Related Questions
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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.
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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?
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Which of the following types of connective tissue is mismatched with its matrix ?
A. Areolar Loosely packed matrix of protein fibres
B. Bone Mineralized matrix
C. Cartilage Highly vascular matrix
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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?
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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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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
In cockroach head can move in all directions due to
B. fusion of all 6 segments of head.
D. head is small and light weight.
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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.
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Intercalated discs are the communication junctions between the cells of
D. nerve and striated muscles
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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.
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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.
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Read the following statements and answer the question.
- It is made of a single thin layer of flattened cells with irregular boundaries.
- They are found in the walls of blood vessels and air sacs of lungs.
- They are involved in functions like forming a diffusion boundary.
Which of the following characteristics of tissue is being described by the above statements ?
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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.
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4
In cockroach, the testes are present in
A. 3, 4, 5 abdominal segments
B. 4, 5, 6 abdominal segments
C. 5, 6, 7 abdominal segments
D. 6, 7, 8 abdominal segments
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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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Which of the following type of tissue is being described by the given statements ?
- They are named because of their special function of linking and supporting other tissues/organs of the body.
- They include cartilage, bone, adipose and blood.
- They provide strength, elasticity and flexibility to the tissue.
- They also secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix.
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Phallic organs in cockroach are related to
A. male excretory system.
B. male reproductive system.
C. female excretory system.
D. female reproductive system.
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Find the incorrectly matched pair.
A. Unicellular glandular cells - Goblet cell
B. Saliva - Exocrine secretion
C. Fusiform fibres - Smooth muscle
D. Cartilage - Areolar tissue
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4
Read the following statements and answer the question.
- They have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
- They support and protect softer tissues and organs.
- Osteocytes are present in the spaces called lacunae.
- They also interact with skeletal muscles attached to them to bring about movements.
Which of the following type of tissue is being described by above statements ?
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Which of the following vertebrate tissues would be an excellent source of collagen?
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Compound squamous epithelium is found in
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The following figures A, B and C are types of muscle tissue. Identify A, B and C.
A. A Smooth muscle, B Cardiac muscle, C Skeletal muscle
B. A Skeletal muscle, B Smooth muscle, C Cardiac muscle
C. A Cardiac muscle, B Smooth muscle, C Skeletal muscle
D. A Smooth muscle, B Skeletal muscle , C Cardiac muscle
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4
The shape of a persons ear is due to mainly to
A. dense regular connective tissue
B. dense irregular connective tissue
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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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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.
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The blood of cockroach contains no respiratory pigment. It means that
A. cockroach does not respire.
B. respiration is anaerobic.
C. oxygen goes directly into tissues by diffusion.
D. oxygen goes directly into tissues by intracellular capillary system.
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If the head of cockroach is cut off, it will still alive for as long as one week. It is because of
A. the body which is covered with a hard chitinous exoskeleton.
B. head which holds a bit of nervous system.
C. head which is of no use.
D. food capturing appratus which is found elsewhere.
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Which statement regarding anal cerci and anal style in cockroach is correct?
A. Anal cerci are absent but anal styles are present in male.
B. Anal cerci are absent and anal styles are present in female.
C. Anal styles are absent and anal cerci are present in male.
D. Anal styles are absent and anal cerci are present in female.
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In all connective tissues, except which of the following, the cells secretes the fibres of collagen or elastin protein ?
C. Areolar connective tissue
D. Fluid connective tissue
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Match the types of connective tissue given in column-I with their examples given column-II and choose the correct option.
Column-I | Column-II |
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(Types of connective) | (Examples) |
A. Loose connective | I. Tendons and ligaments tissue |
B. Dense regular | II. Skin tissue |
C. Dense irregular | III. Cartilage, bones, blood tissue |
D. Specialized | IV. Fibroblasts, macrophages connective tissue and mast cells |
A. A I; B IV; C II; D III
B. A I; B IV; C III; D II
C. A IV; B I; C II; D III
D. A IV; B II; C I; D III