Roots

The downward growth of roots is due to which tropism?

• Geotropism

• Thigmotropism
• Hydrotropism
• Phototropism

A tap root system is characterized by

• A single, main root with smaller lateral roots branching off

• Many thin roots of similar size arising from the stem base

Tap root systems are typically found in

• Monocotyledonous plants

• Dicotyledonous plants

The slimy substance secreted by the root cap helps in

• Increasing water absorption

• Facilitating root movement through the soil

• Anchoring the root in the soil

• Storing nutrients

What is the function of the root cap?

• To absorb water and minerals

• To conduct photosynthesis

• To protect the root tip during growth

• To store food

In a primary root, where does cell division primarily occur?

• Meristematic zone

• Elongation zone

• Maturation zone

Which zone of the primary root is responsible for increasing its length?

• Meristematic zone

• Elongation zone

• Maturation zone

In which zone do cells differentiate into specialized tissues like dermal, vascular and ground tissues?

• Meristematic zone

• Elongation zone

• Maturation zone

Which of the following statements about the primary root is incorrect?

• The meristematic zone is located at the tip of the root

• Cell division occurs only in the meristematic zone.

• The elongation zone is responsible for cell differentiation

• The maturation zone is where cells develop into specialized tissues.

What is the primary function of lateral roots?

• To protect the root tip

• To store food

• To increase surface area for absorption and support

• To conduct photosynthesis