General
✓✗The ventricle of frog opens into a sac-like structure on the ventral side of the heart called the
- atrium
- sinus venosus
- conus arteriosus
- aorta
General
✓✗Which of the following statements is incorrect?
- Gap junctions help cells to communicate with each other.
- Exocrine glands release their products through ducts.
- The heart has all four types of tissues.
- Skeletal muscles are found in the walls of the intestine.
General
✓✗Cardiac muscle cells are joined to one another by
- intercalated discs
- ligaments
- Casparian strips
- tendons
General
✓✗During an injury, the nasal septum gets damaged. For its recovery, which cartilage is preferred?
- Calcified cartilage
- Hyaline cartilage
- Elastic cartilage
- Fibrous cartilage
General
✓✗The salivary duct of cockroach opens at the base of the
- hypopharynx
- mandibles
- labrum
- gizzard
General
✓✗Adult frogs are
- ureotelic
- uricotelic
- aminotelic
- ammonotelic
General
✓✗Which cells of areolar tissue produce and secrete fibres?
- Fibroblasts
- Adipocytes
- Mast cells
- Macrophages
General
✓✗Frogs respire on land and in water by
- gills only
- lungs only
- the same method
- two different methods
General
✓✗Which of the following are functions of epithelial tissue?
A. Covering of body surfaces
B. Lining of body cavities, ducts and tubes
C. Secretion
D. Absorption
E. Contraction
Choose the correct answer.
A. Covering of body surfaces
B. Lining of body cavities, ducts and tubes
C. Secretion
D. Absorption
E. Contraction
Choose the correct answer.
- A, B, C and D only
- A, B and E only
- C, D and E only
- A, B, C, D and E
General
✓✗The compound eyes of cockroach give
- colour vision only in bright daylight
- mosaic vision with more sensitivity but less resolution
- no image, as they only sense heat
- a single sharp image with high resolution
General
✓✗The number of chambers in the heart of cockroach is
- 3
- 4
- 13
- 23
General
✓✗Each kidney of frog is composed of several structural and functional units called
- uriniferous tubules or nephrons
- alveoli
- Malpighian tubules
- ommatidia
General
✓✗A tendon is made up of
- modified white fibrous tissue
- areolar tissue
- adipose tissue
- yellow fibrous connective tissue
General
✓✗Microvilli on the free surface of epithelial cells increase the
- surface area for absorption
- speed of nerve impulses
- rate of cell division
- strength of the tissue
General
✓✗Each Malpighian tubule of cockroach is lined by
- glandular and ciliated cells
- squamous cells
- cuticle
- muscle cells