Prehension, rumination, enzymatic digestion in monogastric and fermentative digestion

Multiple Choice Questions (MCQs)

1. What is the primary function of prehension in animals?
   • A) Digestion
   • B) Elimination of waste
   • C) Grasping food
   • D) Absorption of nutrients
     Answer: C) Grasping food
2. What is the process of bringing food back to the mouth for re-chewing called?
   • A) Defecation
   • B) Vomition
   • C) Rumination
   • D) Prehension
     Answer: C) Rumination
3. Which of the following is NOT a component of gastric juice?
   • A) Hydrochloric acid
   • B) Amylase
   • C) Pepsinogen
   • D) Mucus
     Answer: B) Amylase
4. Bile is produced in the:
   • A) Pancreas
   • B) Gallbladder
   • C) Liver
   • D) Stomach
     Answer: C) Liver
5. Which hormone stimulates hunger?
   • A) Leptin
   • B) Ghrelin
   • C) Insulin
   • D) CCK
     Answer: B) Ghrelin
6. The act of expelling the contents of the stomach is known as:
   • A) Defecation
   • B) Vomition
   • C) Rumination
   • D) Prehension
     Answer: B) Vomition
7. Which part of the digestive system is primarily responsible for nutrient absorption?
   • A) Stomach
   • B) Rumen
   • C) Small intestine
   • D) Large intestine
     Answer: C) Small intestine
8. Which of the following processes occurs in the rumen?
   • A) Enzymatic digestion
   • B) Fermentative digestion
   • C) Membranous digestion
   • D) Absorption
     Answer: B) Fermentative digestion
9. What type of digestion occurs in the lumen of the intestine?
   • A) Membranous digestion
   • B) Luminous digestion
   • C) Microbial digestion
   • D) Enzymatic digestion
     Answer: B) Luminous digestion
10. Which of the following is true regarding the permeability of the intestine?
    • A) It is impermeable to all substances.
    • B) It allows selective absorption of nutrients.
    • C) It only absorbs water.
    • D) It is not regulated by hormones.
      Answer: B) It allows selective absorption of nutrients.

True/False Questions

1. Prehension is the process of eliminating waste from the body.
   Answer: False
2. Rumination involves re-chewing food to aid digestion.
   Answer: True
3. Bile is secreted by the pancreas.
   Answer: False
4. Ghrelin is a hormone that stimulates appetite.
   Answer: True
5. Defecation is the act of expelling food from the stomach.
   Answer: False
6. The small intestine is primarily responsible for nutrient absorption.
   Answer: True
7. Fermentative digestion occurs primarily in the stomach of monogastric animals.
   Answer: False
8. Luminous digestion refers to the breakdown of food in the lumen of the digestive tract.
   Answer: True
9. The permeability of the intestine is regulated by hormonal signals.
   Answer: True
10. Microbial digestion occurs only in the small intestine.
    Answer: False

Fill in the Blanks

1. The act of grasping food is known as __________.
   Answer: prehension
2. __________ is the process of bringing food back to the mouth for re-chewing.
   Answer: Rumination
3. Gastric juices in the stomach contain __________, which aids in protein digestion.
   Answer: pepsinogen
4. Bile is produced in the __________.
   Answer: liver
5. The hormone __________ stimulates hunger.
   Answer: ghrelin
6. The elimination of waste from the body is called __________.
   Answer: defecation
7. The __________ is primarily responsible for nutrient absorption in the digestive system.
   Answer: small intestine
8. Fermentative digestion occurs in the __________ of ruminants.
   Answer: rumen
9. __________ digestion refers to the breakdown of food by enzymes in the lumen of the digestive tract.
   Answer: Luminous
10. The permeability of the intestine allows for selective __________ of nutrients.
    Answer: absorption