ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

Which of these is qualitative data?

1. AThe patient weighs 68 kg
2. BThe wound is 3 cm long
3. CThe urine sample is dark yellow
4. DThe pulse rate is 72 beats per minute

ما التركيب الرئيس للغشاء الخلوي؟

1. Aطبقة صلبة من ألياف السليلوز واللجنين
2. Bصفيحة واحدة من جزيئات النشا
3. Cطبقة فوسفوليبيدية مزدوجة تتخللها بروتينات
4. Dجدار سميك من الببتيدوغليكان

What does homozygous mean?

1. AHaving an extra chromosome
2. BHaving only one copy of a gene
3. CHaving two identical alleles for a gene
4. DHaving two different alleles for a gene

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA controlled experiment
2. BA case report
3. CAn observational study
4. DA survey

What is a chromosomal translocation?

1. AA piece of one chromosome attaches to a non-matching chromosome
2. BA piece of a chromosome is flipped around in place
3. CA piece of a chromosome is copied twice and stays in the same place
4. DOne DNA base is replaced by another base

To insert a human gene into a bacterial plasmid, scientists cut both the gene and the plasmid with the same restriction enzyme. Why?

1. ASo the gene is turned into RNA
2. BSo both pieces become exactly the same length
3. CSo the cut ends match and can join together
4. DSo the plasmid loses all its genes

The field of view of a microscope is 0,5 mm wide. About 10 cells fit across it in a line. What is the approximate width of one cell?

1. A5 µm
2. B50 µm
3. C0,5 µm
4. D500 µm

An old idea says giraffes got long necks because each one stretched to reach leaves and passed the longer neck to its young. Why is this idea rejected?

1. AChanges acquired in a lifetime are not passed on in the genes
2. BGiraffes do not eat leaves from tall trees, so stretching is not needed
3. COnly plants can pass on traits to offspring
4. DNeck length is not affected by any genes