Quiz on Structural Organisation in Animals
1. The role of the gap junction is to ______.
a) separate two cells from each other
b) Prevent substances from leaking across a tissue
c) Carry out cementing to keep adjacent cells together
d) Enable communication between adjoining cells by connecting the cytoplasm for quick ion transfer, small molecules and some large molecules
d) Enable communication between adjoining cells by connecting the cytoplasm for quick ion transfer, small molecules and some large molecules
2. In humans, bipolar neurons are found in ______.
a) Spinal cord
b) Brain
c) Olfactory epithelium
d) Embryonic phases
c) Olfactory epithelium
3.In the bodies of complex animals, the most widely distributed and abundant tissue is ______.
a) Neural
b) Muscular
c) Connective
d) Epithelium
(c) Connective
4.This statement about epithelial tissue is incorrect.
a) epithelial cells rest on a cellular basement membrane splitting it from underlying connective tissues
b) covers the external body surface and the internal surface of some organs
c) adjacent cells are held by cell junctions with very little extracellular material
d) No blood vessels that supply nutrients to the epithelial cells
(a) epithelial cells rest on a cellular basement membrane splitting it from underlying connective tissues
5. In comparison with humans, the erythrocytes in frogs are ______.
a) nucleated along with the presence of haemoglobin
b) no nucleus but with haemoglobin
c) few and very much small
d) nucleated and without haemoglobin
(a) nucleated along with the presence of haemoglobin
6. Sperms are stored in which part of the reproductive system in male cockroaches ?
a) Mushroom glands
b) Seminal vesicles
c) Testes
d) Vas deferens
(b) Seminal vesicles
7. ______ structure has dense irregular connective tissue.
a) Cartilage
b) Ligaments
c) Tendons
d) Skin
(d) Skin
8. The large amoeboid cells found in areolar tissue and are also part of our innate immune system are known as ______.
a) Mast cells
b) Macrophages
c) Adipocytes
d) Fibroblasts
(b) Macrophages
9. Which of the following about Periplaneta americana is incorrect ?
a) Mosaic vision
b) Excretion by structures – malphigian tubules
c) Paurometabolous development
d) Hemolymph delivers oxygen to tissues
(d) Hemolymph delivers oxygen to tissues
10. What are the glands referred to as when secretary granules leave cells by exocytosis with no loss of other cellular material ?
a) Merocrine
b) Holocrine
c) Autocrine
d) Apocrine
(a) Merocrine
Quiz Over