To match each item correctly from Column I to Column II, we consider the characteristics of the plants and flowers:
A. Unisexual flowers are typically found in unisexual plants which only have either male or female organs, not both. Therefore, A matches with III (Contain only pistil or stamens).
B. Bisexual flowers contain both male (stamens) and female (pistil) reproductive structures and are typically found in bisexual plants. Therefore, B matches with IV (Contain both pistil and stamens).
C. Corn and Papaya are examples of plants with unisexual flowers, meaning they should match with I (Unisexual plants).
D. Mustard and rose are known to have bisexual flowers. Thus, D should match with II (Bisexual plants).
Thus, the correct matching is:
A-III (Unisexual flowers\(\rightarrow\) Contain only pistil or stamens)
B-IV (Bisexual flowers \(\rightarrow\) Contain both pistil and stamens)
C-I (Corn and Papaya \(\rightarrow\) Unisexual plants)
D-II (Mustard and rose \(\rightarrow\) Bisexual plants).
Name the plant hormone which is synthesized at the shoot tip. How does this hormone help the plant to bend towards light?
Leaves of the sensitive plant move very quickly in response to ‘touch’. How is this stimulus of touch communicated and explain how the movement takes place?
Write the name of a hormone that plays a major role in (i) falling of leaves (ii) rapid cell division.
Name the movement which causes ‘X’ and ‘Y’ to grow downwards and upwards respectively. (Refer above figure)
Assertion (A): Xylem tissue moves water and minerals obtained from the soil by the roots.
Reason (R): Xylem tissue is found only in the roots of a plant.
Simplify the following expression: $ \frac{2^{n+5} - 4 \cdot 2^{n}}{2 \cdot (2^{n+4})} $.