CHAPTER 4 : CARBON COMPOUND
1 (a) (i) the concentration
/ volume of glucose solution / size of conical flask
(ii) presence of yeast
(b)
Set
|
Solution in
the conical flask
|
Lime water
|
A
|
Cloudy solution
and smell of alcohol
|
Cloudy
|
B
|
Solution clear and
no smell of alcohol
|
Clear
|
(c) Yeast is needed in the preparation of
ethanol / carbon dioxide is released in the process of fermentation.
2) (a) P
(b) Extraction
(c) (i) to kill the microorganisms
(ii) to soften the oil palm fruits in order for
them to detach from the bunch easily
(d) Vitamin A / vitamin E
(e) To
produce biogas / to produce fertilizers
3) (a)
Butter
|
Margarine
|
|
Sources
|
animal
|
Plant
|
Structure of atom
|
Saturated fat with
single bond between carbon atom
|
Unsaturated fat
with at least one double bond between the carbon atom
|
Physical properties
|
Solid at room
temperature
|
Liquid at room
temperature
|
Effect on health
|
Increase level of
cholesterol
|
Decrease level of
cholesterol
|
(b)
·
Low
density cholesterol in the blood is slightly high.
·
Low density
cholesterol deposits on gall bladder as gall bladder stones
·
Low
density cholesterol deposits on the insides of the wall of the artery may cause
high blood pressure, heart disease, arteriosclerosis and coronary thrombosis
·
Use
margarine in making the cake and cookies
·
Add fiber,
fruits and, vegetables such as carrot into the cake
·
Eg: Apple
cake, Carrot cake
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