Transport in Plants

Which of the following is responsible for the transport of sugars ONLY.

• Spongy mesophyll

• Epidermis

• Xylem

• Phloem

Which of the following is used to transport water & mineral ions, while also providing structural support to the plant?

• Phloem

• Mesophyll

• Stem

• Xylem

In which of the following can lignin be found?

• Stalk

• Xylem

• Phloem

• Leaves

Which of the following statements is false about xylem vessels?

• They are made up of dead cells.

• They contain chloroplasts and nuclei.

• They are hydrophobic.

• Their walls are made of cellulose and lignin.

Which of the following is false about the phloem tubes?

• They do not contain cytoplasm

• They contain companion cells

• Their end walls have not been completely broken down.

• They transport sugars only.

What does the above image show?

• Xylem only

• Phloem only

• Vascular bundle in a root

• Vascular bundle in a stem

What is shown in the above image?

• Xylem only

• Phloem only

• Vascular bundle in a root

• Vascular bundle in a stem

By which of the following processes do water molecules enter into the plant?

• Osmosis

• Active transport

• Diffusion

• Transpiration

Define the term "Transpiration".

• Exchange of gases between the leaf and atmosphere.

• Loss of water vapour from the leaves and stems of the plant.

• Movement of water from the roots to the leaves.

• Movement of water through the cells of the leaf.

Which apparatus is needed to measure the rates of transpiration?

• Pipette

• Potometer

• Bunsen burner

• Plants