Робочий аркуш «Біологія для вступних іспитів на медсестринство» з відповідями

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

Що з наведеного є грибом?

1. AВірус грипу
2. BEscherichia coli
3. CАмеба
4. DДріжджі

In science, what is an observation?

1. AA conclusion drawn before any data are collected
2. BA rule that explains all known facts
3. CA guess about why something happens
4. DInformation gathered with the senses or instruments

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt makes the DNA strands stick together
2. BIt works only in the dark, like the bacteria it comes from
3. CIt survives the high temperatures used to separate the strands
4. DIt copies RNA as well as DNA

What happens to an enzyme after it has catalysed a reaction?

1. AIt is broken down into amino acids
2. BIt is released unchanged and can be used again
3. CIt changes into the substrate
4. DIt becomes part of the product and leaves with it

A patient's blood type is B positive. What does this mean?

1. ATheir red cells carry no antigens at all
2. BTheir red cells carry the B antigen and the RhD antigen
3. CTheir plasma contains anti-B antibodies
4. DTheir red cells carry the A antigen and no RhD antigen

A leaf with green and white areas is kept in light and then tested with iodine. Only the green areas turn blue-black. What does this show?

1. AChlorophyll is needed for photosynthesis
2. BWhite areas store more starch than green areas
3. CLight is not needed for photosynthesis
4. DIodine destroys chlorophyll in the leaf

A drug lowered blood pressure in a study of 20 men aged 40 to 50. Why might the result not apply to women over 70?

1. AThe study had a dependent variable
2. BThe results were too precise to be trusted
3. CBlood pressure cannot be measured in older women
4. DThe sample did not represent that group