ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is a neuron?

1. AA muscle cell that contracts
2. BA blood cell that carries oxygen around the body
3. CA nerve cell that carries electrical signals
4. DA bone cell that stores calcium

Which organelle breaks down fatty acids and hydrogen peroxide?

1. ARibosome
2. BPeroxisome
3. CCentriole
4. DChloroplast

Who first used the word "cells" after looking at thin slices of cork under a microscope?

1. ARobert Hooke
2. BLouis Pasteur
3. CGregor Mendel
4. DCharles Darwin

What happens when a ribosome reaches a stop codon on the mRNA?

1. ATranslation ends and the protein is released
2. BThe mRNA is copied back into DNA
3. CA special amino acid is added to end the chain
4. DThe ribosome goes back to the start codon

What is a random sample?

1. AA group where everyone in the population has an equal chance of being chosen
2. BA group chosen because they are likely to support the hypothesis
3. CA group chosen by the researcher because they are easy to reach and willing
4. DA group made only of people who volunteer to take part

What are introns?

1. ACoding sections joined together to form the mature mRNA
2. BShort pieces of DNA made on the lagging strand
3. CNon-coding sections removed from pre-mRNA before translation
4. DCodons that tell the ribosome to stop translation

A solution contains 5 mg of a substance in every millilitre. How many milligrams are in 0,02 L of the solution?

1. A1000 mg
2. B100 mg
3. C0,1 mg
4. D10 mg

During the Industrial Revolution, soot darkened tree trunks in parts of England, and dark peppered moths became more common than pale ones. What best explains this?

1. AThe soot settled on the pale moths and slowly turned them dark
2. BThe moths chose to become dark to hide
3. CBirds found and ate fewer dark moths on the dark trunks
4. DDark moths were produced by the polluted air