ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is transpiration?

1. AThe growth of roots towards water
2. BThe taking in of CO₂ for photosynthesis
3. CThe movement of sugars through the phloem to the roots
4. DThe loss of water vapour from the leaves of a plant

What is an organism's genome?

1. AA single gene on one chromosome
2. BAll of its genetic material
3. CThe proteins made by one cell
4. DThe traits that can be seen

What does transfer RNA (tRNA) do?

1. AIt brings amino acids to the ribosome
2. BIt joins two DNA strands together
3. CIt carries the code out of the nucleus
4. DIt copies DNA in the nucleus

يقرأ خيط DNA القالب T-A-C. ما كودون mRNA المقابل؟

1. AA-U-G
2. BA-T-G
3. CU-T-G
4. DT-A-C

What happens to a protein when it is denatured?

1. AIt loses some of its amino acids but keeps its folded shape
2. BIt turns into a carbohydrate
3. CIt becomes more active than before
4. DIt loses its 3D shape but keeps its amino acid sequence

The results of an experiment do not support the hypothesis. What should the scientist do next?

1. AReport that the hypothesis was proven correct
2. BRevise the hypothesis and test it again
3. CChange the data so they fit the hypothesis
4. DStop doing any further research on the question

People who carry one sickle cell allele are more resistant to malaria. Why is the allele common in regions where malaria is widespread?

1. APeople with two sickle alleles are fully healthy there
2. BThe allele is dominant, so it spreads by itself
3. CNatural selection favours the heterozygotes there
4. DMalaria causes the sickle cell mutation directly

A cell is 0,00002 m wide. Which value is equal to this width?

1. A2 µm
2. B0,2 mm
3. C200 µm
4. D20 µm