生物 2011 年 DSE、CE 選擇題

1.

If some cyanide (a chemical that inhibits respiration) is applied to a plant, less water will be absorbed by the plant because

2.

Which of the following comparisons between a prokaryotic cell and a eukaryotic cell is/are correct?

(1)Both have cell wall.

(2)Both have nucleic acid as the genetic material.

(3)A prokaryotic cell has a nuclear membrane but a eukaryotic cell does not.

3.

The diagram below shows a set-up in which a dialysis tubing containing 10% sucrose solution is placed in distilled water:

Which of the following graphs shows the change in water potential inside the dialysis tubing?

4.

Which of the following are the fates of photosynthetic products in plants?

(1)used for synthesising glycogen for storage

(2)used for synthesising cellulose, which is a component of the cell wall

(3)used for synthesising lipid, which is a component of the cell membrane

5.

Which of the following comparisons between the processes in a mitochondrion and a chloroplast is correct?

	Process in a mitochondrion	Process in a chloroplast
	It involves enzymes.	It does not involve enzymes.
	It is an anabolic process.	It is a catabolic process.
	It occurs in animal cells only.	It occurs in plant cells only.
	It converts chemical energy in food to that in ATP.	It converts light energy to chemical energy.

6.

Which element is not normally obtained by the roots of a plant from the soil?

7.

Which of the following are the practices of a ‘Low Carbon Lifestyle’?

(1)recycling used paper

(2)using public transport

(3)using an air-purifier at home

8.

Alcohol obtained from the fermentation of maize corn can be used as fuel. Which of the following are the advantages of obtaining fuel by this method?

(1)The source of this fuel is renewable.

(2)The production of the fuel does not require oxygen.

(3)Growing maize corn for fuel helps reduce global warming.

9.

Some plants are adapted to growing in flooded soil. Which of the following word equations represents the respiration of their root tissues?

10.

The following graph shows the net release of oxygen from a water plant from 5 °C to 30 °C :

Which of the following about the photosynthesis of this plant can be deduced from the graph?

(1)The rate of photosynthesis is zero at 5 °C.

(2)The rate of photosynthesis increases from 5 °C to 30 °C.

(3)The optimal temperature of this plant for photosynthesis is 30 °C.