Growth and Development in Plants Set 1

Q1 | Oat - coleoptile test (coleoptile-test) is conducted for which hormone ?

Q2 | Gibberrelin participate in which of the following process?

Q3 | Tropic movement is due to

Q4 | What is the period of cell formation to cell differntiation ?

Q5 | What is the required temperature for growth in most of the plants?

Q6 | Zeatin is an example of

Q7 | Spiral developement of tendrils? (BHU 1989, CBSE 1999, 1995), (MPPMT 1992, CPMT 1993) ( CETCHO 2000,AIIMS 2000) (JK CMEE 2004)

Q8 | State the full form of IAA (NCRT 1974)

Q9 | Which of the following physiological process performed by gibberrelic acid?

Q10 | Which of the following is used to enhance colour of fruits and more juice in fruits unnaturally?

Q11 | Which hormone is responsible for apical dominance?

Q12 | With which reaction Phytochrome is associated ?(AIMS- 1989, 1990, CBSE 1988, BHU 1981, 1991)

Q13 | In the absence of light, amount of which of the following is increased ?

Q14 | When is abscission- layer formed? (AIIMS- 1980)

Q15 | Vernalization is (MPPMT- 1990, AMU- 1999, IKCMEE- 2000)

Q16 | What is initiative substance of IAA? (PMT- 1990- APMEE 2002)

Q17 | What is apical dominance? (CPMT- 1989)

Q18 | Which of the following is water stress hormone? (CBSE-1993, MPPMT-1995, BHU 1998, CETCHD, Kerala 2000, Orissa- 2003)

Q19 | If apical region of stem is removed from any plant, what is observed? (CMPT - 1993, CBSE -1994, 2000, KARNATAKA - 2000

Q20 | Which of the hormone is synthetic ? (MPPMT 1996, AIIMS 1996, BHU 1997, CPMT 1999)

Q21 | What is 2-4 D ?

Q22 | What is agent Orange ? (CBSE 1998, AIMS 1999)

Q23 | One plant group kept for 12 hrs in day and 12 hrs in night and flowering is observed in it. Another plant group is kept similarly for day - night period and for very short time light is given during dark period it do not flower. What is such type of plant called ? (CBSE 2004)

Q24 | How gibberrelin accelerates seed germination ? (AIIMS 2005)

Q25 | What is the colour of Phytochrome pigment ?