ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

In science, what is an observation?

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

How many strands does an RNA molecule usually have?

1. ATwo
2. BThree
3. COne
4. DFour

What are stomata?

1. AHairs on roots that absorb minerals
2. BGreen structures in the leaf that store starch
3. CSmall pores in leaves that allow gas exchange
4. DTubes that carry water up the stem

Why can DNA profiling (fingerprinting) identify individual people?

1. AEach person's genes code for different amino acids
2. BDNA in blood differs from DNA in skin
3. CEvery person has a different number of chromosomes in their cells
4. DRepeated non-coding DNA regions vary in length between people

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

1. ASeedlings given plain water will die within a week
2. BSalt water is made of sodium chloride and water
3. CBean seedlings need sunlight and water to grow well
4. DSeedlings given salt water will grow less than those given plain water

يحمل شخص فصيلة دمه AB مستضدّي A وB كليهما على الكريات الحمراء. ما نوع هذه الوراثة؟

1. Aوراثة مرتبطة بالجنس
2. Bالسيادة غير التامة
3. Cالسيادة التامة لـ A على B
4. Dالسيادة المشتركة

أعطى طالب سمادًا لنباتي طماطم ولم يعطه لنباتين آخرين. نمت النباتات المسمَّدة أطول. ما أبرز نقاط الضعف في استنتاج أن السماد يزيد النمو؟

1. Aلم يكن هناك متغير مستقل
2. Bكان ينبغي إعطاء السماد للنباتات الأربعة جميعها
3. Cلا يمكن قياس الطول بدقة
4. Dحجم العينة أصغر من أن يستبعد أثر الصدفة

Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?

1. AAmpicillin makes some bacteria take up the plasmid
2. BAll the bacteria die, and the colonies are fungi
3. CThe plasmid kills the bacteria that do not grow
4. DOnly the bacteria that took up the plasmid can survive