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.
Only (i)
(i), (ii) and (iii)
(ii), (iii) and (iv)
All of these
Correct Answer :
C. (ii), (iii) and (iv)
In cokroach, respiratory system consists of a network of trachea, that open through 10 pairs of small holes called spiracles present on the lateral side of the body.
Related Questions
The frog never drinks water but absorbs it through one of its respiratory organ. Identify the organ.
Skin
Lung
Buccal cavity
None of the above.
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
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
A student was given a sample of tissue. He observes and concludes the following characters.
- The cells are composed of a single layer of tall and slender cells.
- Their nuclei are located at the base.
- Free surface may have microvilli.
- It is found in the lining of stomach and intestine
- They help in secretion and absorption.
Based on the above features identify the epithelium.
Cuboidal epithelium
Columnar Epithelium
Squamous epithelium
Glandular epithelium
The blood of cockroach contains no respiratory pigment. It means that
cockroach does not respire.
respiration is anaerobic.
oxygen goes directly into tissues by diffusion.
oxygen goes directly into tissues by intracellular capillary system.
The kind of epithelium which forms the inner walls of blood vessels is
cuboidal epithelium
columnar epithelium
ciliated columnar epithelium
squamous epithelium
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.
Only (ii) is correct
(ii) and (iii) are correct
(i) and (ii) are correct
Only (iii) is correct
In which one of the following preparations, cell junctions come across most frequently ?
Ligament
Tendon
Cartilage
Ciliated epithelium
The secretions of endocrine glands are released directly
into the skin surface
into the blood stream
into a gland duct
into the brain tissue
Which of the following statement is correct regarding Female reproductive system of earthworm ?
It consists of two large ovaries, lying laterally in the 6th 7th abdominal segments.
Each ovary is formed of a group of five ovarian tubules or ovarioles, containing a chain of developing ova.
A pair of spermatheca is present in the 5th segment which opens into the genital chamber.
None of the above
Three essential components of most neurons are
simple epithelium, extracellular matrix and nerves.
axon, dendrites and cell body.
nerve cells, synapse and neuroglia.
mylein sheeth, node of Ranvier and Schwann cells.
Which of the following statements regarding frog is not correct?
Fertilization is external and takes place in water.
External ear and tympanum can be seen externally.
In females the ureters and oviduct open separately in the cloaca.
Copulatory pad on the first digit of the fore limbs and vocal sac are present in male frog.
The mouth parts of cockroach are
cutting and biting type.
piercing and sucking type.
sucking and rasping type.
sucking and siphoning type.
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.
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.
Which of the following statement is incorrect regarding cuboidal epithelium ?
It is an epithelial tissue.
It is composed of a single layer of cube-like cells.
They are found in the walls of blood vessels and air sacs of lungs.
Secretion and absorption are the main functions of these tissue.
Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
reptilia; annelida
insecta; arthropoda
insecta; annelida
reptilia; arthropoda
Match column-I with column-II and choose the correct option.
| Column-I | Column-II |
|---|---|
| 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 I; B II; C III; D IV; E V
A II; B I; C V; D III; E IV
A II; B I; C III; D V; E IV
A III; B IV; C II; D V; E I
Intercalated discs are the communication junctions between the cells of
cardiac muscles
striped muscles
adipose tissue
nerve and striated muscles
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.
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
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
A student was given a specimen to identify on the basis of the characteristics given below.
- They are metamerically segmented.
- Presence of closed circulatory system.
- They have circular and longitudinal muscles for locomotion.
Identify the specimen.
Frog
Pheretima
Cockroach
Rabbit
When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
connective tissue cells
new smooth muscle cells
new cardiac muscle cells
epithelial cells
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
In all connective tissues, except which of the following, the cells secretes the fibres of collagen or elastin protein ?
Bone
Cartilage
Areolar connective tissue
Fluid connective tissue
Tendons and ligaments are the examples of
areolar connective tissue
adipose tissue
dense regular connective tissue
loose connective tissue
Which of the following animals maintain ecological balance?
Frog
Rabbit
Earthworm
Cockroach
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.
Lateral heart. It is a blood pumping organ.
Calciferous glands. They neutralize the humic acid present in humus.
Nephridia. It regulates the volume and composition of the body fluids.
Blood glands. They produce blood cells and haemoglobin which is dissolved in blood plasma.
Epithelial tissue is distinguished from connective tissue, muscular, or nervous tissue by its
large extracellular matrix.
contractibility.
ability to carry action potentials.
basement membrane.