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4

The shape of a persons ear is due to mainly to

A. dense regular connective tissue

B. dense irregular connective tissue

C. elastic cartilage

D. fibrocartilage

Correct Answer :

C. elastic cartilage


Elastic cartilage or yellow cartilage is a type of cartilage present in the outer ear, Eustachian tube and epiglottis. It contains elastic fibre networks and collagen fibres. The principal protein is elastin.

Related Questions

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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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4

Which of the following statement (s) is/are correct ?
  1. Loose connective tissue contains fibroblasts, macrophages and mast cells.
  2. Adipose tissue is a type of dense connective tissue located mainly beneath the skin.
  3. Tendons and ligaments are examples of dense irregular connective tissue.
  4. Cartilage, bones and blood are various types of specialized connective tissue.

A. Only (i)

B. Both (ii) and (iv)

C. Both (i) and (iii)

D. (i), (iii) and (iv)

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4

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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4

Which of the follwing statement(s) is/are correct ?
  1. Cockroaches are brown or black bodied animals that are included in class insecta of phylum arthropoda.
  2. Males bear a pair of short, thread like anal styles which are absent in females.
  3. Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen.
  4. The nymph grows by moulting about 13 times to reach the adult form.

A. Only (i)

B. Both (ii) and (iii)

C. Both (i) and (ii)

D. All of the above

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4

Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.

A. reptilia; annelida

B. insecta; arthropoda

C. insecta; annelida

D. reptilia; arthropoda

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4

Which of the following animal's sensory system does not has eyes but does possess light and touch sensitive organs (receptor cells) to distinguish the light intensities and to feel the vibrations in the ground?

A. Frog

B. Snake

C. Earthworm

D. Cockroach

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4

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

Read the following statements and answer the question.
  1. They have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
  2. They support and protect softer tissues and organs.
  3. Osteocytes are present in the spaces called lacunae.
  4. 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 ?

A. Cartilage

B. Bone

C. Blood

D. Neurons

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4

Which of the following statement is incorrect regarding cuboidal epithelium ?

A. It is an epithelial tissue.

B. It is composed of a single layer of cube-like cells.

C. They are found in the walls of blood vessels and air sacs of lungs.

D. Secretion and absorption are the main functions of these tissue.

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4

Phallic organs in cockroach are related to

A. male excretory system.

B. male reproductive system.

C. female excretory system.

D. female reproductive system.

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4

Match the description given in column I with their examples given in column II and choose the correct option.
Column IColumn II
(Description)(Example)
1. Aquatic respiratoryA. Skin organ
2. Organ which actsB. Ureter urogenital duct and opens into the cloaca
3. A small median chamberC. Cloaca that is used to pass faecal matter, urine and sperms to the exterior
4. A triangular structureD. Sinus venosus which joins the right atrium and receives blood through vena cava

A. 1 - A, 2 - B, 3 - C, 4 - D

B. 1 - C, 2 - A, 3 - D, 4 - B

C. 1 - B, 2 - A, 3 - C, 4 - D

D. 1 - C, 2 - B, 3 - D, 4 - A

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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-IColumn-II
(Types of connective)(Examples)
A. Loose connectiveI. Tendons and ligaments tissue
B. Dense regularII. Skin tissue
C. Dense irregularIII. Cartilage, bones, blood tissue
D. SpecializedIV. 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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4

Match the terms given in column-I with their feature given in column-II and choose the correct option.
Column-IColumn-II
(Terms)(Features)
A. Exocrine glandI. They help to stop substances from leaking across a tissue
B. Endocrine glandII. Hormones are secreted directly into the fluid bathing the gland
C. Tight junctionsIII. They perform cementing to keep neighbouring cells together.
D. Adhering junctionsIV. Secretes mucus, saliva, earwax, oil, milk, digestive enzymes and other cell products

A. A IV; B II; C I; D III

B. A II; B IV; C I; D III

C. A IV; B II; C III; D I

D. A IV; B I; C II; D III

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4

Match column-I (type of epithelium) with column-II (Description) and choose the correct option.
Column-IColumn-II
(Types of epithelium)(Description)
A. SquamousI. It is composed of a epithelium single-layer of cube-like cells
B. CuboidalII. Having cilia on their free epithelium surface
C. ColumnarIII. It is composed of a single epithelium layer of tall and slender cells
D. CiliatedIV. It is made up of a single thin epithelium layer of flattened cells with irregular boundaries

A. A IV; B I; C III; D II

B. A I; B IV; C III; D II

C. A IV; B I; C II; D III

D. A IV; B III; C I; D II

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4

Which of the following is involved in the production of new blood cells ?

A. Adipose cell

B. Bone marrow

C. Liver

D. Matrix

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4

Compound squamous epithelium is found in

A. stomach

B. intestine

C. trachea

D. pharynx

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4

Which of the following statement(s) is/are correct regarding compound epithelium ?

A. It is made of more than one layer of cells and thus has a limited role in secretion and absorption.

B. Their main function is to provide protection against chemical and mechanical stresses.

C. They cover the dry surface of the skin, moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and pancreatic ducts.

D. All of the above

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4

The figure given below shows the head region of cockroach. Identify A to F.

A. A- Compound eye, B-Ocellus, C-Maxilla, D-Mandible, E-Labrum, F-Labium

B. A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labrum, F-Labium

C. A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labium, F-Labrum

D. A- Ocellus, B-Compound eye, C-Maxilla, D-Mandible, E-Labrum, F-Labium

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4

In cockroach, the testes are present in

A. 3, 4, 5 abdominal segments

B. 4, 5, 6 abdominal segments

C. 5, 6, 7 abdominal segments

D. 6, 7, 8 abdominal segments

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4

If the head of cockroach is cut off, it will still alive for as long as one week. It is because of

A. the body which is covered with a hard chitinous exoskeleton.

B. head which holds a bit of nervous system.

C. head which is of no use.

D. food capturing appratus which is found elsewhere.

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4

Statement 1 : Cartilage (protein matrix) and bone (calcium matrix) are rigid connective tissue.
Statement 2 : Blood is connective tissue in which plasma is the matrix.

A. Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1

B. Statement -1 and statement-2 are true and statement-2 is not a correct explanation for statement -1

C. Statement - 1 is true and statement- 2 is false

D. Both the statements are false.

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4

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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4

The following figures A, B and C are types of muscle tissue. Identify A, B and C.

A. A Smooth muscle, B Cardiac muscle, C Skeletal muscle

B. A Skeletal muscle, B Smooth muscle, C Cardiac muscle

C. A Cardiac muscle, B Smooth muscle, C Skeletal muscle

D. A Smooth muscle, B Skeletal muscle , C Cardiac muscle

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4

Nervous tissue cells that play several supporting roles but do not transmit impulses are called

A. glial cells

B. dendrites

C. nerve cells

D. neurons

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4

Which of the following statement(s) regarding cell junctions is/are correct ?

A. Tight junctions help to stop substances from leaking across a tissue.

B. Adhering junctions perform cementing to keep neighbouring cells together.

C. Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small molecules and sometimes big molecules.

D. All of the above

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4

Match column-I with column-II and choose the correct option.
Column-IColumn-II
A. PeriplanetaI. Hepatic caecae americana
B. A ring of 6-8 blindII. Phylum arthropoda tubules
C. Vascular systemIII. Spiracles
D. 10 pairs of smallIV. Malpighian tubules holes
E. ExcretionV. 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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4

Which of the following statements is not correct regarding neural tissue ?

A. It exerts the greatest control over the bodys responsiveness to changing conditions.

B. Chondrocytes, the unit of neural system are excitable cells.

C. Neuroglial cells protect and support neurons.

D. When a neuron is suitably stimulated, an electrical disturbance is generated.

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4

Smooth muscles are______.

A. voluntary, branched, uninucleate

B. voluntary, multinucleate, cylindrical

C. involuntary, cylindrical, multinucleate

D. involuntary, spindle shaped, uninucleated, tapering

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4

Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following.
Which of the cells are least likely to be replaced by new cells?

A. Liver cells

B. Neurons

C. Malpighian layer of the skin

D. Osteocytes

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4

The kind of epithelium which forms the inner walls of blood vessels is

A. cuboidal epithelium

B. columnar epithelium

C. ciliated columnar epithelium

D. squamous epithelium