Introducing Biology
Cuboidal epithelium with brush border of microvilli is found in
Read the statements A, B, and C and choose the correct set in option. i. Bones have a hard and pliable matrix. ii. In all connective tissue, except blood the cells secrete fibres. iii. In glandular epithelium the modified cells are either columnar or cuboidal.
Correct option: (B)
Solution:
Statement I
Bones have a hard and non-pliable ground substance rich in 'calcium salts' and 'collagen fibres' which give bone its strength.
Statement II
Cells of connective tissue except blood secrete fibres of structural proteins called elastin.
Statement III
Simple cuboidal epithelium is found in glandular tissue and the kidney tubules. Simple columnar epithelium lines the stomach and intestines.
Hence, the correct answer is option B.
Cuboidal epithelium with brush border of microvilli is found in
Which one of the following pairs of structure is correctly matched with their correct description?
Achondroplasia is a disease related with the defect in the formation of
What are the following and where do you find them in animal body. (a) Chondrocytes (b) Axons (c) Ciliated epithelium
Fill in the blanks: (a) Humans reproduce .............. (asexually/sexually). (b) Humans are ............ (oviparous, viviparous, ovoviviparous). (c) Fertilisation is ............. in humans (external/internal) (d) Male and female gametes are ............. (diploid/haploid). (e) Zygote is ............. (diploid/haploid). (f) The process of release of ovum from a mature follicle is known as .............. (g) Ovulation is induced by a hormone called ............. (h) The fusion of male and female gametes is called .............. (i) Fertilisation takes place in .............. (j) Zygote divides to form ............. which is implanted in uterus. (k) The structure which provides the vascular connection between fetus and uterus is called ............
Cartilage is formed by _______________.
Select the correct option: Match column I with column II and select the correct option from the codes given below: Column I Column II (A) Hyaline cartilage (i) Pectoral girdle of frog (B) Fibrous cartilage (ii) Long bones, sternum, ribs (C) Elastic cartilage (iii) Public symphysis (D) Calcified cartilage (iv) Eustachian tube, epiglottis
Consider the following statements (i)- (iii), each with one or two blanks. (i) Bones have a hard and non-pliable ground substance rich in _____ (1) and _____ (2) which give bone its strength, (ii) Some of the columnar or cuboidal cells get specialised for secretion and are called ______ (3) epithelium (iii) ______ (4) junctions help to stop substances from leaking across a tissue. Which one of the following option, gives the correct fill ups for the respective blanks from (1) to (4) in the statements?
Mammalian bone differs from cartilage in the presence of _______________.
Which of the following is a wrongly matched pair?