Related Questions
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The supportive skeletal structures in the human external ears and in the nose tip are examples of
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In cockroach head can move in all directions due to
B. fusion of all 6 segments of head.
D. head is small and light weight.
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Which of the following type of muscle tissue is being described on the basis of given statements ?
- These muscle fibres taper at both ends and do not show striations.
- The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
- They are involuntary as their function cannot be directly controlled.
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4
Match the types of connective tissue given in column-I with their examples given column-II and choose the correct option.
Column-I | Column-II |
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(Types of connective) | (Examples) |
A. Loose connective | I. Tendons and ligaments tissue |
B. Dense regular | II. Skin tissue |
C. Dense irregular | III. Cartilage, bones, blood tissue |
D. Specialized | IV. Fibroblasts, macrophages connective tissue and mast cells |
A. A I; B IV; C II; D III
B. A I; B IV; C III; D II
C. A IV; B I; C II; D III
D. A IV; B II; C I; D III
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Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?
- It consists of a network of trachea, that open through 12 pairs of small holes called spiracles present on the lateral side of the body.
- Thin branching tubes carry oxygen from the air to all the parts.
- The opening of the spiracles is regulated by sphincters.
- Exchange of gases take place at the tracheoles by diffusion.
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Muscle tissue cells are contractile, which means they
A. are responsible for the production and secretion of enzymes.
B. are specialized in contraction and relaxation.
C. help in the movement of involuntary organs only.
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Epithelial tissue is distinguished from connective tissue, muscular, or nervous tissue by its
A. large extracellular matrix.
C. ability to carry action potentials.
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Which of the follwing statement(s) is/are correct ?
- Cockroaches are brown or black bodied animals that are included in class insecta of phylum arthropoda.
- Males bear a pair of short, thread like anal styles which are absent in females.
- Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen.
- The nymph grows by moulting about 13 times to reach the adult form.
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4
Which statement regarding anal cerci and anal style in cockroach is correct?
A. Anal cerci are absent but anal styles are present in male.
B. Anal cerci are absent and anal styles are present in female.
C. Anal styles are absent and anal cerci are present in male.
D. Anal styles are absent and anal cerci are present in female.
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Which of the following type of cell junction is not found in animal tissues ?
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The given figure shows the nephridial system of earthworm and answer the question.
Select the option which shows the correct identification and the function of the structure marked as X.
A. Lateral heart. It is a blood pumping organ.
B. Calciferous glands. They neutralize the humic acid present in humus.
C. Nephridia. It regulates the volume and composition of the body fluids.
D. Blood glands. They produce blood cells and haemoglobin which is dissolved in blood plasma.
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Which of the following statement(s) is/are correct regarding cockroaches ?
- The body of the cockroach is segmented and divisible into three distinct regions head, thorax and abdomen.
- Blood vascular system is of closed type.
- They are monoecious and both sexes have well developed reproductive organs.
- The development of P. americana is paurometabolus, meaning there is development through nymphal stage.
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4
Consider the following statements regarding cockroach and mark the correct option.
- Head is formed by the fusion of 6-segments.
- Mouth parts are biting and chewing type.
- Crop is the part of mid gut.
B. (ii) and (iii) are correct
C. (i) and (ii) are correct
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Which of the following animals maintain ecological balance?
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Neuroglia are
A. excitable cells of neural tissue.
B. supporting and non-excitable cells of neural tissue.
C. two to three times in volume of neural tissue.
D. protective and excitable cells of neural tissue.
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4
Read the following statements and answer the question.
- They have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
- They support and protect softer tissues and organs.
- Osteocytes are present in the spaces called lacunae.
- They also interact with skeletal muscles attached to them to bring about movements.
Which of the following type of tissue is being described by above statements ?
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4
Intercalated discs are the communication junctions between the cells of
D. nerve and striated muscles
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In which one of the following preparations, cell junctions come across most frequently ?
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Hair present in the skin are
A. epidermal in origin and made of dead cells.
B. epidermal in origin and made of living cells.
C. dermal in origin and made of living cells.
D. dermal in origin and made of dead cells.
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Lack of blood supply and presence of the noncellular basement membrane are the characteristics of the
B. fluid connective tissue
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Statement 1: Typhlosole increases the effective area of absorption in the intestine.
Statement 2: Typhlosole, present in the intestine, is the characteristic feature of cockroach.
A. Statement 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B. Statement 1 and 2 are true and statement 2 is not the correct explanation of statement 1.
C. Both statements 1 and 2 are false.
D. Statement 1 is true and statement 2 is false.
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4
Refer the given figure and identify the correct characteristic feature.
- It is a type of loose connective tissue.
- It contains fibroblast, macrophages, collagen fibres and mast cells.
- The cells of this tissue are specialized to store fats.
- The wall of internal organs such as the blood vessels, stomach and intestine contains this type of tissue.
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The ciliated columnar epithelial cells in humans occur in
A. Eustachian tube and stomach lining
B. bronchioles and fallopian tubes
C. bile duct and oesophagus
D. fallopian tubes and urethra
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4
Read the following statements.
- It is a contractile tissue present only in the heart.
- Cell junctions fuse the plasma membranes of these cells and make them stick together.
- Communication juntions at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract.
Which of the following type of tissue is being described by the above statements ?
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Which of the following statement (s) is/are correct ?
- Loose connective tissue contains fibroblasts, macrophages and mast cells.
- Adipose tissue is a type of dense connective tissue located mainly beneath the skin.
- Tendons and ligaments are examples of dense irregular connective tissue.
- Cartilage, bones and blood are various types of specialized connective tissue.
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Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?
B. Flagellum and Medullary sheath
C. Nucleus and Mitochondria
D. Cell body and Dendrites
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When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
A. connective tissue cells
B. new smooth muscle cells
C. new cardiac muscle cells
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Match column-I with column-II and choose the correct option.
Column-I | Column-II |
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A. Periplaneta | I. Hepatic caecae americana |
B. A ring of 6-8 blind | II. Phylum arthropoda tubules |
C. Vascular system | III. Spiracles |
D. 10 pairs of small | IV. Malpighian tubules holes |
E. Excretion | V. Open type |
A. A I; B II; C III; D IV; E V
B. A II; B I; C V; D III; E IV
C. A II; B I; C III; D V; E IV
D. A III; B IV; C II; D V; E I
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Non-ciliated simple columnar epithelium often contains _______, which increase the surface area for secretion and absorption.
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Nervous tissue cells that play several supporting roles but do not transmit impulses are called