Biology for nursing entrance exams worksheet with answers

Who first worked out the basic rules of inheritance by breeding pea plants?

1. ACharles Darwin
2. BRobert Hooke
3. CGregor Mendel
4. DLouis Pasteur

Which organelle makes lipids and helps break down drugs and toxins in liver cells?

1. ANucleolus
2. BCentriole
3. CRough endoplasmic reticulum
4. DSmooth endoplasmic reticulum

What is diffusion?

1. AMovement of particles from a lower to a higher concentration
2. BMovement of particles from a higher to a lower concentration
3. CThe cell swallowing large particles in a vesicle
4. DMovement of water through a membrane using ATP

By which process does oxygen enter a cell and carbon dioxide leave it?

1. AEndocytosis in small vesicles
2. BFacilitated diffusion through glucose carriers
3. CSimple diffusion through the lipid bilayer
4. DActive transport by membrane pumps

In a pedigree, a trait appears in every generation, and every affected child has at least one affected parent. Which inheritance pattern is most likely?

1. AAutosomal dominant
2. BAutosomal recessive
3. CX-linked recessive
4. DA new mutation in each generation

What does the enzyme lipase break down?

1. AProteins into amino acids and peptides
2. BDNA into nucleotides
3. CStarch into sugars
4. DFats into fatty acids and glycerol

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

1. A3
2. B2
3. C4
4. D6

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. AAll pink, like the parents
2. B1 red : 2 pink : 1 white
3. C1 red : 1 white
4. D3 red : 1 white