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Q. No.In the given schematic diagram of ultrastructure of a myofibril, the functional unit of muscle contraction is shown by the letter:
| 1. | A | 2. | B |
| 3. | C | 4. | D |
Subtopic: Animal Tissue: Muscle Types & Skeletal Muscles |
70%
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Which of the following statements is not correct with respect to the epithelial tissue?
| 1. | It covers the external surface of the body and the internal surface of many organs. |
| 2. | The neighbouring cells are held together by cell junctions and there is very little extracellular material. |
| 3. | The epithelial cells rest on a cellular basement membrane that separates it from underlying connective tissue. |
| 4. | There is no blood vessel supplying the nutrients to the epithelial cells. |
Subtopic: Simple Epithelium |
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Communication junctions found at some fusion points that allow the cardiac muscle cells to contract as a unit are called as:
1. Intercalated discs
2. Sarcolemma
3. Nodes of Ranvier
4. Motor end plates
Subtopic: Cardiac Muscle & Smooth Muscle |
89%
From NCERT
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Identify the correct statement:
| 1. | Fallopian tubes are lined with brush-bordered epithelium. |
| 2. | Proximal convoluted tubule of the nephron is lined by ciliated epithelium. |
| 3. | Areolar tissue is a dense, regular connective tissue. |
| 4. | Skin has dense irregular connective tissue. |
Subtopic: Connective Tissue |
67%
From NCERT
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In male cockroaches, the genital pouch is bounded by:
| 1. | 9th and 10th terga dorsally and 10th sternum ventrally |
| 2. | 9th tergum dorsally and 9th and 10th sterna ventrally |
| 3. | 9th and 10th terga dorsally and 9th sternum ventrally |
| 4. | 9th and 10th terga dorsally and 9th and 10th sterna ventrally |
Subtopic: Cockroach:Male Reproductive System |
66%
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Tendons attach:
1. Skeletal muscle to bone
2. Bone to bone
3. Muscle to muscle
4. Smooth muscle to bone
Subtopic: Connective Tissue | Cardiac Muscle & Smooth Muscle |
86%
From NCERT
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | In nearly all animal tissues, specialised junctions provide both structural and functional links between its individual cells. |
| Statement II: | Cell junctions are more common in connective, muscle and neural tissue than in epithelium. |
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Glandular Epithelium & Cell Junction |
65%
From NCERT
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Which of the following respiratory methods is used by frogs when they are in water?
1. Pulmonary respiration
2. Tracheal respiration
3. Branchial respiration
4. Cutaneous respiration
1. Pulmonary respiration
2. Tracheal respiration
3. Branchial respiration
4. Cutaneous respiration
Subtopic: Frogs: Anatomy (Respiratory System) |
83%
From NCERT
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What is the name of the double fold of peritoneum in frogs that adheres the testes to the upper part of the kidneys?
1. Mesovarium
2. Mesentery
3. Mesorchium
4. Mesonephros
1. Mesovarium
2. Mesentery
3. Mesorchium
4. Mesonephros
Subtopic: Frogs: Anatomy (Excretory System) |
85%
From NCERT
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Consider the given statements:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The alimentary canal of frogs is short because they are carnivores and hence the length of the intestine is reduced. |
| II: | The liver secretes bile which is stored in the pancreas. |
| III: | Food is captured by the bilobed tongue in frogs. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Frogs: Anatomy (Digestive System) |
69%
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