Questions
Which of the following elements of phloem consist(s) of dead cells?
- Sieve tubes
- Companion cells
- Phloem parenchyma
- Phloem fibres
- None of these
Dermal tissues, ground tissues and vascular tissues are produced by
- intercalary meristem tissues
- apical meristem tissues
- parenchyma tissues
- collenchyma tissues
- sclerenchyma tissues
Which of the following types of lateral meristems are involved in secondary growth?
- Epidermis and endodermis
- Peripheral and central
- Xylem and phloem
- Vascular cambium and cork cambium
- None of these
Which of the following statements is false regarding epidermal tissue of plants?
- It is made of elongated compact cells.
- Cuticle is present in stem and root.
- Stoma is found in this layer.
- Its cells bear hair.
- It is the outermost layer.
Which of the following tissues acquires a specific role and loses the ability of cell division?
- Meristematic tissue
- Permanent tissue
- Cambium
- Vascular cambium
Which of the following meristems helps in increasing the girth of a plant?
- Lateral meristem
- Intercalary meristem
- Primary meristem
- Apical meristem
Which of the following tissues forms long, flexible, but strong strands in leaf stalks?
- Sclerenchyma
- Collenchyma
- Xylem
- Prosenchyma
Which of the following tissues has dead cells?
- Collenchyma
- Sclerenchyma
- Parenchyma
- Phloem
Name the chemical secreted by cork cells that makes them impervious to gases and water.
- Suberin
- Lignin
- Cutin
- Melanin
The plant tissue found predominately in the flesh of apples and pineapples is
- trachea
- xylem fibre
- sclereid
- parenchyma
- tracheid
Why are sieve tubes suited for translocation of food?
- Because of bordered pits
- Because of no end walls
- Because of broader lumen and perforated cross walls
- Because of bordered pits and absence of protoplasm
Which of the following is the correct set of components of xylem tissue?
- Xylem fibres, sieve cells, sclerenchyma cells and tracheids
- Vessels, tracheids, xylem parenchyma and fibres
- Collenchyma cells, fibres, companion cells and vessels
- Tracheids, xylem collenchyma, xylem parenchyma and meristem
Which of the following tissues translocates food in plants?
- Xylem
- Phloem
- Collenchyma
- Sclerenchyma
Which of the following help(s) in the conduction of water in plants?
- Root hairs
- Phloem fibres
- Xylem vessels
- Phloem parenchyma
Which of the following is a function of meristem?
- Absorption of water
- Absorption of minerals
- Translocation of food
- Growth of plants