Class 9_Plant Tissues

The cells of cork are dead and have a chemical in their walls that makes them impervious to gases and water. The chemical is

• Lignin

• Suberin

• Cutin

• Wax

Sieve tubes and companion cells are present in

• Xylem

• Phloem

• Cork

• Cambium

Xylem and phloem are examples of

• Epidermal tissue

• Simple tissue

• Protective tissue

• Complex tissue

Which of the following tissues whose role is to protect and cover the plant?

• Dermal tissue

• Epidurial tissue

• Ground tissue

• Vascular tissue

Which of the following is a waxy substance that covers epidermal surfaces of plants?

• Thorn

• Lignin

• Cutin

• Sclereids

Which of the following is a complex tissue that transports water, minerals, and sugars to different parts of the plant?

• Dermal tissue

• Ground tissue

• Permanent tissue

• Vascular tissue

Which of the following is a hair-like appendage for protection, secretion, and others?

• Thorns

• Trichomes

• Sclereids

• Fibers

what is the function of cuticle?

• protects the underlying tissues

• transport water

• transport mineral and nutrients

• reduce loss of water through transpiration

what is the function of xylem tissue?

• transports water and minerals salt

• control the opening and closing of stoma

• carry out photosynthesis

• provide support for young plant

what is the function of phloem tissue?

• transport water and minerals

• support plants

• photosynthesis process occur

• transport organic nutrients