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Biology Form 1 Question Paper

Biology Form 1

Course:Secondary Level

Exam Year:2006

IGUNGA GIRLS HIGH SCHOOL

FORM 1 BIOLOGY

CAT I THIRD TERM

INSTRUCTIONS
- Attempt ALL questions
- Wrong spelling will be penalised

1. If the size of your drawing is the same as that of the specimen, find out the magnification of your drawing (2mks)

2. Name the parts of the cell; (4mks)

i. Is a semi-permeable membrane

i. Without which the cell cannot perform its normal functions

3. By what process do the roots absorb water from the soil (2mks)

4. Distinguish between osmotic pressure and turgor pressure (4mks)

5. Write FIVE ways in which a leaf is adapted to its functions (5mks)

6. Explain what happens to glucose formed by photosynthesis in a dicotyledonous leaf (4mks)

7. Define the following and give an example (6mks)

a. Destarching
b. Heterotrophism
c. Photosynthesis

8. Describe how you would test for the following food substances (9mks)

a. Starch
b. Reducing sugars
c. Proteins

9. State the role of carbohydrates in a human diet (2mks)

ii. Name four sources of proteins (2mks)

iii. Explain three functions of proteins (3mks)

10. Photosynthesis occurs in two stages; namely? (2mks)

ii. Draw a clear graph showing the relationship between carbon (IV) oxide concetration (x-axis) and rate of photosynthesis (y-axis) (5mks)

Biology Form 1 Question Paper

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