ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What are round (spherical) bacteria called?

1. ABacilli
2. BSpirilla
3. CCocci
4. DVibrios

What is a model in science?

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

أين يوجد معظم DNA في الخلية حقيقية النواة؟

1. Aفي الجدار الخلوي
2. Bفي الغشاء الخلوي
3. Cفي النواة
4. Dفي الجسيمات الحالّة

During childbirth, pressure on the cervix causes oxytocin release, which causes stronger contractions and more pressure. What kind of control is this?

1. APositive feedback
2. BNatural selection
3. CHomeostatic balance
4. DNegative feedback

Yeast in bread dough breaks down sugar without oxygen. What does it produce?

1. AOxygen and water
2. BEthanol and carbon dioxide
3. CGlucose and oxygen
4. DLactic acid and carbon dioxide

A person catches chickenpox once and does not usually become ill with it again. Why?

1. AThe skin becomes thicker after the first infection
2. BMemory cells give a faster, stronger response the next time
3. CThe virus stays in the blood and kills new viruses
4. DAntibodies from the first infection turn into new viruses

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

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

يبيّن رسم بياني أن نشاط إنزيم يرتفع من 20 °C إلى ذروة عند 37 °C ثم ينخفض بحدة. ما أفضل تفسير؟

1. Aيواصل الإنزيم التسارع كلما ارتفعت الحرارة
2. Bيعمل الإنزيم أفضل ما يكون عند 20 °C ويتلف عند 37 °C
3. Cلا أثر لدرجة الحرارة في نشاط الإنزيم
4. Dالمثلى نحو 37 °C؛ والحرارة الأعلى تمسخه