The growth of root is geotropism, and the growth of stem is ………
A) Negative geotropism
B) Thigmotropism
C) Chemotropism
D) Hydrotropism
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(i) Find the value of k for which x=1 is a root of the equation `x^(2)+kx+3=0.` Also, find the other root. (ii) Find the values of a and b for which `
Correct Answer - (i)`k=-4," other root "=3" "(ii)" "a=4,b=5`
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The girth of the stem or root increases due to A) Apical meristems
B) Lateral meristems
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Distinguish between anatomy of dicot root and monocot root.
Anatomy of dicot root Anatomy of monocot root 1. Pith is narrow. Pith is large and well developed. 2. Diarch, triarch or tetrarch condition can be observed. (Xylem bundles vary from two to six...
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Distinguish between anatomy of dicot stem and monocot stem.
Anatomy of Dicot stem Anatomy of Monocot stem 1. Epidermis shows presence of multicellular trichomes. Epidermis is without trichomes. 2. Hypodermis is made up of collenchymatous cells. Hypodermis is made up of sclerenchymatous cells. 3. Medullary rays are...
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In which of the following characters, a monocot root differs from dicot root?
The correct answer is (B) Large pith
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Name any two plants in which root caps are replaced by root pockets.
In hydrophytes, root caps are replaced by root pocket e.g. Pistia, Eichhornia etc.
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When the root is swollen in the middle and tapers at both ends, it will be called as root.
The correct answer is (B) fusiform
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In which of the following plants, root cap is replaced by root pocket?
The correct answer is (A) Pistia
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Legume plants have root nodules. Rhizobium bacteria is present in the root nodules
(A) Symbiosis
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Tap root system consists of a single root, called …………………
Tap root system consists of a single root, called Taproot
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