ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What does sterilisation mean?

1. AKilling or removing all microorganisms, including spores
2. BReducing the number of microbes on the skin before an injection
3. CWashing away visible dirt with water
4. DKilling only the viruses on a surface

الخاصية الأسموزية هي انتشار أي مادة عبر غشاء شبه نفّاذ (انتقائي النفاذية)؟

1. Aالماء
2. Bأيونات الصوديوم
3. Cالبروتينات
4. Dالغلوكوز

In genetics, what is a carrier?

1. AA person with two recessive alleles who has the disorder
2. BA person with one recessive allele for a disorder but no symptoms
3. CA person who has a dominant disorder
4. DA person who has lost both alleles for the gene, so shows no trait

What is a prion?

1. AA fungal spore that infects the brain
2. BA very small virus with a DNA genome
3. CA bacterium without a cell wall that lives inside nerve cells
4. DA misfolded protein that causes normal proteins to misfold

What does the enzyme lipase break down?

1. AFats into fatty acids and glycerol
2. BStarch into sugars
3. CDNA into nucleotides
4. DProteins into amino acids and peptides

What do nitrogen-fixing bacteria do?

1. AThey convert nitrogen gas into compounds that plants can use
2. BThey turn carbon dioxide into sugar
3. CThey break down proteins into glucose
4. DThey release nitrogen gas from dead organisms into the air

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

1. A1000 mg
2. B10 mg
3. C100 mg
4. D0,1 mg

A restriction enzyme cuts at three sites in a linear piece of DNA. How many fragments are produced?

1. A4
2. B2
3. C3
4. D6