解答つき看護学校入学試験のための生物ワークシート

What is a monosaccharide?

1. ATwo sugars joined together, such as sucrose
2. BA fat made of glycerol and fatty acids
3. CA chain of many amino acids
4. DA single sugar unit, such as glucose

What are round (spherical) bacteria called?

1. ABacilli
2. BSpirilla
3. CVibrios
4. DCocci

What is a karyotype?

1. AA diagram of a family's inheritance pattern
2. BA picture of a cell's chromosomes arranged in pairs by size
3. CA map of the organelles inside a cell
4. DA list of all the proteins that a cell makes during its life

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

1. AEach amino acid has exactly three codons
2. BEach codon codes for more than one amino acid at the same time
3. CMost amino acids are coded for by more than one codon
4. DOnly 20 of the codons are ever used

Why does ice float on liquid water?

1. AIce contains more air than liquid water
2. BIce molecules are lighter than liquid water molecules
3. CIce is denser than liquid water
4. DHydrogen bonds hold ice in an open, less dense structure

Which is the correct way to write the scientific name of the gut bacterium?

1. AEscherichia Coli
2. BEscherichia coli
3. Ccoli Escherichia
4. DEscherichia Coli

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese cells have no mitochondria
2. BThese tissues also contain rapidly dividing cells
3. CThese cells divide by meiosis instead of mitosis
4. DThese tissues are made only of haploid cells

各酵素が通常 1 種類の基質にしか作用しないのはなぜか。

1. A活性部位の形が、その基質にだけ合うから
2. B基質は酵素自身がつくるから
3. C各酵素が、その基質のDNAを含んでいるから
4. D酵素は核の中でしかはたらけないから