Structural Organisation in Animals

Which of the following characteristics is incorrect with respect to cockroach?

1. 10th abdominal segment in both sexes, bears a pair of anal cerci
2. A ring of gastric caeca is present at the junction of midgut and hind gut
3. Hypopharynx lies within the cavity enclosed by the mouth parts
4. In females, 7th-9th sterna together form a genital pouch

Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.

1. Adhering junctions and Gap junctions, respectively
2. Gap junctions and Adhering junctions, respectively
3. Tight junctions and Gap junctions, respectively
4. Adhering junctions and Tight junctions respectively

Following are the statements about prostomium of earthworm. Choose the correct answer from the options given below.

1. B and C only
2. A, B and C only
3. A, B and D only
4. A, B, C and D

If the head of cockroach is removed, it may live for few days because

1. the cockroach does not have nervous system.
2. the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3. the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.
4. the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.

Cuboidal epithelium with brush border of microvilli is found in

1. Ducts of salivary gland
2. Proximal convoluted tubule of nephron
3. Eustachian tube
4. Lining of intestine

Goblet cells of alimentary canal are modified from

1. Columnar epithelial cells
2. Compound epithelial cells
3. Squamous epithelial cells
4. Chondrocytes

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:

1. Pharynx Oesophagus Gizzard Ileum Crop Colon Rectum
2. Pharynx Oesophagus Ileum Crop Gizzard Colon Rectum
3. Pharynx Oesophagus Crop Gizzard Ileum Colon Rectum
4. Pharynx Oesophagus Gizzard Crop Ileum Colon Rectum

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in:

1. Eustachian tube and Salivary duct
2. Bronchioles and Fallopian tubes
3. Bile duct and Bronchioles
4. Fallopian tubes and Pancreatic duct

Which of the following features is used to identify a male cockroach from a female cockroach?

1. Forewings with darker tegmina
2. Presence of caudal styles
3. Presence of anal cerci
4. Presence of a boat-shaped sternum on the 9th abdominal segment

Select the correct route for the passage of sperms in male frogs :

1. Testes Vasa efferentia Kidney Seminal vesicle Urinogenital duct Cloaca
2. Testes Vasa efferentia Bidder's canal Ureter Cloaca
3. Testes Vasa efferentia Kidney Bidder's canal Urinogenital duct Cloaca
4. Testes Bidder's canal Kidney Vasa efferentia Urinogenital duct Cloaca

Frog’s heart when taken out of the body continues to beat for some time. Select the best option from the following statements.

1. D only
2. A and B only
3. C only
4. C and D only

Which type of tissue correctly matches with its locations ?

1. Tissue Smooth muscle , Location Wall of intestine
2. Tissue Areolar tissue, Location Tendons
3. Tissue Cuboidal epithelium, Location Lining of stomach
4. Tissue Transitional epithelium, Location Tip of nose

In male cockroaches, sperms are stored in which part of the reproductive system ?

1. Vas deferens
2. Seminal vesicles
3. Testes
4. Mushroom glands

Smooth muscles are

1. involuntary, cylindrical, striated
2. involuntary, fusiform, non-striated
3. voluntary, spindle-shaped, uninucleate
4. voluntary, multinucleate, cylindrical

The function of the gap junction is to -

1. facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
2. separate two cells from each other
3. stop substance from leaking across a tissue
4. performing cementing to keep neighbouring cells together

The terga, sterna and pleura of cockroach body are joined by :

1. Cartilage
2. Cementing glue
3. Arthrodial membrane
4. Muscular tissue

Choose the correctly matched pair :

1. Adipose tissue – Dense connective tissue
2. Areolar tissue – Loose connective tissue
3. Tendon – Specialized connective tissue
4. Cartilage – Loose connective tissue

Choose the correctly matched pair:

1. Inner surface of bronchioles - squamous epithelium
2. Moist surface of buccal cavity - Glandular epithelium
3. Inner lining of salivary ducts - Ciliated epithelium
4. Tubular parts of nephrons - Cuboidal epithelium

What external changes are visible after the last moult of a cockroach nymph ?

1. Both fore wings and hind wings develop
2. Mandibles become harder
3. Labium develops
4. Anal cerci develop

Which one of the following is one of the paths followed by air or O2 during respiration in the adult male Periplaneta americana as it enters the animal body?

1. Spiracle in metathorax, trachea, tracheoles, oxygen diffuses into cells
2. Mouth, bronchial tube, trachea, oxygen enters cells
3. Spiracles in prothorax, tracheoles, trachea, oxygen diffuses into cells.
4. Hypopharynx, mouth, pharynx, trachea, tissues

Select the correct option with respect to Cockroaches :-

1. Nervous system comprises of a dorsal nerve cord and ten pairs of ganglion
2. The fore wings are tegmina which are used in flight
3. Malpighian tubules convert nitrogenous wastes into urea
4. Males bear short anal styles not present in females

Identify the tissue shown in the diagram and match with its characteristics and its location :- [Figure]

1. Smooth muscles, show branching, found in the walls of the heart.
2. Striated muscles, tapering at both-ends, attached with the bones of the ribs
3. Skeletal muscle, shows striations and closely attached with the bones of the limbs
4. Cardiac muscles, unbranched muscles, found in the walls of the heart

Given below is the diagrammatic sketch of a certain type of connective tissue. Identify the parts labeled A, B, C and D and select the right option about them [Figure]

1. A Mast cell, B Collagen fibres, C Fibroblast, D Macrophage
2. A Mast cell, B Macrophage, C Fibroblast, D Collagen fibres
3. A Macrophage, B Fibroblast, C Collagen fibres, D Mast cell
4. A Macrophage, B Collagen fibres, C Fibroblast, D Mast cell

The supportive skeletal structures in the human external ears and in the nose tip are examples of

1. Ligament
2. Areolar tissue
3. Cartilage
4. Bone

The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function ? [Figure]

1. (A) Tissue Columnar epithelium, Location Nephron, Function Secretion and absorption
2. (C) Tissue Collagen fibres, Location Cartilage, Function Attach skeletal muscles to bones
3. (B) Tissue Glandular epithelium, Location Intestine, Function Secretion
4. (D) Tissue Smooth muscle tissue, Location Heart, Function Heart contraction

Pheretima and its close relatives derive nourishment from

1. sugarcane roots
2. decaying fallen leaves and soil organic matter
3. soil insects
4. small pieces of fresh fallen leaves of maize, etc.

Compared to those of humans, the erythrocytes in frog are :

1. Without nucleus but with haemoglobin
2. Very much smaller and fewer
3. Nucleated and with haemoglobin
4. Nucleated and without haemoglobin

Select the correct statement from the ones given below with respect to Periplaneta americana

1. Males bear a pair of short thread like anal styles
2. There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
3. Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives
4. Grinding of food is carried out only by the mouth parts

Consider the following four statements (A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F). Statements:

1. A-T, B-F, C-F, D-T
2. A-T, B-T, C-F, D-F
3. A-F, B-F, C-T, D-T
4. A-F, B-T, C-T, D-F

Ureters act as urinogenital ducts in

1. human males
2. human females
3. both male and female frogs
4. male frogs