ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is a eukaryote?

1. AA virus that infects animal cells
2. BAn organism that lives only in extreme heat
3. CAn organism made of a single cell without a nucleus
4. DAn organism whose cells have a nucleus

ضد أي نوع من الكائنات تكون المضادات الحيوية فعّالة؟

1. Aالفيروسات
2. Bمسببات الحساسية من حبوب اللقاح
3. Cالبكتيريا
4. Dكل أنواع الكائنات الدقيقة بالتساوي

What is phagocytosis?

1. AA cell dividing into two identical daughter cells
2. BA cell taking in small droplets of fluid
3. CA cell engulfing large particles such as bacteria
4. DA cell releasing hormones by exocytosis

ماذا يحدث في تفاعل التصنيع بنزع الماء؟

1. Aيتفكك بوليمر بإضافة جزيء ماء
2. Bيُنزع الماء من الخلية بالأسموزية
3. Cتجفّ الخلية وتموت
4. Dيرتبط مونومران ويُطلق جزيء ماء

Why do many plants close their stomata on hot, dry days?

1. ATo release more oxygen
2. BTo speed up photosynthesis
3. CTo take in more carbon dioxide
4. DTo reduce water loss

Which statement about Archaea is correct?

1. AThey are eukaryotes that have a nucleus and membrane-bound organelles
2. BThey are multicellular plants
3. CThey are prokaryotes, and many live in extreme environments
4. DThey are a type of virus

Why are there usually far fewer top predators than herbivores in an ecosystem?

1. AHerbivores eat the young of top predators
2. BEnergy is lost at each step, leaving little for the top level
3. CTop predators need less energy than herbivores
4. DTop predators reproduce faster than herbivores, so they die sooner

Starch and cellulose are both made of glucose. Why can humans digest starch but not cellulose?

1. ACellulose contains no glucose units at all, only fructose
2. BHumans lack an enzyme that breaks the bonds in cellulose
3. CCellulose dissolves in water but starch does not
4. DStarch is a protein, and cellulose is a lipid