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ICSE (Class- IX)

Physics-All about measurement.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

In addition to plasma membrane, nucleus and cytoplasm; some cells have an outer covering called the cell wall. Which of the following does not have it?

  1. Bacteria
  2. Fungi
  3. Protozoa
  4. Plant cell
Question 2 Multiple Choice (Single Answer)

A membrane is said to be semipermeable, if_________________.

  1. a substance does not pass through it
  2. it is permeable to solvents but not to solutes
  3. it is permeable to solvents and some selected solutes
  4. it is permeable to solvents and solutes
Question 3 Multiple Choice (Single Answer)

Which of the following processes does not take place through osmosis?

  1. Preparation of food in plants
  2. The opening and closing of stomata
  3. Turgidity in plants
  4. Absorbtion of water by roots
Question 4 Multiple Choice (Single Answer)

Which process is involved in all the examples given below?
a) Tea leaves give flavour to the water in which it is boiled.
b) Spreading of garbage stink from the dustbin.
c) Spreading of aroma of flowers.
d) Spreading of blue colour of ink in a glass full of water.

  1. Mixing
  2. Sedimentation
  3. Diffusion
  4. Evaporation
Question 5 Multiple Choice (Single Answer)

Which of the following is a coloured plastid?

  1. Chromoplast
  2. Elaioplast
  3. Amyloplast
  4. Aleuroplast
Question 6 Multiple Choice (Single Answer)

Which of the following is not an osmotic solution?

  1. Water
  2. Hypotonic solution
  3. Isotonic solution
  4. Hypertonic solution
Question 7 Multiple Choice (Single Answer)

What gives attractive colours to fruits and flowers?

  1. Chloroplasts
  2. Chromoplasts
  3. Aleuroplasts
  4. Amyloplasts
Question 8 Multiple Choice (Single Answer)

Which of the following is not a name given to lysosomes?

  1. Suicide bags
  2. Demolition squads
  3. Power house of a cell
  4. Digestive bags
Question 9 Multiple Choice (Single Answer)

Which of the following is/are not passed through plasma membrane by active transport?

  1. Glucose
  2. Ions
  3. Food particles
  4. Amino acids
Question 10 Multiple Choice (Single Answer)

What happens when a plant cell is put into a concentrated solution?

  1. It bursts
  2. It swells
  3. It shrinks
  4. No change
Question 11 Multiple Choice (Single Answer)

Which of the following is not a function of vacuoles?

  1. They function as a dump house of waste products in plant cells.
  2. They take part in osmoregulation and excretion.
  3. They help in liberating energy.
  4. They store salt, sugar, amino acids, etc.
Question 12 Multiple Choice (Single Answer)

Cell's genetic information is kept in distinct structures called ___________, which are housed in the nucleus.

  1. mitochondria
  2. ribosome
  3. golgi apparatus
  4. chromosomes
Question 13 Multiple Choice (Single Answer)

Which of the following characterstics indicates that a cell is prokaryotic?

  1. The cell has vacuoles.
  2. An organised nucleus is absent.
  3. Membrane bound cell organelles are present.
  4. Two to several DNA molecules are present.
Question 14 Multiple Choice (Single Answer)

Which of the following is the incorrect statement?

  1. Ribosomes are known as protein factories.
  2. Ribosomes are not present in human RBCs.
  3. Ribosomes are composed of ribonucleic acid and proteins.
  4. Ribosomes are the largest organelles in animals.
Question 15 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. When a substance is passed through a membrane, expenditure of energy takes place.
  2. Osmosis is a type of passive transport.
  3. The movement of a sustance takes place from region of higher concentration to lower concentration.
  4. Diffusion takes place in solids, liquids or gases.
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