Translocation and Vascular Tissue in Plants

The video explains how plants and trees move food internally through a process called translocation. This process occurs in the phloem, where sugar molecules are actively transported, creating a pressure difference that drives the movement of food. The video also discusses the structure of phloem cells, which are alive and supported by companion cells, allowing them to perform active transport. The importance of vascular tissues, including xylem and phloem, in plant nutrition and survival is highlighted.

What is the primary function of translocation in plants?

• To store excess water

• To absorb nutrients from the soil

• To move food to different parts of the plant

• To produce food from sunlight

Which vascular tissue is responsible for the transport of food in plants?

• Chloroplast

• Stomata

• Phloem

• Xylem

What is required for the loading of sugar into the phloem?

• Sunlight

• Energy

• Minerals

• Water

How does water enter the phloem during translocation?

• By osmosis

• Through active transport

• Via diffusion

• Through capillary action

What drives the bulk flow of sap in the phloem?

• Pressure differences

• Gravity

• Temperature changes

• Wind

Why do phloem cells need to be alive?

• To support the plant structure

• To generate energy for active transport

• To store water

• To absorb sunlight

What role do companion cells play in the phloem?

• They provide structural support

• They store excess food

• They transport water

• They help keep phloem cells alive

What happens to the water after the sugar is unloaded from the phloem?

• It is absorbed by the roots

• It remains in the phloem

• It moves back to the xylem

• It evaporates

Why don't xylem cells need to be alive?

• They do not require energy

• They are not part of the vascular system

• They rely on physical forces for transport

• They do not transport food

What is the main difference between xylem and phloem cells?

• Xylem cells are alive, phloem cells are dead

• Xylem cells are dead, phloem cells are alive

• Xylem cells transport food, phloem cells transport water

• Xylem cells are larger than phloem cells