ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

أي الخلايا تنتج عن الانقسام الاختزالي (الميوزي) عند الإنسان؟

1. Aخلايا الجلد
2. Bالبويضات والحيوانات المنوية
3. Cخلايا الكبد
4. Dخلايا الدم الحمراء في نقي العظم

What is a chromosomal deletion?

1. AThe loss of a piece of a chromosome
2. BThe swap of a single DNA base
3. CAn extra copy of a whole chromosome
4. DA piece of chromosome that is turned around

What is the main material in the cell walls of fungi?

1. AChitin
2. BCollagen
3. CPeptidoglycan
4. DCellulose

A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?

1. A73 beats per minute
2. B74 beats per minute
3. C72 beats per minute
4. D80 beats per minute

In a eukaryotic cell, where does transcription take place?

1. AIn the Golgi apparatus
2. BIn the lysosomes
3. COn ribosomes in the cytoplasm
4. DIn the nucleus

What happens in the Calvin cycle of photosynthesis?

1. AGlucose is broken down to release energy
2. BLight is absorbed by chlorophyll
3. CWater is split to release oxygen
4. DCO₂ is built into sugar using ATP and NADPH

Mature human red blood cells have no nucleus and no mitochondria. What follows from this?

1. AThey keep making new haemoglobin throughout their life
2. BThey make ATP by aerobic respiration using the oxygen they carry
3. CThey live longer than almost all other body cells
4. DThey cannot divide and make their ATP by glycolysis only

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ANoncompetitive inhibition
2. BCompetitive inhibition
3. CDenaturation by heat
4. DSubstrate saturation