Question : The nutritive tissue in the seeds of higher plants is known as :

Option 1: hypocotyl

Option 2: embryo

Option 3: endosperm

Option 4: nucellus

Question : One type of liquid contains 20% water, and the second type contains 35% water. A glass is filled with 10 parts of the first liquid and 4 parts of the second liquid. What is the percentage of water in the new mixture in the glass?

Option 1: $37$%

Option 2: $46$%

Option 3: $12\tfrac{1}{7}$%

Option 4: $24\tfrac{2}{7}$%

Question : A mixture contains liquid A and B in the ratio 5 : 3, respectively. If 3 litres of liquid B is added to it, the ratio of liquid A to liquid B becomes 7 : 6. What is the quantity of liquid A in the mixture?

Option 1: $7 \frac{2}{3}$ litres

Option 2: $9 \frac{1}{3}$ litres

Option 3: $11 \frac{2}{3}$ litres

Option 4: $13 \frac{1}{3}$ litres

Question : A mixture contains liquid A and B in the ratio 5 : 3, respectively. If 3 litres of liquid B is added to it, the ratio of liquid A to liquid B becomes 7 : 6. What is the quantity of liquid A in the mixture?

Option 1: $7 \frac{2}{3}$ litres

Option 2: $9 \frac{1}{3}$ litres

Option 3: $11 \frac{2}{3}$ litres

Option 4: $13 \frac{1}{3}$ litres

Question : Which part of the cinchona yields a drug?

Option 1: Pericarp

Option 2: Bark

Option 3: Endosperm

Option 4: Leaf