STPM Biology 2013 Term 1 MCQ

Which proteins is non-globular?

• Lipase

• Cellulase

• Collagen

• Myoglobin

Two adjacent cells P and Q with their respective solute and pressure potential values are represented by the diagram. Choose the correct answer.

• A

• B

• C

• D

Which sugar is a monosaccharide?

• Lactose

• Maltose

• Sucrose

• Galactose

If a DNA molecule contains 20% G, what is the percentage of A in the DNA?

• 60

• 20

• 25

• 30

Which statement is true of a prokaryotic cell?

• Its DNA is linear.

• Its cell wall is made up of chitin.

• Its cytoplasm possesses simple protein network.

• It contains smooth and rough endoplasmic reticulum.

Choose the correct answer.

• A

• B

• C

• D

Which is not true of parenchyma cells?

• Most fleshy tissue of fruits is composed mostly of parenchyma cells.

• Parenchyma cells have thicker primary walls than that of collenchyma cells.

• Photosynthesis occurs within the chloroplast of parenchyma cells of the leaf.

• Most parenchyma cells retain the ability to divide and differentiate into other types of

  plant cells.

Which of the following can pass directly through the plasma membrane?

I Lipid

II Water

III Glucose

IV Hydrogen ions

• I and II

• I and III

• II and IV

• III and IV

Choose the correct answer

• A

• B

• C

• D

Which of the following is a coenzyme?

• Zinc

• Haem

• Iodine

• Vitamin B6