9th Biology CBSE Guess paper for SA-1
1.State the reason of
introducing Italian bee variety in bee
farms.
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1
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3. State one importance of photo period in agriculture.
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4. Name one micronutrient and one
macronutrient which plants take from the soil.
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6.What is meant by the
term green manure ? State its role in agriculture.
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7.State two functions of
Vacuoles in a plant cell.
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8.List two characteristics
of cork cells which help them to
function as protective tissue ?
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9. What is composite
fish culture system ? State one
merit and one demerit
of such a system
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10. Name the energy currency of the cell. Which cell
organelle releases this currency?
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11. List any two methods adopted in farming for the
health of the cattle.
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12. List the two types of food requirements of dairy
animals.
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13. List two similarities between Mitochondria and
Plastids. 2
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14. Name the connective tissue which helps in repair of
tissues. State where this tissue is found.
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15. What is manure? How is it prepared?
State its role in changing the quality of soil of a field having excess of: (i)
Sand (ii) Clay.
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16. Make a table to show the
difference between Striated, Unstriated and Cardiac Muscles on the
basis of their structure and location in the body.
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17. Distinguish
between intercropping and mixed cropping.
List any two advantages of intercropping over mixed cropping.
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18. State three
management practices that are common in dairy and poultry farming.
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19.
Name the tissue responsible for flexibility in plants? How would you differentiate it from other
permanent tissues?
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20.
List any three desirable characters of bee varieties suitable for honey production?
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21.
List any three ways by which the insect pests attack the plants.
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Ans: Insect
pests destroy crops by the following ways:
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Sucking the cellular sap from various plant parts
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Cutting the roots, stem, and leaves of plants
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Boring into stems and fruits
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22. What is a
connective tissue? State it’s any two basic components. Differentiate
between Ligament and Tendon.
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3
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23. (a)
What are Lysosomes
? Why are they called suicide bags
of a cell ?
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(b) What
happens to the
dry raisins when
we put them
in plain water
for some time ? State the reason for
whatever is observed.
What would happen
if these raisins are not placed in concentrated salt
solution ?
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24. (a) What is endoplasmic reticulum ?
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(b) Describe its structure.
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(c) Name the two types of endoplasmic reticulum.
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(d) What crucial role does it play in the liver
cells of vertebrates?
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(e) What is membrane biogenesis?
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25. (a) What
is a cell ? Why is a cell called the structural and function unit of
life ?
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(b) Why is the plasma membrane called a
selectivity permeable membrane ?
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IX CBSE Solved Science Practice papers
SA-1
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Practice papers
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Answer
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Answer
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