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ANATOMY OF FLOWERING PLANTS

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  What is Plant Anatomy? Plant anatomy is the study of internal structure and organization of tissues in plants. It helps in understanding: Functional adaptation Transport system Growth patterns Tissue Organization in Flowering Plants Flowering plants have three major tissue systems :  Epidermal Tissue System Components: Epidermis Single layer of compact cells No intercellular spaces Covered by cuticle (except roots) Cuticle Made of cutin Prevents water loss Stomata Present mainly on leaves Composed of guard cells Regulate: Gas exchange Transpiration Root hairs Extensions of epidermal cells Increase surface area for absorption Trichomes (in stem) Hair-like structures Protection + reduce transpiration  Functions: Protection Water conservation Gas exchange 🌿 B. Ground Tissue System  Types of Ground Tissue: 1. Parenchyma Living cells, thin cell wall Large vacuole Functions: Storage Photosynthesis ( chlorenchyma ) Air storage ( aerenchyma ) 2. Collenchyma Living cell...
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CBSE Sample Paper for Class 9 Maths

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Time: 3 Hours

Maximum Marks: 80

General Instructions:

  • All questions are compulsory.
  • The question paper is divided into four sections: A, B, C, and D.
  • Section A contains 10 objective questions of 1 mark each.
  • Section B contains 6 short answer questions of 2 marks each.
  • Section C contains 10 long answer questions of 3 marks each.
  • Section D contains 4 essay type questions of 4 marks each.

Section A

  1. Find the value of 2x + 3y, if x = 2 and y = 3.
  2. Simplify the expression: 5x + 7 - 3x - 4
  3. Find the HCF of 24 and 36.
  4. Find the LCM of 12 and 15.
  5. Convert 3/4 into decimal form.
  6. Find the area of a triangle with base 5 cm and height 4 cm.
  7. Find the volume of a cube with side 5 cm.
  8. Construct an angle of 60 degrees using ruler and compass.
  9. Define a linear equation in two variables.
  10. Write the formula for finding the distance between two points.

Section B

  1. Solve the following equation: 2x + 3 = 11
  2. Find the sum of all the prime numbers less than 100.
  3. Find the mean of the following numbers: 2, 4, 6, 8, 10
  4. Find the median of the following numbers: 12, 14, 16, 18, 20
  5. Find the mode of the following numbers: 11, 12, 13, 14, 15, 16, 17, 17
  6. Construct a triangle ABC, where AB = 5 cm, BC = 6 cm and AC = 7 cm.

Section C

  1. Solve the following system of equations: x + y = 5 2x - y = 7
  2. Find the quadratic equation whose roots are -2 and 3.
  3. Find the value of x for which the following expression is a perfect square: x^2 + 6x + 9
  4. Find the area of a circle with radius 7 cm.
  5. Find the volume of a cone with radius 5 cm and height 12 cm.
  6. Prove that the sum of the angles of a triangle is 180 degrees.
  7. Construct a parallelogram ABCD, where AB = 6 cm, BC = 7 cm and AD = 8 cm.
  8. Find the distance between the points (2, 3) and (4, 5).
  9. Convert the following decimal into fraction form: 0.75
  10. Find the mean, median and mode of the following data: 10, 12, 14, 16, 18, 20, 22, 24, 26

Section D

  1. Prove that the Pythagorean Theorem is true.
  2. Construct a right-angled triangle ABC, where AB = 5 cm, AC = 12 cm and angle BAC = 90 degrees.
  3. Find the equation of the line passing through the points (2, 3) and (4, 5).
  4. Solve the following quadratic equation: x^2 + 5x - 6 = 0

Please note that this is just a sample paper. The actual exam paper may contain different types of questions.


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