Biology for nursing entrance exams worksheet with answers

Which type of microscope is needed to see a virus?

1. AA magnifying glass
2. BA light microscope
3. CAn electron microscope
4. DA dissecting microscope

Which of these diseases is caused by a virus?

1. AAthlete's foot
2. BTuberculosis
3. CInfluenza
4. DMalaria

What is cytokinesis?

1. AThe condensing of chromosomes in prophase
2. BThe pairing of homologous chromosomes
3. CThe copying of DNA before division
4. DThe division of the cytoplasm into two cells

What is the difference between an antiseptic and a disinfectant?

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

During hard exercise, muscle cells run short of oxygen. What do they produce from glucose instead?

1. ALarge amounts of ATP and oxygen
2. BLactic acid (lactate) and a small amount of ATP
3. CAlcohol and carbon dioxide
4. DGlycogen and water

Why must human gametes be haploid?

1. ASo that the gametes can divide quickly by mitosis
2. BSo that the zygote has twice the normal number of chromosomes
3. CSo that the gametes can make more proteins
4. DSo that the zygote has the normal number of 46 chromosomes

In uncontrolled diabetes, glucose appears in the urine and the person passes large volumes of urine. What is the best explanation?

1. AGlucose is broken down into water in the bladder
2. BGlucose in the kidney filtrate holds water by osmosis
3. CInsulin makes the kidneys filter more blood
4. DGlucose makes the kidneys absorb more water

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

1. A1024
2. B20
3. C100
4. D512