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 8th sternum, B - Anal cercus, C - 10th tergum, D - Anal style
A - 10th tergum, B - Anal cercus, C - Anal style, D - 8th sternum
A - Anal style, B - Anal cercus, C - 10th tergum, D- 8th sternum
A - Anal cercus, B - 8th sternum, C - 10th tergum, D - Anal style.
Correct Answer :
A. A 8th sternum, B - Anal cercus, C - 10th tergum, D - Anal style
In the given structure of male reproductive system of cockroach, the label marked as A to D are respectively 8th sternum; anal cercus; 10th tergum and anal style.
Anal style is a pair of short, thread-like present in males. In both sexes, the 10th segment bears of pair of jointed filamentous structures called anal cerci.
Related Questions
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.
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
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
Choose the correct sequence of alimentary canal of Cockroach
Gizzard -> Crop ->?Malphigian tubules ->?Hepatic caeca ->?Rectum.
Gizzard -> Hepatic caeca -> Crop -> Rectum -> Malphigian tubules.
Crop -> Gizzard ->?Hepatic caeca ->?Malphigian tubules ->?Rectum.
Crop -> Hepatic caeca ->?Gizzard -> Rectum -> Malphigian tubules.
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
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
Which statement regarding anal cerci and anal style in cockroach is correct?
Anal cerci are absent but anal styles are present in male.
Anal cerci are absent and anal styles are present in female.
Anal styles are absent and anal cerci are present in male.
Anal styles are absent and anal cerci are present in female.
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?
Liver cells
Neurons
Malpighian layer of the skin
Osteocytes
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
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 of the following statement(s) is/are correct about nervous system of cockroach ?
- It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
- There are six ganglia lie in the thorax, and three in the abdomen.
- The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
- Each eye consists of about 5000 hexagonal ommatidia.
Both (i) and (iii)
Only (ii)
Both (i) and (iv)
All of these
Which of the following statement(s) is/are correct regarding excretory system of cockroach ?
- Excretion is performed by malphigian tubules.
- They absorb nitrogenous waste products and convert them into uric acid which is excreted out through hindgut. Hence, this insect called ammonetelic.
- In addition, fat body, nephrocytes and uricose glands also help in excretion.
Only (i)
Both (ii) and (iii)
Both (i) and (iii)
All of these
Which of the following statement is/are correct regarding digestive system of cockroach ?
- Mouth opens into a short tubular pharynx, leading to a narrow tubular passage called oesophagus.
- Gizzard helps in grinding the food particles.
- 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.
- 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.
Only (i)
Both (ii) and (iii)
Both (i) and (iv)
All of these
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
The kind of epithelium which forms the inner walls of blood vessels is
cuboidal epithelium
columnar epithelium
ciliated columnar epithelium
squamous epithelium
Which of the following animals maintain ecological balance?
Frog
Rabbit
Earthworm
Cockroach
Non-ciliated simple columnar epithelium often contains _______, which increase the surface area for secretion and absorption.
flagella
collagen fibres
microvilli
all of these
Male cockroach can be identified from the female by the presence of
long antennae
wingless body
elongated abdomen
anal styles
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
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
Neuroglia are
excitable cells of neural tissue.
supporting and non-excitable cells of neural tissue.
two to three times in volume of neural tissue.
protective and excitable cells of neural tissue.
Which of the following statement(s) is/are correct regarding cockroaches ?
- The body of the cockroach is segmented and divisible into three distinct regions head, thorax and abdomen.
- Blood vascular system is of closed type.
- They are monoecious and both sexes have well developed reproductive organs.
- The development of P. americana is paurometabolus, meaning there is development through nymphal stage.
Both (i) and (ii)
Both (ii) and (iii)
Both (i) and (iv)
All of these
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.
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(s) is/are correct about muscle tissue ?
Each muscle is made of many long, cylindrical fibres arranged in parallel arrays.
Muscle fibres contract (shorten) in response to stimulation, then relax (lengthen) and return to their uncontracted state in a coordinated fashion.
Muscles play an active role in all movements of the body.
All of the above
The chondrocytes of connective tissue are
fibre secreting cells
bone forming cells
cartilage cells
bone eating cells
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?
Frog
Snake
Earthworm
Cockroach
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
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
Which of the following type of muscle tissue is being described on the basis of given statements ?
- These muscle fibres taper at both ends and do not show striations.
- The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
- They are involuntary as their function cannot be directly controlled.
Skeletal muscle
Smooth muscle
Cardiac muscle
All of these