Question : Rutherford's  scattering experiment proved the presence of

Option 1: Atoms in all matter

Option 2: electrons in atoms

Option 3: neutrons in atoms

Option 4: nucleus in atoms

Question : Which one of the following is true regarding plant cells and animals cells?

Option 1: plant cells contain chlroplast while animal cells do not.

Option 2: Plants cells are small while animal cells are large in size

Option 3: Plants cells contain nucleus while animals cell do not

Option 4: Plants cells and animal are similar in all respects

Question : Which of the following options is not correct about plant cells?

Option 1: The cell wall of a plant cell is made up of cellulose.

Option 2: The plant cells cannot divide by mitosis.

Option 3: A plant cell usually contains a large vacuole.

Option 4: Generally, all plant cells contain chloroplast.

Question : Select the correct statement.

Option 1: Mitochondria and nucleus are found in bacteria

Option 2: Ribosomes, mitochondria and lysosomes are found in animal cells

Option 3: Chloroplast, ribosomes and nucleus are present in fungal cells

Option 4: Mitochondria and nucleus are absent in plant cell

Question : In the early 1800s, who discovered that each chemical element is made up of a unique type of atom and that atoms differ by their mass?

Option 1: Antoine Lavoisier

Option 2: John Dalton

Option 3: Amedeo Avogadro

Option 4: Robert Boyle