Question Discussion & Solution

Given : Cobbler : Shoes – Cobbler mends our shoes.

Electrician : Screw – Screw is a tool used by electricians.

Carpenter : Jig – Jig is a tool used by carpenters.

Mechanic : Car – Mechanic mends our cars.

Manager : Office – Manager is a superior person who handles the administrative work of an office.

The source of rain is clouds.

Similarly, the source of heat is fire.

After reading statements and conclusion we decide that -

i) Some basketball players are not women. → False (We do not have any information about the other basketball player they can be women or men)

ii) Not all basketball players are women.→ False (This is a possibility but we cannot say definitely)

Hence, option 4 is the correct answer.

The correct answer is Both 2 and 3.

Key Points

• Both mitochondria and chloroplasts  possess their own genetic material thus, they are called as semi-autonomous organelles.
• The mitochondrial DNA and plastid DNA possess genes which produce the proteins necessary for the functioning of mitochondria and chloroplasts  respectively.

• Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope.
• The number of mitochondria per cell is variable depending on the physiological activity of the cells.
• In terms of shape and size also, a considerable degree of variability is observed.
• Typically it is sausage-shaped or cylindrical having a diameter of 0.2-1.0µm (average 0.5µm) and length 1.0-4.1µm.
• Each mitochondrion is a double membrane-bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, i.e. the outer compartment and the inner compartment.

Feminine means qualities or appearance of aFemale.

Similarly,

Masculine means qualities or appearance of a Male.