ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

In an enzyme reaction, what is the substrate?

1. AThe product released at the end
2. BThe gene that codes for the enzyme
3. CThe substance that the enzyme acts on
4. DThe part of the enzyme that changes shape

Which of these diseases is caused by a virus?

1. AMalaria
2. BAthlete's foot
3. CInfluenza
4. DTuberculosis

أين يوجد معظم DNA في الخلية حقيقية النواة؟

1. Aفي الجدار الخلوي
2. Bفي الغشاء الخلوي
3. Cفي النواة
4. Dفي الجسيمات الحالّة

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

1. AOxygen
2. BNitrogen
3. CCarbon
4. DHydrogen

What is the role of oxygen in aerobic respiration?

1. AIt is built into glucose molecules
2. BIt accepts electrons at the end of the transport chain
3. CIt is split to release the energy needed for glycolysis
4. DIt breaks pyruvate into lactic acid

Why is DNA replication called semiconservative?

1. AEach new DNA molecule has one old strand and one new strand
2. BEach new strand is a random mix of old and new pieces
3. COnly half of the DNA is copied each time
4. DThe old DNA molecule is kept whole, and a completely new one is made

A diploid cell contains 10 units of DNA in G1. How many units are in each cell at the end of meiosis II?

1. A10 units
2. B5 units
3. C20 units
4. D2,5 units

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. BFlies form from rotting meat, and then they lay eggs on fresh meat
3. CGauze produces chemicals that stop meat from rotting
4. DMaggots come from eggs laid by flies, not from the meat itself