Home
Current Affairs January 2024

What is the correct answer?

4

Figure given below shows reproductive system of female cockroach. The correct labellings indicated by alphabets (A, B & C) are respectively

A. A-Spermatheca, B-Collaterial glands, C-Gonapophyses

B. A-Phallic gland, B-Collaterial glands, C-Gonapophyses

C. A-Spermatheca, B-Seminal vesicle, C-Gonapophyses

D. A-Spermatheca, B-Collateral glands, C-Tegmina

Correct Answer :

A. A-Spermatheca, B-Collaterial glands, C-Gonapophyses


A - Spermatheca; B - Collaterial gland; C - Gonapophyses

Related Questions

What is the correct answer?

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.

What is the correct answer?

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

What is the correct answer?

4

Which of the following statement is/are correct regarding digestive system of cockroach ?
  1. Mouth opens into a short tubular pharynx, leading to a narrow tubular passage called oesophagus.
  2. Gizzard helps in grinding the food particles.
  3. A ring of 6-8 blind tubules called hepatic or gastric caecae is present at the junction of foregut and midgut, which secrete digestive juice.
  4. At the junction of midgut and hindgut is present another ring of 100-150 yellow coloured thin filamentous malphigian tubules which help in removal of excretory products from haemolymph.

A. Only (i)

B. Both (ii) and (iii)

C. Both (i) and (iv)

D. All of these

What is the correct answer?

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

What is the correct answer?

4

Which of the following animals maintain ecological balance?

A. Frog

B. Rabbit

C. Earthworm

D. Cockroach

What is the correct answer?

4

The chondrocytes of connective tissue are

A. fibre secreting cells

B. bone forming cells

C. cartilage cells

D. bone eating cells

What is the correct answer?

4

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

A. Adipose cell

B. Bone marrow

C. Liver

D. Matrix

What is the correct answer?

4

The diagram given below represents the reproductive organ of male cockroach. Choose the correct labelling of the part of marked as A, B, C and D.

A. A 8th sternum, B - Anal cercus, C - 10th tergum, D - Anal style

B. A - 10th tergum, B - Anal cercus, C - Anal style, D - 8th sternum

C. A - Anal style, B - Anal cercus, C - 10th tergum, D- 8th sternum

D. A - Anal cercus, B - 8th sternum, C - 10th tergum, D - Anal style.

What is the correct answer?

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.

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

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.

What is the correct answer?

4

Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?

A. Vacuoles and Fibres

B. Flagellum and Medullary sheath

C. Nucleus and Mitochondria

D. Cell body and Dendrites

What is the correct answer?

4

Read the following statements and answer the question.
  1. It is made of a single thin layer of flattened cells with irregular boundaries.
  2. They are found in the walls of blood vessels and air sacs of lungs.
  3. They are involved in functions like forming a diffusion boundary.

Which of the following characteristics of tissue is being described by the above statements ?

A. Squamous epithelium

B. Columnar epithelium

C. Ciliated epithelium

D. Compound epithelium

What is the correct answer?

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

What is the correct answer?

4

The mouth parts of cockroach are

A. cutting and biting type.

B. piercing and sucking type.

C. sucking and rasping type.

D. sucking and siphoning type.

What is the correct answer?

4

Gizzard (proventriculus) in cockroach lies between

A. oesophagus and stomach

B. crop and mesenteron

C. mesenteron and ileum

D. oesophagus and crop

What is the correct answer?

4

Lack of blood supply and presence of the noncellular basement membrane are the characteristics of the

A. muscular tissue

B. fluid connective tissue

C. epithelial tissue

D. nervous tissue

What is the correct answer?

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

What is the correct answer?

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.

What is the correct answer?

4

Tendons and ligaments are the examples of

A. areolar connective tissue

B. adipose tissue

C. dense regular connective tissue

D. loose connective tissue

What is the correct answer?

4

Mast cells are associated with

A. exocrine glands

B. endocrine glands

C. areolar connective tissue

D. neural tissue

What is the correct answer?

4

Male cockroach can be identified from the female by the presence of

A. long antennae

B. wingless body

C. elongated abdomen

D. anal styles

What is the correct answer?

4

Smooth muscles are______.

A. voluntary, branched, uninucleate

B. voluntary, multinucleate, cylindrical

C. involuntary, cylindrical, multinucleate

D. involuntary, spindle shaped, uninucleated, tapering

What is the correct answer?

4

The only type of cell seen in a tendon is

A. muscle fibres

B. reticular cells

C. collagenous cells

D. fibroblasts

What is the correct answer?

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

What is the correct answer?

4

Which of the following type of tissue is being described by the given statements ?
  1. They are named because of their special function of linking and supporting other tissues/organs of the body.
  2. They include cartilage, bone, adipose and blood.
  3. They provide strength, elasticity and flexibility to the tissue.
  4. They also secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix.

A. Epithelial tissue

B. Connective tissue

C. Muscle tissue

D. Neural tissue

What is the correct answer?

4

The intercellular material of the given figure is solid and resists compression. Identify the figure and the label marked as A & B.

A. Fig - Cartilage, A - Collagen, B - Collagen

B. Fig - Cartilage, A - Microtubule, B - Collagen fibres

C. Fig - Bone, A - Chondrocyte, B - Chondroclast

D. Fig - Bone, A - Chondroclast, B - Osteoblast

What is the correct answer?

4

Which of the following vertebrate tissues would be an excellent source of collagen?

A. Liver

B. Nerve

C. Muscle

D. Tendon

What is the correct answer?

4

Three essential components of most neurons are

A. simple epithelium, extracellular matrix and nerves.

B. axon, dendrites and cell body.

C. nerve cells, synapse and neuroglia.

D. mylein sheeth, node of Ranvier and Schwann cells.