Practice Test

Q1) A natural growth regulator is Show Answer

Q2) The maximum growth phase is Show Answer

Q3) The rate of growth is measured by Show Answer

Q4) Bakanae disease is caused by Show Answer

Q5) Ethylene is mainly responsible for Show Answer

Q6) The rosette habit of cabbage can be changed drastically by the application of Show Answer

Q7) Gibberellians were first extracted from Show Answer

Q8) The synthesis of amlyase in certain cereals is stimulated by Show Answer

Q9) It will not be any advantage to produce seedless fruits in Show Answer

Q10) Hormone involved in inhibition of growth is Show Answer

Q11) Bioassay for auxin is Show Answer

Q12) Scientist who first isolated cytokinin was Show Answer

Q13) Biossay for gibberellin is Show Answer

Q14) The growth hormone, Gibberellin, was discovered by Show Answer

Q15) Delay in senescence is caused by the spray of Show Answer

Q16) The response of plants to light was first of all discovered by Show Answer

Q17) Gibberellins take part in Show Answer

Q18) Apical dominance is due to Show Answer

Q19) Leaf abscission is promoted by Show Answer

Q20) Most plants are seasonal due to Show Answer

Q21) Which element is the constituent of chlorophyll molecule ? Show Answer

Q22) Which of the following is not a purpose of transpiration ? Show Answer

Q23) The rate of transpiration accelerate due to Show Answer

Q24) Which element is caused by whiptail disease in plants ? Show Answer

Q25) Which equation is represented by respiration ? Show Answer

Q26) Sulphur is an important nutrient for optimum growth and productivity in Show Answer

Q27) Premature leaf fall and weakness n plants is due to deficiency of Show Answer

Q28) name the elements, which occur in nucleic acids ? Show Answer

Q29) Which element is required for the germination of pollen grains ? Show Answer

Q30) In which part of plants transpiration takes place ? Show Answer

Q31) Which type of movement is shown by the leaves of oxalis ? Show Answer

Q32) Which one of the following is a micronutrient ? Show Answer

Q33) First visible product of photosynthesis is Show Answer

Q34) Which type of movement is shown by Mimosa pudica ? Show Answer

Q35) Which of the following equation represents photosynthesis ? Show Answer

Q36) Which of the following organelles of a cell is/are involved in photosynthesis ? Show Answer

Q37) Which of the following is a growth inhibitor ? Show Answer

Q38) Auxins were first isolated from Show Answer

Q39) Which is the precursor of IAA ? Show Answer

Q40) The chemical which perceives the photoperiodic stimulus in leaves is Show Answer

Q41) Which one is antigibberellin ? Show Answer

Q42) Phenomenon of bolting is caused by which plant hormone ? Show Answer

Q43) Femaleness in plants is caused by Show Answer

Q44) Fluorene ring is feature of Show Answer

Q45) A natural growth inhibitor is Show Answer

Q46) Hormone involved in phototropism is Show Answer

Q47) Low temperature required for vernalisation is Show Answer

Q48) Flowering in a short day plant is promoted by Show Answer

Q49) Optimum temperature for growth generally is Show Answer

Q50) The development of fruit without fertilisation is Show Answer

Q51) Mango and Guava plants are propagated through Show Answer

Q52) Presence of many embyo is a characteristics feature of Show Answer

Q53) Stem cutting are commonly used for the propagation of Show Answer

Q54) The development of embryo/seed from an egg without fertilisation Show Answer

Q55) Vegetative reproduction by layering is found in Show Answer

Q56) Haploid plants can be obtained by culturing Show Answer

Q57) The stem cutting are commonly used for the propagation of Show Answer

Q58) Vegetative propagation in Agave is by Show Answer

Q59) Tubers are used for vegetative reproduction in Show Answer

Q60) Which type of asexual reproduction present in Hydra ? Show Answer

Q61) Which of the following develops into seed after fertilisation ? Show Answer

Q62) The apical bud inhibits the growth of lateral buds, this process is called as Show Answer

Q63) The horse-shoe shaped ovule is Show Answer

Q64) The sexual reproduction in plants was first reported by Show Answer

Q65) Double fertilisation is characteristic of Show Answer

Q66) The endosperm is gymnoperms is Show Answer

Q67) The transfer of pollen grains from anther to stigma of the same flower is called Show Answer

Q68) Growth can be measured by Show Answer

Q69) Endospermic nucleus is usually Show Answer

Q70) A fragment of the body forms the complete organism in Show Answer

Q71) Double fertilisation was discovered by Show Answer

Q72) Embryo sac represents Show Answer

Q73) The pigment responsible for flower induction is Show Answer

Q74) Consider the following statements. Apical dominance in plants
(I) Allow plant growth
(II) Retards the growth of lateral buds
(III) enhance the growth of lateral buds
Which of these statement is/are correct ? Show Answer

Q75) The body of ovule at right angle to the funicle in Show Answer

Q76) Which hormone was isolated from maize endosperm ? Show Answer

Q77) A clone is produced Show Answer

Q78) Layering method of vegetative reproduction is found in Show Answer

Q79) ASSERTION :
Ethylene is a gaseous hormone.
REASON :
Ethylene hastens ripening of fruits. Show Answer

Q80) ASSERTION :
Double fertilisation is unique to angiosperms.
REASON :
Triple fusion occurs in both fertilisation, i.e., first and second. Show Answer

Q81) ASSERTION :
Most common type of ovule is anatropous.
REASON :
It is horse-shoe shaped. Show Answer

Q82) Which one among the following hormones Stimulates the plants cells to grow in a manner such that the plant appears to be bent towards light ? Show Answer

Q83) Which one among the following produces seeds but not flowers ? Show Answer

Q84) Which one of the following is an example of legume ? Show Answer

Q85) Which of the following pairs is the source of vitamin-C ? Show Answer

Q86) The main function of the inner bark of a woody plant is to Show Answer

Q87) What is the reason for India being a major producer of different varieties of fruits and vegetables ? Show Answer

Q88) Which one of the following vegetables is not obtained from wild cabbage ? Show Answer

Q89) Which part of saffron plant is used to obtain the spice 'saffron' ? Show Answer

Q90) Microplye lies close to hilum or at side of hilum in Show Answer