Description : Growth of plant towards light is called? (A)Phototropism (B) Photorespiration (C) Photocromatism (D) Photoperiodism
Last Answer : (D) Photoperiodism
Description : Photo-respiration rate is highest in which group of plants? (A) C3 plants (B) CAM plants (C)C4 plants (D) None of these
Last Answer : (A) C3 plants
Description : Cholodny-Went theory is connected with: (1) Photo morphogenesis (2) Phototropism (3) Nastic movement (4) Geotropism
Last Answer : Ans. ((c))
Description : The response of different organisms to the environmental rhythms of light and darkness is called (a) vernalization (b) photoperiodism (c) phototaxis (d) phototropism.
Last Answer : b) photoperiodism
Description : What is the process of growth of a plant toward a light stimulus is called? a. Geotropism b. Chemotropism c. Phototropism d. Hydrotropism
Last Answer : c. Phototropism
Description : The tendency of a plant to grow toward light is called: a) photosynthesis b) photoinduction c) phototropism (pron: fo-tot-row-piz-em) d) photolysis (pron: fo-tol-eh-sis)
Last Answer : ANSWER: C -- PHOTOTROPISM
Description : How does phototropism occur in plants? -Biology-10
Last Answer : Phototropism is a growth movement induced by a light stimulus. Growth towards a source of light is called positive phototropism, that away from the source is termed negative phototropism. The tips of shoots ... that the tip was, in some way, communicating with the cells of the region of elongation.
Description : How does phototropism occur in plants ? -Biology-10
Last Answer : The movement in any part of a plant due to light is called phototropism. The shoot of plant shows positive phototropism and roots show negative phototropism. Phototropism in plants occurs due to the hormone ... in length of the cells in shady part. So, the plant appears to bend towards light.
Description : The sites of Vernalisation
Last Answer : Ans. Apical buds/Growing point
Description : Which of the following hormones can replace vernalisation? (a) Auxin (b) Cytokinin (c) Gibberellins (d) Ethylene
Last Answer : (c) Gibberellins
Description : Flowering dependent on cold treatment is (a) cryotherapy (b) cryogenics (c) cryoscopy (d) vernalisation.
Last Answer : (d) vernalisation.
Description : Vernalisation stimulates flowering in (a) zamikand (b) turmeric (c) carrot (d) ginger.
Last Answer : (c) carrot
Description : The bending of stem towards light is due toe
Last Answer : Phototropism
Description : Which of the following movement is not related to auxin level? (a) Bending of shoot towards light (b) Movement of root towards soil (c) Nyctinastic leaf movements (d) Movement of sunflower head tracking the sun
Last Answer : (c) Nyctinastic leaf movements
Description : C6H12O6 + 602 —>6O2 + 6HZO shows- (a) Photosynthesis (b) Respiration (c) Oxidation (d) Translocation of food mate-rials
Last Answer : (b) Respiration
Description : Photo-periodically rice is a (A)Day neutral plant (B) Long day plant (C) Short day plant (D) None of these
Last Answer : (C) Short day plant
Description : PAR (Photo-synthetically active radiation) is measured in (A)Photon (B) Watts (C) Einstein (D) Quantum
Last Answer : (C) Einstein
Description : Name the stimulus involved in each of the following phenomenon: (i) Phototropism (ii) Geotropism. -Science
Last Answer : (i) Light (ii) Gravity.
Description : Which hormones are responsible for phototropism? -Biology
Last Answer : Growth curvature response of plants towards light is known as phototropism which is mediated by auxins in plants.
Description : Which plant hormone is related to phototropism? -Biology
Last Answer : answer:
Description : What is Negative Phototropism ?
Last Answer : : Phototropism is a type of curvature of plants. The stems and branches of the plant always move towards the ala and the roots always move in the opposite direction to the ala. In contrast to Ala, the movement of the root is called negative phototropic pism .
Description : Define the following. a) Phototropism
Last Answer : a) Phototropism - The response of plants towards light b) Geotropism - The response of plants towards gravity c) Hydrotropism - The response of plants towards water d) Thigmotropism - The ... The response of plants towards temperature/heat f) Chemotropism - The response of plants towards chemicals
Description : What are auxins? What is affect of auxins on phototropism and geotropism?
Last Answer : Auxins are plants hormones. Geotropism and phototropism are caused by unequal growth of plant parts and controlled by auxins. Effect on phototropism: - From shoot, auxins pass down to the growing ... of root towards force of gravity. So roots grow in earth and show positive geotropic response.
Description : Phytochrome is involved in (a) phototropism (b) photorespiration (c) photoperiodism (d) geotropism
Last Answer : (c) photoperiodism
Description : In plant cells, peroxisomes are associated with (a) photorespiration (b) phototropism (c) photoperiodism (d) photosynthesis.
Last Answer : (a) photorespiration
Description : What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows? (a) Light stimulates plant cells on the lighted side to grow ... Green plants need light to perform photosynthesis. (d) Green plants seek light because they are phototropic.
Last Answer : (b) Auxin accumulates on the shaded side, stimulating greater cell elongation there
Description : Plants capable of growing in rocks crevices are called (A) Calciphytes (B) Chosmophytes (C) Lithophytes (D) Helophytes
Last Answer : (C) Lithophytes
Description : The plants with male and female flowers on different plants are called (A)Dicot (B) Dichogamy (C) Dicliny (D) Dioecious
Last Answer : (D) Dioecious
Description : What are some fruit or veggie plants I can grow on my window sill?
Last Answer : What were you thinking of? I would say maybe carrots, since they’re a root veggie and would be underground, but generally tomatoes or peas or something like that is going to toke more room than a window sill has to offer. How big is your window?
Description : I have created a flower garden in my backyard. I want to know the names of some beautiful flower plants from everyone! What saplings can I plant in my flower garden ?
Last Answer : Different types of flowers can be easily cultivated in a small space around the house , on the veranda of the flat or on the roof. Gada , dahlia and chrysanthemum are among the winter flowers . Also in ... , Zinnia , Sunflower (small) , Lotus , Maltilata etc. are good for tub as rain flower .
Description : In what process do plants produce food ?
Last Answer : : Plants produce food in the process of photosynthesis.
Description : What is needed to complete the life cycle of plants ?
Last Answer : Plants need nutrients to complete their life cycle.
Description : What are the nutrients of plants ?
Last Answer : 16 plant nutrients.
Description : Mycorrhiza is associated with what part of plants? (A) Roots (B) Leaf (C) Stem (D) Fruits
Last Answer : (A) Roots
Description : Which of the following element immobile in soil but mobile in plants? (A)S (B) B (C) Zn (D) P
Last Answer : (D) P
Description : In plants, enzyme responsible for the synthesis of the malic acid is : (A) Rubisco (B) PEP carboxylase (C)Kinase (D) Urease
Last Answer : (A) Rubisco
Description : CO2 accepter in C4 plants is (A) PGA (B) RuBP (C)OAA (D) All
Last Answer : (C)OAA
Description : Most of the wheat varieties are (A) Quantitative long day plants (B) Short day plants (C) Day neutral (D) None of these
Last Answer : (B) Short day plants
Description : Criteria for the essentiality of nutrients for plants was given by (A) Arnon (B) Wilcox (C) Liebig (D) None
Last Answer : (A) Arnon
Description : Which of the following process is not takes place in evolution of plants? (A)Crossing over (B) Mutation (C) Linkage (D) Coupling
Last Answer : (C) Linkage
Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus
Last Answer : (D) Phosphorus
Description : Plants absorb phosphorus in the form of (A) H2PO4 (B) PO4 (C) SSP (D) P
Last Answer : (A) H2PO4
Description : The plants which open their stomata during night for taking CO4 are known as (A) C3 (B) CAM (C)C4 (D) All of above
Last Answer : (B) CAM
Description : While starting cultivation of medicinal and aromatic plants, first it should be ensured...... (A) cultivation expenses (B) medicinal value of plants (C) availability of processing unit (D) location of the farm (E) availability of assured profitable market
Last Answer : (C) availability of processing unit
Description : Which one of the following ornamental plants is a native of India and has been introduced into several countries from India ? (A) Gladiolus (B) Orchids (C) Bougainvillea (D) Marigold (E) None of these
Last Answer : (C) Bougainvillea