Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan percuma untuk dicetak: 8 soalan dari mudah hingga tahap peperiksaan, dengan skema jawapan. Cetak atau simpan sebagai PDF.

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Untuk pensyarah dan guru: percuma untuk dicetak, disalin dan digunakan di dalam kelas. Setiap lembaran kerja baharu mempunyai nilai baharu dan skema jawapannya sendiri. Pautan ke ExamProblems di halaman kursus anda amat dihargai.

Nama: ____________________   Tarikh: ____________

1.Mudah

In an enzyme reaction, what is the substrate?

  1. AThe product released at the end
  2. BThe substance that the enzyme acts on
  3. CThe part of the enzyme that changes shape
  4. DThe gene that codes for the enzyme
2.Mudah

What does gel electrophoresis separate?

  1. ABlood into plasma and cells
  2. BCells by their shape
  3. CDNA fragments by size
  4. DChromosomes by their colour
3.Mudah

In biology, what is a clone?

  1. AA cell with an extra chromosome
  2. BA genetically identical copy of an organism, cell or gene
  3. CAn organism that carries genes from two different species
  4. DAn offspring of two different parents
4.Sederhana

A person catches chickenpox once and does not usually become ill with it again. Why?

  1. AThe virus stays in the blood and kills new viruses
  2. BThe skin becomes thicker after the first infection
  3. CMemory cells give a faster, stronger response the next time
  4. DAntibodies from the first infection turn into new viruses
5.Sederhana

There are 64 possible codons but only about 20 amino acids. What does this tell you about the genetic code?

  1. AOnly 20 of the codons are ever used
  2. BMost amino acids are coded for by more than one codon
  3. CEach amino acid has exactly three codons
  4. DEach codon codes for more than one amino acid at the same time
6.Sederhana

In gel electrophoresis, why does DNA move towards the positive electrode?

  1. ADNA is pulled by gravity through the gel
  2. BDNA has a positive charge from the nitrogen bases it contains
  3. CDNA has no charge and moves at random
  4. DDNA has a negative charge from its phosphate groups
7.Sukar

In an onion root tip, 90 of 100 cells are in interphase and 10 are in mitosis. If the whole cell cycle takes 20 hours, about how long does mitosis last?

  1. A2 hours
  2. B0.5 hours
  3. C10 hours
  4. D18 hours
8.Sukar

Why are organ transplant patients usually given drugs that suppress the immune system?

  1. ATheir immune system would recognise the donor cells as foreign
  2. BThe donor organ contains bacteria that must be killed
  3. CThe drugs help the new organ to grow larger
  4. DThe drugs change the donor organ's DNA so that it matches the patient

Kunci jawapan

  1. 1. B · The substance that the enzyme acts on
  2. 2. C · DNA fragments by size
  3. 3. B · A genetically identical copy of an organism, cell or gene
  4. 4. C · Memory cells give a faster, stronger response the next time
  5. 5. B · Most amino acids are coded for by more than one codon
  6. 6. D · DNA has a negative charge from its phosphate groups
  7. 7. A · 2 hours
  8. 8. A · Their immune system would recognise the donor cells as foreign

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