ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What are cilia?

1. AOpenings in the nuclear envelope
2. BFolds of the inner mitochondrial membrane that make ATP
3. CShort hair-like projections that beat in waves
4. DSmall round sacs that hold digestive enzymes

What is the single most important way to prevent the spread of infection in hospitals?

1. AWearing a hair net
2. BOpening the windows
3. CHand hygiene
4. DGiving every patient antibiotics

Which list gives the main taxonomic ranks from broadest to most specific?

1. ADomain, kingdom, phylum, class, order, family, genus, species
2. BKingdom, domain, class, phylum, family, order, species, genus
3. CDomain, phylum, kingdom, order, class, genus, family, species
4. DSpecies, genus, family, order, class, phylum, kingdom, domain

What is the difference between an antiseptic and a disinfectant?

1. AAntiseptics are used on living tissue; disinfectants are used on objects
2. BAntiseptics kill all spores; disinfectants kill none
3. CAntiseptics are antibiotics; disinfectants are vaccines
4. DAntiseptics are used on objects and floors; disinfectants are used on skin

Why do root hair cells have long, thin extensions?

1. ATo anchor the plant firmly against strong winds and rain
2. BTo store starch for the winter
3. CTo carry out photosynthesis underground
4. DTo increase the surface area for absorbing water

What are introns?

1. ACodons that tell the ribosome to stop translation
2. BShort pieces of DNA made on the lagging strand
3. CCoding sections joined together to form the mature mRNA
4. DNon-coding sections removed from pre-mRNA before translation

A solution contains 5 mg of a substance in every millilitre. How many milligrams are in 0,02 L of the solution?

1. A0,1 mg
2. B100 mg
3. C10 mg
4. D1000 mg

Why do cells get far more ATP from glucose when oxygen is present than when it is absent?

1. AWithout oxygen only glycolysis runs, giving a net of 2 ATP per glucose
2. BWithout oxygen, glucose cannot enter the cell or be broken down at all
3. CWithout oxygen the Krebs cycle runs faster but makes less ATP
4. DOxygen itself is converted into ATP in the mitochondria