3. (c) The photomicrograph below shows the cells of a plant at different stages of
Referring to the cells labelled (1) to (4), arrange them in the correct
sequence of mitosis.
(ii) (1) Compare the DNA content of cell (1) and ce
4. (a) The following is a simplified diagram of a cross section of the human
State two functions of structure A.
(ii) Organ B belongs to the digestive system. Briefly describe how it
performs its function.
(iii) With r
Transpiration / Transport / Support
3. (b) The experimental set-up shown below is used to study the effect of different
environmental factors on the rate of water loss of a leafy shoot:
Briefly describe how you can make use of this set-up to meas
3. (a) The diagram below show a group of air sacs of the lung and a villus of the
small intestine with their associated capillaries. The arrows indicate the
direction of blood flow. (The two diagrams are not drawn to the same
Name one sub
4. (c) Four test tubes containing equal volumes of coagulated egg white cubes
were set up. Different solutions were then added to the test tubes and they
were allowed to stand at 30. The table below shows the solutions added
to the test tubes and the
4. (b) The graph below shows the net uptake and net release of carbon dioxide of
an actively growing plant over a 24-hour period:
At what time(s) of the day was there no net uptake and no net release
of carbon dioxide by the plant?
1. (a) Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide
into water and oxygen. In an experiment to study the activity of catalase
in potato tubers, a 2 cm long cylinder of potato tissue was prepared using a
cork borer. The cyli
1. (b) The bar chart below shows the composition of food eaten by an overweight
child for lunch:
(1) What is food substance Q?
(2) Explain its importance to the body.
The child often eats milk chocolate as a snack.
3. (b) A 10 cm long potato strip was placed in a sugar solution. Its length was
measured at regular intervals over a period of 3 hours. The results are
shown in the table below:
Length of the potato strip (cm)
2. (b) Pollen grains from a flower of an orange tree were transferred to a flower of
another orange tree. After some time, a fruit was formed. The diagram
below show the structure of an orange flower and the transverse section of
Parallax Lab Questions
14a. The closer the distance of the near object is, the least amount of centimeters the far object
appears. The further away the near object moves back, the distance between the distant object
Analysis of Newspaper Editorial
*Notes:  Select 2-5 newspaper editorials that were published in 2015/2016.
 Fill in the boxes of the worksheet by hand (one worksheet per editorial).
 Attach the hardcopies of the s
S6 Biology Assignment (Transport in plants)
Please complete the assignment during the holidays and submit this assignment together with the
previous one (Transport in Animals) on 23/4/2003.
(Please feel free to contact when you come across any problems in
2007 plant support
Support in Plants
A. Importance of support in terrestrial plants
In the terrestrial environment soil offers support to plants by providing substrate for anchorage of
their root system. However, air with low den
7 Transport in plants
1 All of the following statements are true but which one is the most precise?
Water is conducted through plant stems in
(a) the xylem, (b) vascular bundles, (c) vessels, (d) veins.
2 Which of the follow