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🧪 Lab 18 of 21 · Science Lab - Advance 3 · Class 10

Experiment 17 — Which Way Will It Grow?

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Topic: Biology · Class 10 · Control and coordination in plants: tropisms and auxin

Aim: Demonstrate phototropism with a proper control.

Daily: Every plant on a windowsill leans towards the glass. Farmers and gardeners use the same response when spacing crops and training creepers.

Question: A shoot bends towards light because auxin collects on…

Exp: Greater elongation on the shaded side tilts the shoot towards the light.

Question: Roots growing downwards show…

Question: The plant hormone responsible for phototropism is…

Exp: It promotes cell elongation.

Question: A tendril coiling around a support is…

Question: The folding of a touch-me-not leaf is…

Exp: It is not directional growth.

All activities in Science Lab - Advance 3

  1. What Next? Careers in Science
  2. Experiment 1 — Verify Ohm’s Law
  3. Experiment 2 — Series or Parallel?
  4. Experiment 3 — Choose the Right Fuse
  5. Experiment 4 — Make the Coil Spin
  6. Experiment 5 — Make Electricity from Movement
  7. Experiment 6 — Find the Image
  8. Experiment 7 — Correct the Vision
  9. Experiment 8 — Balance the Equation
  10. Experiment 9 — Read the pH
  11. Experiment 10 — Win the Metal from Its Ore
  12. Experiment 11 — Ionic or Covalent?
  13. Experiment 12 — Build a Carbon Compound
  14. Experiment 13 — Soap, Detergent and Hard Water
  15. Experiment 14 — Spot the Reaction Type
  16. Experiment 15 — Trace the Blood
  17. Experiment 16 — The Reflex Arc
  18. Experiment 17 — Which Way Will It Grow?
  19. Experiment 18 — From Pollen to Seed
  20. Experiment 19 — Mendel’s Peas
  21. Experiment 20 — Who Decides the Sex of the Child?

Practise for Class 10