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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.

Correct Answer :

B. male reproductive system.


The phallic organs (also called conglobate gland) are related to male reproductive system of cockroach. This organ is present beneath the utricular gland in the 6th segment. It communicates with exterior by a pore close to gonophore.

Related Questions

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4

Match the epithetial tissue given in column-I with its location given in column-II and choose the correct option.
Column IColumn II
(Epithelial tissue)(Location)
A. CuboidalI. Epidermis of skin
B. CiliatedII. Inner lining of blood vessels
C. ColumnarIII. Inner surface of gall bladder
D. SquamousIV. Inner lining of fallopian tube
E. KeratinizedV. Lining of pancreatic duct squamous

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

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

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

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

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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

In cockroach head can move in all directions due to

A. absence of neck.

B. fusion of all 6 segments of head.

C. flexible neck.

D. head is small and light weight.

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4

Statement 1 : Intercalated discs are important regions of cardiac muscle cells.
Statement 2 : Intercalated discs function as boosters for muscle contraction waves.

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 ttatement-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

Which of the following statement(s) is/are correct about muscle tissue ?

A. Each muscle is made of many long, cylindrical fibres arranged in parallel arrays.

B. Muscle fibres contract (shorten) in response to stimulation, then relax (lengthen) and return to their uncontracted state in a coordinated fashion.

C. Muscles play an active role in all movements of the body.

D. All of the above

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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

Refer the given figure and identify the correct characteristic feature.

  1. It is a type of loose connective tissue.
  2. It contains fibroblast, macrophages, collagen fibres and mast cells.
  3. The cells of this tissue are specialized to store fats.
  4. The wall of internal organs such as the blood vessels, stomach and intestine contains this type of tissue.

A. (i) & (ii)

B. (i) & (iii)

C. (ii) & (iii)

D. (iii) & (iv)

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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

Read the following statements.
  1. It is a contractile tissue present only in the heart.
  2. Cell junctions fuse the plasma membranes of these cells and make them stick together.
  3. 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 ?

A. Skeletal muscle

B. Cardiac muscle

C. Smooth muscle

D. Cartilage

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4

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

Which of the following statement(s) is/are correct regarding excretory system of cockroach ?
  1. Excretion is performed by malphigian tubules.
  2. They absorb nitrogenous waste products and convert them into uric acid which is excreted out through hindgut. Hence, this insect called ammonetelic.
  3. In addition, fat body, nephrocytes and uricose glands also help in excretion.

A. Only (i)

B. Both (ii) and (iii)

C. Both (i) and (iii)

D. All of these

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4

The only type of cell seen in a tendon is

A. muscle fibres

B. reticular cells

C. collagenous cells

D. fibroblasts

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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

Which of the following type of muscle tissue is being described on the basis of given statements ?
  1. These muscle fibres taper at both ends and do not show striations.
  2. The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
  3. They are involuntary as their function cannot be directly controlled.

A. Skeletal muscle

B. Smooth muscle

C. Cardiac muscle

D. All of these

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4

Intercalated discs are the communication junctions between the cells of

A. cardiac muscles

B. striped muscles

C. adipose tissue

D. nerve and striated muscles

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4

The major functions of loose connective tissue include

A. occupying spaces between organs and supporting epithelia.

B. supporting and surrounding blood vessels and nerves

C. cushioning organs, storing lipids and facilitating diffusion.

D. All of the above

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4

Select the correct statement regarding Periplaneta americana

A. There are 16 very long malpighian tubules present at the junctions of midgut and hindgut.

B. Grinding of food is carried out only by the mouth parts.

C. Nervous system is located ventrally and consists of segmentally arranged ganglia joined by a pair of longitudinal connectives.

D. Females bear a pair of short thread like anal styles.

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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

Cartilage tissues are likely to be slow in healing following an injury because

A. cartilage cells cannot reproduce.

B. they lack direct blood supplies.

C. the intercellular material is missing.

D. cartilage cells are surrounded by fluids.

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4

General function of gland is to

A. protect the body.

B. control the function of epithelial tissues.

C. produce and secrete specialized compounds to control and maintain different body functions.

D. help to maintain blood pressure and nerve actions.

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4

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

What are the three basic components of connective tissues?

A. Ground substance, cells and basement membrane

B. Cartilage, intercellular matrix and serum

C. Cells, protein fibers and ground substance

D. Collagen, elastin and reticular fibers

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4

The fibres of which of the following muscles are fusiform and do not show striations

A. Skeletal muscles

B. Cardiac muscles

C. Both (a) and (b)

D. Smooth muscles

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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

Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?
  1. 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.
  2. Thin branching tubes carry oxygen from the air to all the parts.
  3. The opening of the spiracles is regulated by sphincters.
  4. Exchange of gases take place at the tracheoles by diffusion.

A. Only (i)

B. (i), (ii) and (iii)

C. (ii), (iii) and (iv)

D. All of these

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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

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

D. epithelial cells

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4

The given figure shows the digestive system of cockroach with few structures marked as A, B, C and D. Identify structures A to D.

A. A-Gizzard, B-Crop, C-Hepatic caecae, D-Malpighian tubules

B. A-Crop, B-Gizzard, C-Hepatic caecae, D-Malpighian tubules

C. A- Crop, B-Gizzard, C-Malpighian tubules, D-Hepatic caecae

D. A- Gizzard, B-Crop, C-Malpighian tubules, D-Hepatic caecae

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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

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

A. Adipose cell

B. Bone marrow

C. Liver

D. Matrix