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Homnet Question Paper

Homnet

Course:Biology

Exam Year:2012

HOMNET

HOMNET AUGUST 2012 PROGRAM
BIOLOGY FORM ONE WEEK TWO
MONDAY 20TH AUGUST 2012
1. Other than having many features in common, state the other characteristics of a species

2. State the functions of cristae in mitochondria.

3. The diagram below represents a cell organelle.

(i) Name the part labeled Y.
(ii) State the functions of the part labeled X.
TUESDAY 21ST AUGUST 2012
1. Name the organelle in which protein synthesis takes place

2. (a). State the function for co-factors in cell metabolism
(b). Give one example of a metallic co – factor
3. State the role of vitamin C in humans

WEDNESDAY 22ND AUGUST 2012
An experiment was set up in the experiment as show below.

The set up was left for 30 minutes.
a) State the expected results.

b) Explain your answer in (a) above

State the function of the organelles:
a) Lysosomes
b) Golgi apparatus

THURSDAY 23RD AUGUST 2012
1. Name two mineral elements that are necessary in the synthesis of chlorophyll.

2. The diagram below represents a cell.

(a) Name the parts labeled X and Y
X ……………………………………..
Y ……………………………………..
FRIDAY 24TH AUGUST 2012
1.a).What is diffusion

b) How do the following factors affect the rate of diffusion?
i) Diffusion gradient
ii) Surface area volume ratio
iii) Temperature

c) Outline three roles of active transport in the human body

HOPE YOU ENJOYED. Have a nice weekend

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