Atoms and Molecules — Science STD 9 — Question

Food is converted to energy in:

Lysosomes are made up of:

Permanent tissues differ from meristematic tissue in:

1. Inability to divide.
2. Attainment of definite shape and size.
3. Performing a distinct function.
4. All the above.

What is true in a scientific name?

1. Specific name is written first.
2. Generic name starts with small letter.
3. Generic name starts with capital letter while specific name starts with small letter.
4. It is written in English.

The history of the cell began in 1665 with the publication of Micrographia in London by:

1. Robert Hooke
2. Robert Brown
3. Straburger
4. Dujardin

What is the mass number of ₁₇​C1³⁵ ?

The property to flow is unique to fluids. Which one of the following statements is correct?

Fertilizers cause:

1. Eutrophication of water bodies.
2. Killing of most microorganisms.
3. Destruction of crumb structure of soil.
4. All the above.

The property/ properties which enable copper metal to be used for making electric wires is/ are:

If the temperature of an object is 268K, it will be equivalent to:

1. -5°C
2. +5°C
3. 368°C
4. -25°C