Practice free Structural Organisation in Animals (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following distinguishes male frogs from female frogs externally?
Male frogs can be distinguished by the presence of sound producing vocal sacs and also a copulatory pad on the first digit of the fore limbs which are absent in female frogs.
Which of the following organs in female frogs opens separately into the cloaca?
A pair of oviduct arising from the ovaries opens into the cloaca separately. In females the ureters and oviduct open seperately in the cloaca.
The process by which a tadpole transforms into an adult frog is known as:
Tadpole undergoes metamorphosis to form the adult.
Where are the testes located in a male frog?
Male reproductive organs consist of a pair of yellowish ovoid testes, which are found adhered to the upper part of kidneys by a double fold of peritoneum called mesorchium.
Which of the following is NOT part of the female reproductive organs of a frog?
The female reproductive organs include a pair of ovaries (Figure 7.4). A pair of oviduct arising from the ovaries opens into the cloaca separately. Vasa efferentia are part of the male reproductive system.
Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by:
The ileo-caecal valve prevents backflow from the caecum into the ileum.
Statement I: Ligaments are dense irregular tissue. Statement II: Cartilage is dense regular tissue.
Ligaments are dense REGULAR; cartilage is a specialised connective tissue, not "dense regular".
Match List I with List II:
| List I (Cells) | List II (Secretion) |
|---|---|
| A. Peptic cells | I. Mucus |
| B. Goblet cells | II. Bile juice |
| C. Oxyntic cells | III. Proenzyme pepsinogen |
| D. Hepatic cells | IV. HCl and intrinsic factor for absorption of vitamin B₁₂ |
Peptic → pepsinogen; Goblet → mucus; Oxyntic/parietal → HCl + IF; Hepatic → bile.
Match List I with List II:
| List I | List II |
|---|---|
| A. Mast cells | I. Ciliated epithelium |
| B. Inner surface of bronchiole | II. Areolar connective tissue |
| C. Blood | III. Cuboidal epithelium |
| D. Tubular parts of nephron | IV. specialised connective tissue |
Mast cells → areolar CT; bronchiole → ciliated epi; blood → specialised CT; nephron tubule → cuboidal epi.
Match List I with List II:
| List I | List II |
|---|---|
| A. Unicellular glandular epithelium | I. Salivary glands |
| B. Compound epithelium | II. Pancreas |
| C. Multicellular glandular epithelium | III. Goblet cells of alimentary canal |
| D. Endocrine glandular epithelium | IV. Moist surface of buccal cavity |
Choose the correct answer from the options given below:
Goblet cells (unicellular gland), buccal cavity (compound epithelium), salivary glands (multicellular exocrine), pancreas (endocrine).
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