Description : Calvin cycle is: (1) C3 cycle (2) Reductive pentose-phosphate cycle (3) Common in cereals uncommon in cereals (4) Uncommon in cereals
Last Answer : Ans. ((c))
Description : Consider the following statements: (1) Cutin is a fatty acid polymer (2) Starch is a fatty acid polymer (3) Sucrose is monosaccharide (4) Maltose is polymer of fructose
Last Answer : Ans. ((b))
Description : Pyrenoids are the centers for formation of: (a) Proteins (b) enzymes (c) Fat (d) Starch
Last Answer : Ans. ((d))
Description : Floridean starch is found in: (a) Chlorophyceae (b) Myxophyceae (c) Phaeophyceae (d) Rhodophyceae
Description : Describe the cell organelle which is responsible for the synthesis of starch.
Last Answer : The cell organelle responsible for the formation of starch is Chloroplast. It was discovered by Sachs and named by Schimper. It is usually disc shaped or Biconvex or Oval or spherical. ... granum and the unstacked thylakoids that connect the adjacent grana are called as Stroma thylakoids.
Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells
Description : Cells of aleurone layer function for
Last Answer : Cells of aleurone layer function for – hydrolyzing the food material of seeds
Description : Cereals are a rich source of - (1) Starch (2) Glucose (3) Fructose (4) Maltose
Last Answer : (1) Starch Explanation: Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. This polysaccharide is produced by all green plants as an ... It consists of two types of molecules: the linear and helical amylose and the branched amylopectin.
Description : Cereals are a rich source of (1) Starch (2) Glucose (3) Fructose (4) Maltose
Last Answer : Starch
Description : Stripping a thin layer of bark completely around a tree trunk will kill the tree, but a deep gouge along one side will not. Why?
Last Answer : It must be remembered that the bark contains the phloem in its innermost region. The circumcision of even a thin layer of bark completely disrupts the movement of organic nutrients from the leaves and ... their strength, it does not reduce their ability to transport nutrients, and so they survive.
Description : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as
Last Answer : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as – Included phloem
Description : The Tunica layer gives rise to –
Last Answer : The Tunica layer gives rise to – Epidermis only
Description : The main atmospheric layer near the surface of earth is a) Troposphere b) Mesosphere c) Ionosphere d) Stratosphere
Last Answer : a) Troposphere
Description : Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.
Last Answer : d) Nitrogen oxides and Fluorocarbons
Description : Ozone layer is found in a) Thermosphere b) Stratosphere c) Mesosphere d) Lithosphere.
Last Answer : b) Stratosphere
Description : The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil a) Mulching b) Desertification c) Incineration d) Leaching
Last Answer : d) Leaching
Description : When embryo arises directly from the (2n) sporophytic cells like nucellus or integuments it is called as
Last Answer : When embryo arises directly from the (2n) sporophytic cells like nucellus or integuments it is called as – Adventive embryony
Description : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as
Last Answer : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as – Adventive polyembryony
Description : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –
Last Answer : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as – Mesogenous development
Description : In roots, mitotically and metabolically inactive cells that are positioned just behind the root cap are called as
Last Answer : In roots, mitotically and metabolically inactive cells that are positioned just behind the root cap are called as – Quiescent center
Description : What is the law of evaporation of water from plant cells ?
Last Answer : Perspiration is the process by which water evaporates from a plant cell.
Description : What are the totiptent stem cells of plants ?
Last Answer : : Totiptent stem is the type of cell from which it is possible to produce plant seedlings directly.
Description : How many types of cells ?
Last Answer : There are two main types of cells based on the type of nucleus. Namely: (1) stem cell. (2) The actual cell.
Description : Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus
Last Answer : Ans. ((a))
Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae
Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP
Description : Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella
Description : The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf
Description : Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal
Description : Golgi apparatus is absent in (a) Higher plants (b) Yeast (c) Bacteria and blue-green algae (d) Liver cells
Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids
Description : Tyloses are: (a) Lactiferous channels (b) Secretory cells (c) Sieve plates (d) Tracheal plugs plugging the lumen of vessels and tracheids
Description : In the secondary culture, cells are obtained from a. primary culture b. the organism c. organ culture d. phenotypic culture
Last Answer : a. primary culture
Description : Callus is a. Tissue that forms embryo b. An insoluble carbohydrate c. Tissue that grows to form embryoid d. Unorganized actively dividing mass of cells maintained in cultured
Last Answer : d. Unorganized actively dividing mass of cells maintained in cultured
Description : In Dracaena, the cambium arises from the cells of
Last Answer : In Dracaena, the cambium arises from the cells of - parenchyma outside the outermost vascular bundles
Description : The living cells having thickening at the corners due to deposition of pectin are known as
Last Answer : The living cells having thickening at the corners due to deposition of pectin are known as – Collenchyma cells.
Description : When the diploid embryosac is formed from the cells of nucellus, it is known as
Last Answer : When the diploid embryosac is formed from the cells of nucellus, it is known as – Apospory
Description : Differentiate laticiferous vessels and cells.
Last Answer : Ans: laticiferous cell is smaller, less efficient and coenocyte. Laticiferous vessel is formed by the union of latex cells. It is more efficient and called as syncytium.
Description : What are bulliform cells? What is their role?
Last Answer : Ans: Specialised larger epidermal cells seen in the upper epidermis of grass leaves which store water are called as bulliform cells or motor cells. They help in rolling and unrolling of lamina.
Description : What are the cells found in the egg apparatus of matured embryosac?
Last Answer : Ans: Two synergids and one egg cell
Description : Who discovered living cells? Name the first discovered living organism
Last Answer : Ans: Leeuwenhoek, Bacteria
Description : Substances containing all the four elements: carbon, hydrogen nitrogen and oxygen are 1. Morphine 2. Nucleic acids 3. Starch 4. Quinine Select the correct answer by using the code below, (a) 2, 3 and 4 only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only
Last Answer : Ans:(b)
Description : Which filler can NOT be used for the preparation of tablets for amine containing basic drugs to avoid discoloration of the tablets? (A) Dicalcium phosphate (B) Microcrystalline cellulose (C) Starch (D) Lactose
Last Answer : (D) Lactose
Description : What is specialized nerve cells in the brain are called?
Last Answer : Feel Free to Answer
Description : When all cells in the embryo of a multicellular organism are identical. later in development the cells become specialized through a process called?
Last Answer : What is the answer ?
Description : What are the specialized cells of the nervous system called?
Last Answer : neurons
Description : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to perform, respectively,
Last Answer : In `C_(4)` plants , mesophyll cells and bundle sheath cells are specialized to ... and photorespiration D. Photorespiration and dark reaction
Description : WHAT ARE A group of cells performing a specialized function is a?
Description : What is the purpose of specialized cells that produce strong odors from the corpse flowers?
Last Answer : Corpse flowers are pollinated by flies. The smell that isgenerated is used to attract the flies for pollination; much asnectar in other plants is used to attract bees and butterflies
Description : What is the purpose of the specialized cells that produce strong odors from the flow what is the purpose of the specialized cells that produce strong odors from the corpse flower?
Last Answer : Need answer