MCQs Biology-29 Posted on December 10, 2025December 10, 2025Author agropublishers 0 Table of Contents Toggle MCQs Biology-29Multiple Choice QuestionsMCQs Biology-29 MCQs Biology-29 Multiple Choice Questions 1. Nitrogen is an essential component of which of the following biomolecules? Proteins Carbonates Carbohydrates Lipids 2. The lower esophageal sphincter is a ring of muscle at the junction of the esophagus and the stomach, which prevents ————— Entry of air into the esophagus Backflow of gastric contents Absorption of nutrients Passage of food into the trachea 3. In most fungi and higher plants, somatic cells lack which organelle? Centriole Ribosome Mitochondrion Golgi body 4. Which of the following treatments is commonly administered to patients diagnosed with cancer? Antibiotic therapy All of these Radiotherapy Gene therapy 5. Glycogen is a ———— Disaccharide Monosaccharide Polysaccharide Lipid 6. Which enzyme works optimally at an alkaline pH (around 8)? Trypsin Amylase Invertase Pepsin 7. _____________ is the specific enzyme that catalyzes the hydrolysis (breakdown) of the disaccharide sucrose into its constituent monosaccharides: glucose and fructose Invertase Trypsin Lipase Urease 8. Chinese population has a higher fertility rate than the Indian people True False 9. The primary mechanism by which cells synthesize ATP during oxidative phosphorylation and photophosphorylation is _____________? Chemosynthesis Phosphorylation Chemiosmosis Photosynthesis 10. Which of the following enzymes is present in human saliva? Lipase Invertase Ptyalin Trypsin Loading … Question 1 of 10 MCQs Biology-29
