ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is a monosaccharide?

1. AA single sugar unit, such as glucose
2. BTwo sugars joined together, such as sucrose
3. CA chain of many amino acids
4. DA fat made of glycerol and fatty acids

ما المونومرات المكوّنة للأحماض النووية مثل DNA؟

1. Aالأحماض الأمينية
2. Bجزيئات الغلوكوز
3. Cالنيوكليوتيدات
4. Dجزيئات الغليسرول

What is a model in science?

1. AA simplified representation of a real system
2. BA single measurement from an experiment
3. CAn exact copy that has no limitations
4. DThe control group of a study

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AThe pathogen has too few hosts to spread easily
2. BThe vaccine spreads from person to person
3. CThe pathogen mutates into a harmless form
4. DVaccinated people make antibodies for others

How can bacteria pass antibiotic-resistance genes directly to other bacteria?

1. ABy meiosis, forming gametes with new alleles
2. BBy conjugation, transferring plasmids through a pilus
3. CBy osmosis, moving genes in water
4. DBy mitosis, sharing copies of their chromosomes with neighbours

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AO or AB
2. BO only
3. CA or B
4. DA, B, AB or O

A new infectious agent passes through filters that trap bacteria, does not grow on nutrient agar and multiplies only inside living cells. What is it most likely to be?

1. AA bacterium
2. BA fungus
3. CA virus
4. DA protozoan

Why is ATP described as an energy carrier rather than a long-term energy store?

1. AATP is stored in large amounts in fat tissue
2. BCells hold only a little and constantly recycle it from ADP
3. CATP can be made only in plants
4. DATP contains no energy in its bonds, so it cannot be stored