Description : Which of the following is not a simple tissue? (a) xylem (b) parenchyma (c) collenchyma (d) sclerenchyma
Last Answer : (a) xylem
Description : (CBSE 2011): A permanent slide shows thin walled isodiametric cells with a large vacuole. The slide contains: (a) Parenchyma cells (b) Nerve cells (c) Sclerenchyma cells (d) Collenchyma cells
Last Answer : (a) Parenchyma cells
Description : (CBSE2011): Deepa was shown two slides of plant tissues: parenchyma and sclerenchyma. She can identify sclerenchyma by the (a) location of nucleus (b) size of cells (c) thickness of cell walls (d) position of vacuoles
Last Answer : (c) thickness of cell walls
Description : The husk of the coconut is made up of? (a) collenchyma (b) sclerenchyma (c) apical meristem (d) intercalary meristem
Last Answer : (b) sclerenchyma
Description : Why the cell walls of collenchyma tissues are unevenly thickened?
Last Answer : : The cell walls are unevenly thickened due to deposition of excessive cellulose, and pectin.
Description : What are the identifying features of collenchyma tissue?
Last Answer : 1. Long and narrow cells 2. cell walls are irregularly thickened at corners due to deposition of cellulose or pectin. 3. oval, circular or polygonal in shape 4. Very little intercellular spaces are present
Description : Parenchyma is a type of ____ (a) simple tissue (b) complex tissue (c) xylem d) phloem
Last Answer : (a) simple tissue
Description : What is the structure and nature of Parenchyma tissue?
Last Answer : Living cells, thin walled,cell wall composed of cellulose and Pectin, large intercellular spaces
Description : Are Collenchyma tissues present in roots of the plants?
Last Answer : No, Collenchyma is absent in root system. It is present in stem, petioles, veins of leaf.
Description : Where do you find collenchyma tissues in plants?
Last Answer : Below the epidermis of stem and around veins of leaves.
Description : Where do you find Parenchyma cells in Plants?
Last Answer : Widely distributed in stem, root, leaves, flower.
Description : What is the shape of Parenchyma cells?
Last Answer : Isodiameteric (same size)
Description : (CBSE 2011): Aditi observed following observations while looking into a permanent slide. (i) Cells are long and cylindrical (ii) Light and dark bands are present. It could be a slide of : (a) striated muscle fibre (b) smooth muscle fibre (c) neuron (d) parenchyma cells
Last Answer : (a) striated muscle fibre
Description : Which meristem is present at the base of the leaves or internodes on twigs? (a) Apical meristem (b) Cambium (c) Intercalary meristem (d) Epidermis
Last Answer : (c) Intercalary meristem
Description : The girth of the stem or root increases due to ___ (a) Apical meristem (b) Cambium (c) Intercalary meristem (d) Epidermis
Last Answer : (b) Cambium
Description : The tissue that is involved in the transport of food material in plants is called: (a) parenchyma (b) phloem (c) sclerenchyma (d) xylem
Last Answer : Ans:(b)
Description : The food conducting tissue of a plant is (1) Phloem (2) Xylem (3) Parenchyma (4) Collenchyma
Last Answer : (1) Phloem Explanation: In vascular plants, phloem is the living tissue that carries organic nutrients, in particular, sucrose, a sugar, to all parts of the plant where needed. ... mainly with the transport of soluble organic material made during photosynthesis. This is called translocation.
Last Answer : Phloem
Description : Which Phloem cellular element has tubular structure with perforated walls?
Last Answer : Sieve tubes
Description : In the dicot root the vascular cambium originates from (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem (b) cortical region (c) parenchyma between endodermis and pericycle (d) intrafascicular and interfascicular tissue in a ring.
Last Answer : (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem
Description : List functions of phloem tissue?
Last Answer : 1. Phloem transport food in both directions. 2. Sieve tubes and companion cells are involved in translocation of organic substances. 3. Phloem parenchyma and phloem fibres play supporting role in the transportation process.
Description : Name the cellular elements of Phloem tissue.
Last Answer : Four types: 1. Sieve tubes 2. Companion cells 3. Phloem parenchyma and 4. Phloem fibres
Description : What is the role of xylem tissue?
Last Answer : Xylem tissues are specialized for the conduction of water and mineral substances in the plant body. 1. Tracheids and vessels forms tubular structures to transport water and minerals vertically ( ... and helps in the sideways conduction of water. 3. Fibres are mainly supportive in function.
Description : List the cellular elements of xylem tissue?
Last Answer : Xylem tracheids 2. Xylem tracheae or vessels 3. Xylem fibers and 4. Xylem parenchyma
Description : Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Last Answer : Xylem and phloem both are heterogeneous tissue and are made up of different type of cellular elements.
Description : Why vascular tissue is considered a distinctive feature responsible for survival of plants in terrestrial plants?
Last Answer : Fossils of plants show that vascular tissue appear 400 million years ago. It is believed that aquatic plants moved to terrestrial environment and adaptations like vascular tissue, protected seeds, true roots ... root, stem and leaves. It also enable plant to grow upright i.e. become taller.
Description : Which plant tissue is considered to have played an important role in survival of terrestrial plants?
Last Answer : Vascular tissue i.e. xylem and phloem.
Description : Which tissue is known as living mechanical tissue?
Last Answer : Collenchyma.
Description : Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Last Answer : Collenchyma
Description : What are the functions of areolar tissue?
Last Answer : 1. It is found between skin and muscles and around blood vessels. It binds skin with underlying parts. 2. It acts as a filling medium and fills the gap between the organs and hence protects internal organs. 3. It also helps in repairing damaged tissues.
Description : Name the tissue responsible for the movement in our body.
Last Answer : Muscular tissue.
Description : Which tissue makes up the husk of coconut?
Last Answer : Sclerenchymatous tissue
Description : Which tissue helps in increasing the length of stem and root? OR Q: Which tissues are responsible for the axial growth of plants?
Last Answer : Apical Meristem.
Description : Why do plants have more dead tissues as compared to animals?OR Q: Why do plant tissue require less amount of energy in comparison to animal tissues?
Last Answer : Most of the plant tissues are dead, since dead cells can provide mechanical strength as easily as live ones, and need less maintenance. Also plants have sedentary life i.e. they are stationary. Therefore plant tissues require less amount of energy.
Description : What is a tissue?
Last Answer : Groups of cells which have a common origin, with similar structure and work together to give the highest possible efficiency of function is called tissue. Blood, phloem and muscle are all examples of tissues
Description : The inner lining of blood vessels is made up of which tissues? (a) Nervous tissue (b) Epithelial tissue (c) Connective tissue (d) Muscle tissue
Last Answer : (b) Epithelial tissue
Description : Which tissue is responsible for the length of the plant? (a) Apical meristem (b) lateral meristem (c) Intercalary meristem (d) Epidermis
Last Answer : (a) Apical meristem
Description : Common between sclerenchyma and collenchyma is
Last Answer : Common between sclerenchyma and collenchyma is A. Material transport B. Conduction of water and minerals C. Providing buoyancy D. Providing support
Description : Mention the differences between collenchyma and Sclerenchyma
Last Answer : Collenchyma It contains living cells It are capable of cell division Sclerenchyma It contains dead cells They are not capable of cell division
Description : Which of the following statements is incorrect? (a) Some tissues in plants divide throughout the life (b) Cell growth in animals is more uniform as compared to plants (c) Animals have more ... as compared to plants (d) There is no demarcation of dividing and nondividing regions in animals
Last Answer : (c) Animals have more dead tissues as compared to plants
Description : Water conduction takes place in mosses through – (1) Xylem and Phloem (2) Xylem (3) Collenchyma (4) Parenchyma
Last Answer : (4) Parenchyma Explanation: Botanically, mosses are nonvascular plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis. ... They do not have a welldeveloped xylem. Their conducting tissue is made up of parenchyma.
Description : Mention the differences between parenchyma and collenchyma
Last Answer : Parenchyma Collenchyma Parenchyma cells are loosely arranged Collenchyma cells are closely packed They have thin cell wall. They are thick walled at the corners
Description : Which of the following is made up of dead cells? (a) Collenchyma (b) Phellem (c) Phloem (d) Xylem parenchyma
Last Answer : (b) Phellem
Description : Which of the following is made up of dead cells? (1) Collenchyma (2) Phellem (3) Phloem (4) Xylem parenchyma
Last Answer : (2) Phellem
Description : Water conduction takes place in mosses through (1) Xylem and Phloem (2) Xylem (3) Collenchyma (4) Parenchyma
Last Answer : Parenchyma
Description : Which of the following statement is NOT true? (a) Most of the plant tissues are supportive type. (b) Tissues ensure division of labour. (c) Sedantry existence contribute to the organ system design in animals. (d) Organ systems are far more complex in animals than in plants.
Last Answer : (c) Sedantry existence contribute to the organ system design in animals.
Description : The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion
Last Answer : (d) cohesion and adhesion.
Description : Identify the wrong statement in context of heartwood. (a) It is highly durable. (b) It conducts water and minerals efficiently. (c) It comprises dead elements with highly lignified walls. (d) Organic compounds are deposited in it.
Last Answer : (b) It conducts water and minerals efficiently
Description : Identify the wrong statement in context of heartwood: (1) It is highly durable (2) It conducts water and minerals efficiently (3) It comprises dead elements with highly lignified walls (4) Organic compounds are deposited in it
Last Answer : 2) It conducts water and minerals efficiently
Description : Bidirectional translocation of solutes takes place in (a) parenchyma (b) cambium (c) xylem (d) phloem.
Last Answer : (d) phloem.