Chapter 7
Chemical coordination in plants
Name the followings
1. Abscisic acid is also known as…..
2. Plants mostly depicts their movements in the form of….
3. The term phototropism literally means….
4. When an organism or a segment of an organism turns in a specific direction in response to
external stimulus. This movement is called…..
5. Movement of plants in response to earth’s gravitational force
6. Device Used in laboratory for the purpose of demonstration of geotropism
7. Movement of plants in response to touch
8. Movement of pollen tube in style towards ovule is an example of…..
9. Apical dominance in plants is caused by hormone
10. Hormone regulates the opening and closing of stomata
Multiple choice questions
1. The depiction of plants movements are mainly the result of transformation that occurs in
A ) External factors b ) Internal factors
C ) Both external and internal factors d ) None of the above
2. Which of the following plant hormone mainly distributed in meristem region
A. Ethylene B. Auxin
C. Gibberellin
D. Abscisic acid
3. Who first contributed in coining the term “ Auxin” ?
A ) F.W .Went b ) Jacobus Boomsma
C )S. Simon Sanches d ) Charles Darwin
4. The Greek term ‘ Auxein ‘ literally implies
A ) To shrink b ) To recede
C ) To cease d ) To grow
5. Which one of the following growth hormone was first discovered in plants ?
A ) Auxins b ) Cytokinins
C ) Gibberellins d ) Ethylene
Chemical coordination in plants
Name the followings
1. Abscisic acid is also known as…..
2. Plants mostly depicts their movements in the form of….
3. The term phototropism literally means….
4. When an organism or a segment of an organism turns in a specific direction in response to
external stimulus. This movement is called…..
5. Movement of plants in response to earth’s gravitational force
6. Device Used in laboratory for the purpose of demonstration of geotropism
7. Movement of plants in response to touch
8. Movement of pollen tube in style towards ovule is an example of…..
9. Apical dominance in plants is caused by hormone
10. Hormone regulates the opening and closing of stomata
Multiple choice questions
1. The depiction of plants movements are mainly the result of transformation that occurs in
A ) External factors b ) Internal factors
C ) Both external and internal factors d ) None of the above
2. Which of the following plant hormone mainly distributed in meristem region
A. Ethylene B. Auxin
C. Gibberellin
D. Abscisic acid
3. Who first contributed in coining the term “ Auxin” ?
A ) F.W .Went b ) Jacobus Boomsma
C )S. Simon Sanches d ) Charles Darwin
4. The Greek term ‘ Auxein ‘ literally implies
A ) To shrink b ) To recede
C ) To cease d ) To grow
5. Which one of the following growth hormone was first discovered in plants ?
A ) Auxins b ) Cytokinins
C ) Gibberellins d ) Ethylene
