ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What does sterilisation mean?

1. AKilling only the viruses on a surface
2. BReducing the number of microbes on the skin before an injection
3. CWashing away visible dirt with water
4. DKilling or removing all microorganisms, including spores

In science, what is an observation?

1. AInformation gathered with the senses or instruments
2. BA conclusion drawn before any data are collected
3. CA guess about why something happens
4. DA rule that explains all known facts

ماذا يفعل الجسيم الحال (الليسوسوم)؟

1. Aيخزّن المعلومات الوراثية للخلية
2. Bيلتقط طاقة الضوء للخلية
3. Cيهضم الفضلات والأجزاء البالية
4. Dيصنع البروتينات من الأحماض الأمينية

Which is an example of negative feedback?

1. ASweating when body temperature rises
2. BA wound becoming more inflamed over time
3. CContractions growing stronger during labour
4. DBlood clotting speeding up once it starts

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

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

A student's hypothesis is "Salt water slows the growth of bean seedlings." Which is a prediction based on it?

1. ASalt water is made of sodium chloride and water
2. BSeedlings given plain water will die within a week
3. CSeedlings given salt water will grow less than those given plain water
4. DBean seedlings need sunlight and water to grow well

Why can O-negative red blood cells be given to patients of almost any blood type in an emergency?

1. AThey carry all of the A, B and RhD antigens
2. BTheir plasma contains anti-A and anti-B antibodies
3. CThey carry no A, B or RhD antigens
4. DThey have no haemoglobin to react with

وُضعت خلية نباتية في ماء نقي. لماذا لا تنفجر كما تنفجر الخلية الحيوانية؟

1. Aتضخ فجوتها كل الماء إلى الخارج فورًا
2. Bيقاوم جدارها الخلوي امتلاء الخلية فتصبح صلبة ممتلئة (منتفخة)
3. Cلا يستطيع الماء دخول الخلايا النباتية
4. Dليس للخلايا النباتية غشاء خلوي