AP BIOLOGY

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ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Describe how the transport system of a plant is critical to its reproductive function.I.The plant’s root system uptakes water and nutrients and delivers them to the flowering parts of the plant to support growth and development.II. The shoot system provides structural support to the plant and upholds the flower.III. Hormones used for seed development are transported through the root system to the shoot system.
A
I and II only
B
II and III only
C
I and IlI only
D
I, II, and III
Explanation: 

Detailed explanation-1: -“Transportation is the process that involves the movement of water and necessary nutrients to all parts of the plant for its survival. “ Transportation is a vital process in plants. Trees transport all the nutrients and water it needs for survival from its roots to the tips of the leaves.

Detailed explanation-2: -Plants have two transport systems-xylem and phloem . Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.

Detailed explanation-3: -Transpiration provides a suction force that is required for the absorption of water, which is required for photosynthesis. As molecules line up for absorption in the xylem tissues, the first molecule is lost by the plant owing to transpiration.

Detailed explanation-4: -Transpiration is the loss of water by the stomatal openings of the aerial parts of the plant. This helps in the upward movement of water and minerals from the roots to the leaves by a cohesion-adhesion mechanism.

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