Ch-12 Questions 21 to 40

Chapter-12
Reproduction in Plants
Sr NO	Question.	Answer
21.	_______ is the point of attachment of the leaf at the node.	Axil.
22.	What are called vegetative buds?	There are buds in the axil (point of attachment of the leaf at the node) of leaves which develop into shoots. These buds are called vegetative buds.
23.	A Vegetative bud consists of a short _____ around which immature overlapping leaves are folded.	Stem.
24.	The vegetative buds can also give rise to _______.	New plants.
25.	Scars present on potato are also called "____" .	Eyes.
26.	How we can germinate a new potato?	Scars present on potato are also called "eyes". Cut a few pieces of a potato, each with an eye and bury them in the soil. Water the pieces regularly for a few days. Sprouts will germinate from the eye.
27.	Name another plant which sprout from scar or eyes on it?	Ginger.
28.	_________ (sprout leaf plant) has buds in the margins of leaves.	Bryophyllum.
29.	How Bryophyllum reproduce?	Bryophyllum (sprout leaf plant) has buds in the margins of leaves. If a leaf of this plant falls on a moist soil, each bud can give rise to a new plant.
30.	Give name of two plants which reproduce through its roots.	(a). Sweet Potato (b). Dahlia.
31.	Name a plant which when detached from main plant become an independent plant.	Cacti.
32.	What are advantages of Vegitative Propagation?	Plants take less time to grow and bear flowers and fruits earlier than those produced from seeds. The new plants are exact copies of the parent plant, as they are produced from a single parent.
33.	Plants produce seeds as a result of__________.	Sexual reproduction.
34.	The tiny organisms like _____ can be seen only under a microscope.	Yeast.
35.	Yeast multiply every few hours if sufficient _____ are made available to them.	Nutrients.
36.	The small bulb-like projection coming out from the yeast cell is called a ____.	Bud.
37.	How does yeast reproduce and multiply?	The small bulb-like projection coming out from the yeast cell is called a bud. The bud gradually grows and gets detached from the parent cell and forms a new yeast cell. The new yeast cell grows, matures and produces more yeast cells.
38.	When water and nutrients are available algae grow and multiply rapidly by _____.	Fragmentation.
39.	How does algae reproduce and multiply?	When water and nutrients are available algae grow and multiply rapidly by fragmentation. An alga breaks up into two or more fragments. These fragments or pieces grow into new individuals.
40.	Fungi on a bread piece grow from ____ which are present in the air.	Spores.

Ch-12 Questions 1 to 20

Chapter-12

Reproduction in Plants

Sr NO.	Question	Answer
1.	What is reproduction?	The production of new individuals from their parents is known as reproduction.
2.	How do plants reproduce?	Plants reproduce through seeds or through other parts.
3.	There are _______ modes of reproduction in plants.	Different.
4.	What are various parts of a plant?	Leaves, Flower, Fruit, Stem, Roots, Seed.
5.	Most plants have roots, stems and leaves. These are called the _______of a plant.	Vegetative parts
6.	After a certain period of growth, most plants bear______.	Flowers
7.	Mang plants are flowering in ______ and riping in _______?	Spring, Summer.
8.	Seeds ______ and form new plants.	Germinate.
9.	What is the function of flowers in plants?	The flowers perform the function of reproduction in plants. Flowers are the reproductive parts of a plant.
10.	Flowers are the _________ of a plant.	Reproductive Parts.
11.	Among the following what fact is true with regard to the characteristic of a flower. (	(a).A flower may have either the male part or the female part or both male and female parts. (b). A flower may have both male and female parts. (c). Fact (a) or (b). (d). None of these facts are true.
12.	How many types of methods are among plants for producing offspring.	Two types.
13.	What are two types of categories in plants prevalent for producing offspring?	Asexual and Sexual reproduction.
14.	How plants reproduce asexually?	In asexual reproduction new plants are obtained from seeds.
15.	How plants reproduce sexually?	In sexual reproduction plants can give rise to new plants with seeds.
16.	In asexual reproduction new plants are obtained without production of seeds or ____.	Spores .
17.	Vegetative propagation is a type of ____ reproduction in plants.	Asexual.
18.	How plants are reproduced through Vegetative propagation? Why the method is so called?	In Vegetative propagation new plants are produced from roots, stems, leaves and buds. Since reproduction is through the vegetative parts of the plant, it is known as vegetative propagation.
19.	How plants like sugarcane, potato, rose e.t.c reproduce?	These plants are reproduced through Vegetative propagation. New sugar cane plants are produced from a mature sugarcane stem, rose from brance and potato from another potato.
20.	A _______ is a part of the stem/branch at which a leaf arises.	Node.

Ch-11 Crossword Puzzle Solution

Transportation in Animals and Plants

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Ch-11 Crossword Puzzle Problem

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1. One type of cells present in blood are the red blood cells (RBC) which contain a red pigment called ____________.

4. The wastes dissolved in water are removed by kidneys as _____.

6. The blood also has __________ which fight against germs that may enter our body.(Abbreviation)

11. A part of water absorbed by plants evaporates through the _____ present on the surface of the leaves by the process of transpiration.

12. two lower chambers of our heart are called the _____.

13. The clot (after a cut on our body) is formed because of the presence of another type of cells in the blood, called ______.

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2. ________ carry oxygen-rich blood from the heart to all parts of the body.

3. Blood is a ______?

4. Some land animals like birds, lizards, snakes excrete a semi-solid, white coloured compound What chemical it contain?

5. The wastes dissolved in water are removed by _______ as Urine.

7. The fluid part of the blood is called ______.

8. Your heart is roughly the size of your ____.

9. Aquatic animals like fishes, excrete cell waste as _______ which directly dissolves in water.

LEFT

10. The vascular tissue for the transport of water and nutrients in the plant is called the ____.