The correct option is C Total stem parasiteCuscuta #160;(Dodder) plant is an #160;obligate or total stem parasite. #160;It lacks chlorophyll and has no c ...

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Other Modes of Nutrition

Cuscuta is a

Question

Cuscuta is a

Total stem parasite

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Partial stem parasite

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Epiphyte

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Total root parasite

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Solution

The correct option is C Total stem parasite
Cuscuta (Dodder) plant is an obligate or total stem parasite. It lacks chlorophyll and has no connection with the soil after the seeding stage. Therefore it is totally dependent on the host for organic food materials and supply of water and minerals salts. The parasitic plant pierces the stem and sucks the nutrients from the host plant.
Thus, the correct answer is option A.

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Similar questions

Q. Match List I(Parasites) with List II(Type) and select the correct answer using the codes given the lists.

List-I(Parasites)	List-II(Type)
a. Cascuta sp.	$1$ . Total root parasite
b. Loranthus sp.	$2$ . Partial root parasite
c. Orabanche sp.	$3$ . Total stem parasite
d. Santalum sp.	$4$ . Partial stem parasite

Q. A partial (stem or root) parasitic plant is one which

Q. In Cuscuta, the root rots away after stem makes contact with a host plant. What is the possible reason for this condition?

Q. Select the correct option:Figures X and Y represent the transverse sections of _______ and ________ respectively.

X	Y
(A) dicot root -	dicot stem
(B) monocot root -	monocot stem
(C) dicot stem -	monocot stem
(D) monocot stem -	dicot stem

Statements:

All flowers are stems.

All stems are roots.

Conclusions:

All roots are flowers.

All stems are flowers.

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