Download App

The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Robert Hooke actually observed ________ of cells.
  • A
    Cell walls.
  • B
    Protoplasts.
  • C
    Wall-less cells.
  • D
    Walled cells.
✓

Answer

  1. Cell walls.

Explanation:

Robert Hook discovered cells in 1655 with the help of compound microscope. He was observing insects, sand, bird feathers, fossils and plants. Once he was observing a thin slice of cork under the microscope he found a framework similar to honeycomb-like structure. He named those structures as cells but those were actually non living cell walls.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from The Fundamental Unit of Life→The Fundamental Unit of Life — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

The gravitational force of attraction between two objects is x. Keeping the masses of the objects unchanged, if the distance between the objects is halved, then the magnitude of gravitational force between them will become:

→
One nm is equal to:
→

Haversian canals are present in:

  1. Cartilage.
  2. Ligament.
  3. Bone.
  4. Tendon.
→
Identify the sub-atomic particle(s) with no charge and relative mass equal to one among the following:
→

Matrix of connective tissue is produced by:

  1. Plasma cells
  2. Mast cell
  3. Fibroblasts
  4. Both (b) and (c)
→
Where do we generally mount the material on the slide:
→
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment:
→

The work done on an object does not depend on the:

  1. Displacement.
  2. Angle between force and displacement.
  3. Force applied.
  4. Initial velocity of the object.
→
Which of the following is broad leaf weed?
→
  1. Force can change the direction and magnitude of the velocity.
  2. Acceleration may be acquired due to the reduction in the mass of the body under motion.
  3. Two masses moving with the same velocity can be stopped in distances S1 and S2 (<S1) such that m1 > m2 with the same retarding force.
    →