Question : Which of the following cell structures is present only in plant cells?

Option 1: Mitochondria

Option 2: Cell wall

Option 3: Cell membrane

Option 4: Vacuole

Question : If the perimeter of a square is $80\;\mathrm{cm}$, then what is the diagonal (in $\mathrm{cm}$) of the square?

Option 1: $20\sqrt{2}$

Option 2: $40\sqrt{2}$

Option 3: $80\sqrt{2}$

Option 4: $20$

Question : After giving a 40% discount on an article, there is still a profit of 20%. What will be the profit percentage when no discount is given?

Option 1: 60%

Option 2: 68%

Option 3: 78%

Option 4: 100%

Question : If the diagonals of a Rhombus are 12 cm and 16 cm, then what is the perimeter (in cm) of the Rhombus?

Option 1: 20 cm

Option 2: 40 cm

Option 3: 60 cm

Option 4: 80 cm

Question : Which thin, flexible barrier separates the internal of the cell from the extracellular fluid?

Option 1: Cytoplasmic membrane

Option 2: Restriction barrier

Option 3: Nuclear envelope

Option 4: Plasma membrane