Question
What is protoplasm?
✓
Answer
It is the living matter of the cell. It is made up of cytoplasm and nucleus.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Classify the following as physical or chemical properties:
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
Two persons manage to push a motorcar of mass 1200kg at a uniform velocity along a level road. The same motorcar can be pushed by three persons to produce an acceleration of 0.2m s-2. With what force does each person push the motorcar? (Assume that all persons push the motorcar with the same muscular effort.)
What is serum?
A body of mass 20kg moves with an acceleration of 2cm/s2. Calculate change in momentum.
Find the energy in joules consumed in 10 hours by four devices of power 500W each.
Wave of free of frequency 200Hz is produced in a string as shown in the figure. Find amplitude, wavelength and velocity of the wave.
When water is heated to a temperature x, it gets converted into steam at temperature x by a process called R. And when steam at temperature x is cooled, it gets reconverted in to water at the same temperature x by a process called S.
- How much is the value of x in Kelvin?
- What is the process R called?
- What is the name of the energy absorbed during the process R?
- What is process S known as?
- What is the name of energy released during the process S known as?
21.5g of sodium chloride dissolves in 60g of water at 25°C. Calculate the solubility of sodium chloride at that temperature.
The velocity-time graph for part of a train journey is a horizontal straight line. What does this tell you about (a) the train’s velocity, and (b) about its acceleration?
Which of the following are physical changes and which are chemical changes?
- Burning of a magnesium wire.
- Freezing of water.
- Rusting of iron.
- Glowing of an electric bulb.