Question

91. Which two substances must be present to efficiently digest triglycerides? a. bile and lactase b. bile and pepsin c. amylase and pepsin d. bile and lipase e. amylase and bile #97 bridge Lumen of seminiferous tubule Figure 27.1 Using Figure 27.1, match the following: 92. Spermatogonium before mitosis 93. First cells with haploid number of chromosomes 94. Spermatogonium after mitosis 95. Cells ready to undergo spermiogenesis 96. Primary spermatocyte

Answer 1

91. Option d. Bile and Lipase

Explanation: Bile helps in the emulsification of fats making them soluble in water and easy to digest by lipolytic enzymes. Lipases (Lingual lipase, Gastric lipase, Pancreatic lipase, Intestinal lipase) acts on the substrate of trigylcerides and converts into fatty acids and glycerol.

Thus the correct answer is option d.

Lactase is involved in the hydrolysis of lactose to glucose and fructose while Amylase converts polysaccharides into dextrins and maltose (disaccharides). Pepsin is a proteolytic enzyme which acts on proteins inot proteoses, peptones and large polypeptides. Thus all the other optionns are incorrect.

92. Spermatogonium before mitosis: A (Spermatogonia)

93. First cells with haploid number of chromosomes: D. (Secondary Spermatocytes)

94. Spermatogonium after mitosis: B (Daughter cell type B spermatogonium)

95. Cells ready to undergo spermiogenesis: E.

96. Primary Spermatocyte: C

97. Sustenacular cell nucleus