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Bryophytes

Rhizoids have...

Question

Rhizoids have the same function as roots in flowering plants.

A

True

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B

False

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Solution

The correct option is B False
Rhizoids are very simple, whereas roots are much more complicated. A rhizoid (found in bryophytes or ferns) is basically just a filament that anchors the plant to the ground. A root, on the other hand contains vascular tissue, playing a key role in water and nutrient uptake.

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Q. Match the terms to these definitions:
Angiosperm, anther, carpel, conifer, dicotyledon, fern, gametophyte, gymnosperm, monocotyledon, moss, nonvascular plant, pollination, rhizoid, rhizome, root, seed, sporophyte, strobilus, vascular plant, woody plant, cotyledon, herb, tree, caudex
.......... are a group of flowering plants; members have one embryonic leaf; parallel-veined leaves scattered vascular bundles, and other characteristics.

Q. Match the name of the plants given in column A with their characteristics given in columns B and C. Write the answer in the space provided.

Plants	Characteristics
Column A	Column B	Column C
(A) Red algae	(a) Seeds not enclosed by fruits, non-flowering	(i) Vegetative reproduction fragmentation, rhizoids are absent.
(B) Marchantia	(b) Seeds enclosed by fruits, tripetalous	(ii) Reticulate veins, presence of primary root.
(C) Pinus	(c) Thalloid structure, phycoerythrin in excess.	(iii) Gametophyte-adult plant body, rhizoids are present.
(D) Mustard	(d) Thalloid structure, sporophyte is chlorophyllous.	(iv) Parallel venation, primary root absent.
	(e) Seeds enclosed by fruit teetrapetalous	(v) Cones are the reproductive structures microspores contain female gametes.
	(f) Thalloid structure, sporophyte is non chlorophyllous	(vi) Cones are the reproductive structures, megaspores contain female gametes.

Q. Function of vessels in flowering plants is

Q. How many of the following statement(s) is/are true for bryophytes?
I. They grow mostly in moist areas.
II. They have an undifferentiated plant body.
III. The rhizoids help in reproduction.

Q. Fill in the blanks:
1. ...................... is the male part of the flower.
2. Ovule grows into ...................... on fertilisation.
3. Leaves are green as they contain ...................... .
4. The wheat plant has ...................... venation.
5. Plants with fibrous roots have ...................... venation.

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