TEST : CHAPTER 1-4 BIOLOGY KSSM FORM 5

Micronutrients are needed in small quantity by plant. Which of the following is micronutrient?

• Nitrogen

• Phosphorus

• Magnesium

• Manganese

Diagram 5 shows a cross section of a leaf.

Why are cells X packed tightly together in an upright arrangement?

• to receive maximum amount of light

• to receive maximum amount of water

• to receive maximum amount of oxygen

• to receive maximum amount of carbon dioxide

The following shows process X which occurs in chloroplast and Diagram 12 shows the structure of chloroplast.

Which part labelled A, B, C and D involved in process X?

• A

• B

• C

• D

Diagram 11 shows a cross section of a leaf. Which structure A, B C, or D has a large number of chloroplast?

• A

• B

• C

• D

The following information is about photosynthesis.

"Plants require water and carbon dioxide to produce starch in the presence of sunlight and chlorophyll."

What will happen if the uptake of water decreases?

• production of oxygen decreases

• production of glucose increases

• the use of carbon dioxide increases

• concentration of hydrogen ions increases

Diagram 7 shows the graph of the relationship between absorption and release of carbon dioxide and light intensity. At which point is the absorption of carbon dioxide equals to the releases of carbon dioxide?

• A

• B

• C

• D

Diagram 6 is a graph showing the release and intake of oxygen by a plant. Which of the curves shows the effect of the increasing light intensity after midday

• A

• B

• C

• D

Diagram 23 shows an aphid feeding from tissue X of a plant.

What is tissue X?

• Xylem

• Cortex

• Phloem

• Epidermis

Which ions involves in the opening and closing of stomata?

• sodium ion

• chloride ion

• calcium ion

• potassium ion

Which statement explains why plants are able to grow well in a green house?

• Increase the concentration of oxygen for photosynthesis to take place

• Decrease the light intensity which effect the rate of photosynthesis

• Concentration of carbon dioxide is fixed at 0.03% for photosynthesis to take place

• Increase in the temperature will affect the rate of photosynthesis