animals store glucose in the liver and muscles?

1. AGlycogen
2. BChitin
3. CStarch
4. DCellulose

Why are G–C base pairs held together more strongly than A–T pairs?

1. AG–C pairs are joined by strong covalent bonds instead of hydrogen bonds
2. BG–C pairs form three hydrogen bonds, and A–T pairs form two
3. CG and C are both purines, so they fit more tightly
4. DA–T pairs are found only in RNA

A solution of pH 4 is compared with a solution of pH 6. How many times more hydrogen ions does the pH 4 solution have?

1. A2 times
2. B20 times
3. C100 times
4. D10 times

Mengapa bakteri Gram-positif berwarna ungu pada pewarnaan Gram?

1. ADinding peptidoglikannya yang tebal menahan zat warna ungu
2. BBakteri itu tidak memiliki dinding sel sama sekali
3. CDindingnya yang tipis ditutupi membran luar yang kaya lipid
4. DBakteri itu mengandung klorofil

Redi placed meat in open jars and in jars covered with gauze. Maggots appeared only on meat that flies could reach. What did this show?

1. AMeat turns into maggots when exposed to air
2. BGauze produces chemicals that stop meat from rotting
3. CFlies form from rotting meat, and then they lay eggs on fresh meat
4. DMaggots come from eggs laid by flies, not from the meat itself

Cystic fibrosis is caused by a faulty CFTR protein, which forms a chloride channel in the cell membrane. Which process is directly affected?

1. AProduction of ATP in the mitochondria
2. BMovement of chloride ions through a membrane protein
3. CCopying of DNA in the nucleus
4. DDiffusion of oxygen molecules through the lipid bilayer