ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is the correct order of levels of organisation, from smallest to largest?

1. AOrgan, tissue, cell, organ system, organism
2. BTissue, cell, organ, organism, organ system
3. CCell, tissue, organ, organ system, organism
4. DCell, organ, tissue, organism, organ system

لماذا لا يستطيع الفيروس التكاثر بمفرده؟

1. Aيحتاج إلى جهاز خلية عائلة لصنع النسخ
2. Bيتكاثر في ضوء الشمس فقط
3. Cينقسم بالانقسام الاختزالي فقط
4. Dليس لديه أي مادة وراثية، لا DNA ولا RNA

إلى أي مجموعة من الجزيئات الحيوية تنتمي معظم الإنزيمات؟

1. Aالمعادن
2. Bالكربوهيدرات
3. Cالبروتينات
4. Dالدهون

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AAn equal mix of all three sheep
2. BThe sheep that carried the pregnancy
3. CThe sheep that gave the body cell nucleus
4. DThe sheep that gave the egg cell

Why can small nonpolar molecules cross the cell membrane easily while ions cannot?

1. AThe bilayer's core is made of hydrophobic tails
2. BThe membrane is made mostly of long carbohydrate chains
3. CThe membrane carries a strong positive charge
4. DIons are larger than most membrane proteins

The sodium-potassium pump moves ions across the cell membrane. What does one cycle of the pump do?

1. AMoves 2 Na⁺ out and 3 K⁺ in, using ATP
2. BMoves 3 Na⁺ out and 2 K⁺ in, using ATP
3. CMoves Na⁺ in and K⁺ out, without using ATP
4. DMoves 3 K⁺ out and 2 Na⁺ in, using ATP

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. AAll pink, like the parents
2. B1 red : 2 pink : 1 white
3. C1 red : 1 white
4. D3 red : 1 white

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 divide by meiosis instead of mitosis
4. DThese cells have no mitochondria