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Substances which originate at the tip of the stem and control
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Easy
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Solving time: 2 mins

Substances which originate at the tip of the stem and control growth elsewhere are

A
Food material

B
Auxins or hormones

C
Vitamins

D
Enzymes

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Book

Book:

Biology-for-NEET-Volume-1-Class-XI

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[B] Hormones are secreted by cells in one part of the plant and produce their effect in other part of the plant.
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Practice questions from Biology-for-NEET-Volume-1-Class-XI

Question 1
Medium
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Views: 5,768

Any one parameter is not good enough to demonstrate growth through the life of a flowering plant because -
  1. lateral meristems appear later in life.
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  4. none of the above
Topic

Topic:

Plant Growth and Development

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

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Easy
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The gibberellins are plant growth hormones. They cause elongation of stems. Gibberellin was first isolated by Japanese workers from
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Topic:

Plant Growth and Development

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

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Question 3
Easy
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Which one of the following plant hormones is known as a stress hormone
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Topic

Topic:

Plant Growth and Development

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

View 2 solutions

Question 4
Easy
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It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied plants throughout the year to increase yield?
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  4. Gibberellin and Abscisic acid
Topic

Topic:

Plant Growth and Development

Book

Book:

Biology-for-NEET-Volume-1-Class-XI

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Gibberellins were first discovered in.fungal genus:
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Question Text
Substances which originate at the tip of the stem and control growth elsewhere are
TopicPlant Growth and Development
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes99