Write four differences between algae and fungi. - Vidyadip

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Write four differences between algae and fungi.

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More "4 Marks Questions" from PART - 1 - Unit I : CH - 2 Biological Classification→PART - 1 - Unit I : CH - 2 Biological Classification — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

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Various parts of the plant such as stems leaves, and even fruits are modified into underground parts to perform various functions such as stems, leaves, and even fruits.
The stems in ginger and banana are underground and swollen due to storage of food. They are called rhizome. Rhizome of ginger is a modification of stem because it bears nodes, internodes, terminal buds, scaly leaves and buds, which give rise to aerial shoots. It is not a root because root does not have nodes and internodes. Also, rhizome does not perform the function of roots i.e. anchorage and absorption, rather it serve as reservoir for storage of food. Similarly, corm is an underground stem in Colocasia (jimikand) The tips of the underground stem in potato become swollen due to accumulation of food and forms tuber.

i. Observe the given flow chart and mention what are the four types of Underground stem modification also mention one example of each. (1)
ii. Ginger is an underground stem but why it is distinguished from a root? (1)
iii. Why do the tips of modified stems in potatoes become swollen? (2)

OR

Are all underground parts of a plant roots? (2)

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For the classification of housefly, correctly match the terms given in Column-I with the terms given in Column-II.

Column-I	Column-II
1. Family	(i) Arthropoda
2. Order	(ii) Insecta
3. Class	(iii) Muscidae
4. Phylum	(iv) Diptera

Muscles and nerve fibers allow a person to move their body and enable the internal
organs to function. There are more than 600 muscles in the human body. A kind of
elastic tissue makes up each muscle, which consists of thousands, or tens of thousands,
of small muscle fibers. Each fiber comprises many tiny strands called fibrils.
Impulses from nerve cells control the contraction of each muscle fiber. A muscle’s
strength depends mainly on how many fibers are present.

(1). Major protein constituent of muscle fibre is
(a)Actin (b)Tropomyosin (c)Myosin (d)Calnexin

(2).Myofibrils show dark and light band in
(a) cardiac muscle
(b) Striped muscle
(c) cardiac muscle and unstriated muscle
(d) cardiac muscle and striped muscle

(3). Unstriped muscle present in the
(a) Intestinal muscle (b) Leg muscle (c) Muscle of fore limb (d) Heart muscle

(4). Which of the following muscle gets into fatigue very early
(a) Skeletal muscle (b) Smooth muscle (c) Cardiac muscle (d) All the above

(5). The structural and functional unit of the striated muscle fibre is called
(a) Sarcolemma (b) Sarcomere (c) Sarcoplasm (d) Myofibril

Write four differences between lined and unlined sutures.

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Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.

Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?

Write any four differences between afferent arteriole and efferent arteriole.

Draw a labelled diagram of the schematic view of human respiratory system. Write any four differences between right lung and left lung.

Write any four economic importance of Pteridophyta.