ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

ما الغرض من المجموعة الضابطة؟

1. Aتوفير خط أساس للمقارنة مع المجموعة المعالَجة
2. Bجعل التجربة تنتهي أسرع
3. Cالاستغناء عن الحاجة إلى فرضية
4. Dتلقّي أكبر جرعة ممكنة من المعالجة قيد الاختبار

في التجربة، ما المتغير التابع؟

1. Aالعامل الذي يغيّره الباحث عمدًا
2. Bالفرضية قيد الاختبار
3. Cأي عامل يُبقى ثابتًا
4. Dالعامل الذي يُقاس لمعرفة الأثر

What is the main job of the large central vacuole in a plant cell?

1. AIt captures light energy for photosynthesis
2. BIt stores water and keeps the cell firm
3. CIt assembles proteins from amino acids
4. DIt copies DNA before the cell divides

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

1. A72 beats per minute
2. B74 beats per minute
3. C80 beats per minute
4. D73 beats per minute

Lactose (milk sugar) is a disaccharide. Which two monosaccharides is it made of?

1. AFructose and galactose
2. BGlucose and galactose
3. CGlucose and fructose
4. DGlucose and glucose

Red-green colour blindness is X-linked recessive. A colour-blind woman (XᵇXᵇ) has children with a man with normal colour vision (XᴮY). What fraction of their sons is expected to be colour-blind?

1. AOne quarter
2. BAll
3. COne half
4. DNone

A pondweed plant is placed in water, and a lamp is moved closer to it. The plant gives off more bubbles per minute. What is the best conclusion?

1. AThe bubbles are oxygen, and the lamp heats the water until it boils
2. BThe bubbles are oxygen, and photosynthesis speeds up with more light
3. CThe bubbles are carbon dioxide, and respiration speeds up with more light
4. DThe bubbles are nitrogen, and light breaks down the plant cells

Why are mutations in mitochondrial DNA passed on only from mothers to their children?

1. AOnly women have mitochondria in their cells
2. BSperm cells contain no DNA at all
3. CThe zygote's mitochondria come from the egg
4. DMitochondrial DNA is on the X chromosome