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 : What is the length of a bacterial cell?

Option 1: 3 to 5 µm

Option 2: 1 to 40 µm

Option 3: 30 to 50 µm

Option 4: 0 to 3 µm

Question : Which compound structure includes a saturated short-chain fatty acid with 4-carbon molecules, commonly found in esterified form in animal fats and plant oils?

Option 1: Butyric acid

Option 2: Propionic acid

Option 3: Succinic acid

Option 4: Lactic acid

Question : Grey hair is caused due to

Option 1: ageing of epidermal cells

Option 2: death of dermal cells

Option 3: loss of sebum in epidermal cells

Option 4: loss of melanin in epidermal cells

Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following symbols:
If + stands for division; × stands for addition; – stands for multiplication and ÷ stands for subtraction.

Option 1: 5 – 3 + 2 × 4 ÷ 8 = 2

Option 2: 5 × 3 + 2 – 4 × 8 = 19

Option 3: 5 ÷ 3 × 2 – 4 + 8 = 8

Option 4: 5 + 3 × 2 ÷ 4 – 8 = 4