If the head of cockroach is cut off, it will still alive for as long as one week. It is because of
the body which is covered with a hard chitinous exoskeleton.
head which holds a bit of nervous system.
head which is of no use.
food capturing appratus which is found elsewhere.
Correct Answer :
C. head which is of no use.
If the head of cockroach is cut off, it will still alive for as long as one week, because the head holds a bit of a nervous system while the rest is situated along te ventral part of the body.
Related Questions
In cockroach, the testes are present in
3, 4, 5 abdominal segments
4, 5, 6 abdominal segments
5, 6, 7 abdominal segments
6, 7, 8 abdominal segments
Which of the following vertebrate tissues would be an excellent source of collagen?
Liver
Nerve
Muscle
Tendon
Muscle tissue cells are contractile, which means they
are responsible for the production and secretion of enzymes.
are specialized in contraction and relaxation.
help in the movement of involuntary organs only.
all of the above
Match column-I (type of epithelium) with column-II (Description) and choose the correct option.
| Column-I | Column-II |
|---|---|
| (Types of epithelium) | (Description) |
| A. Squamous | I. It is composed of a epithelium single-layer of cube-like cells |
| B. Cuboidal | II. Having cilia on their free epithelium surface |
| C. Columnar | III. It is composed of a single epithelium layer of tall and slender cells |
| D. Ciliated | IV. It is made up of a single thin epithelium layer of flattened cells with irregular boundaries |
A IV; B I; C III; D II
A I; B IV; C III; D II
A IV; B I; C II; D III
A IV; B III; C I; D II
Phallic organs in cockroach are related to
male excretory system.
male reproductive system.
female excretory system.
female reproductive system.
General function of gland is to
protect the body.
control the function of epithelial tissues.
produce and secrete specialized compounds to control and maintain different body functions.
help to maintain blood pressure and nerve actions.
Which of the following is involved in the production of new blood cells ?
Adipose cell
Bone marrow
Liver
Matrix
Find the incorrectly matched pair.
Unicellular glandular cells - Goblet cell
Saliva - Exocrine secretion
Fusiform fibres - Smooth muscle
Cartilage - Areolar tissue
A student was given a sample of two tissues. He observes the tissues under the microscope and draws their figures (1 and 2) as shown below.
Identify the tissues (1 and 2).
1: Columnar cells bearing cilia; 2: Unicellular glandular epithelium
1: Cuboidal cells bearing cilia; 2: Multicellular glandular epithelium
1: Compound cells bearing cilia; 2: Unicellular glandular epithelium
1: Columnar cells bearing cilia; 2: Multicellular glandular epithelium
The figure given below shows the head region of cockroach. Identify A to F.
A- Compound eye, B-Ocellus, C-Maxilla, D-Mandible, E-Labrum, F-Labium
A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labrum, F-Labium
A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labium, F-Labrum
A- Ocellus, B-Compound eye, C-Maxilla, D-Mandible, E-Labrum, F-Labium
Which of the following statement(s) is/are correct regarding compound epithelium ?
It is made of more than one layer of cells and thus has a limited role in secretion and absorption.
Their main function is to provide protection against chemical and mechanical stresses.
They cover the dry surface of the skin, moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and pancreatic ducts.
All of the above
Tendons and ligaments are the examples of
areolar connective tissue
adipose tissue
dense regular connective tissue
loose connective tissue
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.
Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1
Statement -1 and statement-2 are true and statement-2 is not a correct explanation for statement -1
Statement - 1 is true and statement- 2 is false
Both the statements are false.
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-Gizzard, B-Crop, C-Hepatic caecae, D-Malpighian tubules
A-Crop, B-Gizzard, C-Hepatic caecae, D-Malpighian tubules
A- Crop, B-Gizzard, C-Malpighian tubules, D-Hepatic caecae
A- Gizzard, B-Crop, C-Malpighian tubules, D-Hepatic caecae
The supportive skeletal structures in the human external ears and in the nose tip are examples of
ligament
areolar tissue
bone
cartilage
Compound squamous epithelium is found in
stomach
intestine
trachea
pharynx
Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
reptilia; annelida
insecta; arthropoda
insecta; annelida
reptilia; arthropoda
Figure given below shows reproductive system of female cockroach. The correct labellings indicated by alphabets (A, B & C) are respectively
A-Spermatheca, B-Collaterial glands, C-Gonapophyses
A-Phallic gland, B-Collaterial glands, C-Gonapophyses
A-Spermatheca, B-Seminal vesicle, C-Gonapophyses
A-Spermatheca, B-Collateral glands, C-Tegmina
Male cockroach can be identified from the female by the presence of
long antennae
wingless body
elongated abdomen
anal styles
Intercalated discs are the communication junctions between the cells of
cardiac muscles
striped muscles
adipose tissue
nerve and striated muscles
The major functions of loose connective tissue include
occupying spaces between organs and supporting epithelia.
supporting and surrounding blood vessels and nerves
cushioning organs, storing lipids and facilitating diffusion.
All of the above
What external changes are visible after the last moult of a cockroach nymph?
Development of anal cerci.
Development of both forewings and hind wings.
Development labium.
Mandibles become harder.
Which of the following animals maintain ecological balance?
Frog
Rabbit
Earthworm
Cockroach
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.
Statement 1 and 2 are true and statement 2 is the correct explanation of statement 1.
Statement 1 and 2 are true and statement 2 is not the correct explanation of statement 1.
Both statements 1 and 2 are false.
Statement 1 is true and statement 2 is false.
The only type of cell seen in a tendon is
muscle fibres
reticular cells
collagenous cells
fibroblasts
Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?
Vacuoles and Fibres
Flagellum and Medullary sheath
Nucleus and Mitochondria
Cell body and Dendrites
Cartilage tissues are likely to be slow in healing following an injury because
cartilage cells cannot reproduce.
they lack direct blood supplies.
the intercellular material is missing.
cartilage cells are surrounded by fluids.
Which of the following statements is not correct regarding neural tissue ?
It exerts the greatest control over the bodys responsiveness to changing conditions.
Chondrocytes, the unit of neural system are excitable cells.
Neuroglial cells protect and support neurons.
When a neuron is suitably stimulated, an electrical disturbance is generated.
The given figure shows open circulatory system of cockroach with structure marked as A, B and C. Which structure is a 13 pair of wing shaped involuntary muscles and mantain blood circulation?
A
B
C
Both A nad B
What are the three basic components of connective tissues?
Ground substance, cells and basement membrane
Cartilage, intercellular matrix and serum
Cells, protein fibers and ground substance
Collagen, elastin and reticular fibers