Biology for nursing entrance exams worksheet with answers

What is the main material in the cell walls of fungi?

1. ACellulose
2. BChitin
3. CPeptidoglycan
4. DCollagen

What is peer review?

1. AExperts checking a study before it is published
2. BAsking patients for their opinion of a treatment
3. CRepeating your own experiment many times
4. DReading a textbook to learn a topic

What is an organism's genotype?

1. AThe environment in which it lives
2. BThe number of cells in its body
3. CThe traits that can be seen or measured
4. DThe alleles it carries for a trait

Which statement about Archaea is correct?

1. AThey are eukaryotes that have a nucleus and membrane-bound organelles
2. BThey are prokaryotes, and many live in extreme environments
3. CThey are a type of virus
4. DThey are multicellular plants

What does Mendel's law of segregation state?

1. AGenes on different chromosomes are always inherited together
2. BDominant alleles are more common in a population than recessive ones
3. CEach gamete receives both alleles of every gene
4. DThe two alleles of a gene separate so each gamete gets only one

Why does a very high temperature stop most enzymes from working?

1. AThe enzyme is denatured: its active site changes shape
2. BHeat makes the enzyme divide into amino acids instantly
3. CThe enzyme moves too slowly to meet the substrate
4. DThe substrate turns into a different enzyme

Why can O-negative red blood cells be given to patients of almost any blood type in an emergency?

1. AThey have no haemoglobin to react with
2. BTheir plasma contains anti-A and anti-B antibodies
3. CThey carry no A, B or RhD antigens
4. DThey carry all of the A, B and RhD antigens

The number of bacteria in a sample rises from 200 to 500. What is the percentage increase?

1. A250%
2. B60%
3. C150%
4. D300%