Nokea
Which organ in the digestive system absorbs the most water from food?
- A. esophagus
- B. large intestine
- C. small intestine
- D. stomach
Correct Answer: B
Rationale: The large intestine absorbs the most water from food, turning chyme into solid waste.
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The liver contains macrophages that have a special name. What is this name?
- A. Lymphocytes
- B. Coffee cells
- C. Kupffer cells
- D. Liver macrophage
Correct Answer: C
Rationale: Kupffer cells are specialized macrophages in the liver that remove debris and pathogens from the blood. Lymphocytes are white blood cells, and 'coffee cells' is not a term; 'liver macrophage' is less specific than Kupffer cells.
Which of the following is not a source of protein?
- A. broccoli
- B. red meat
- C. beans
- D. rice
Correct Answer: A
Rationale: Broccoli contains some protein but is primarily a source of vitamins and fiber, not a primary protein source like meat or beans.
Which of the following is not a function of saliva?
- A. aids in protein digestion
- B. wets the food
- C. contains amylase
- D. chemical digestion
Correct Answer: A
Rationale: Saliva does not aid in protein digestion; it primarily helps in moistening food, contains amylase for carbohydrate digestion, and facilitates chemical digestion.
The disease caused due to deficiency of nicotinic acid is
- A. Anaemia
- B. Osteomalacia
- C. Xerophthalmia
- D. Pellagra
Correct Answer: D
Rationale: Pellagra is caused by a deficiency of niacin (nicotinic acid), leading to symptoms like dermatitis, diarrhea, and dementia.
Functions of the Tongue papillae include the following except:
- A. The filiform papillae contain nerve endings specialized for touch.
- B. Enables animals in licking layers of solids and semisolids material.
- C. Most Fungiform and all the circumvallate papillae contain taste buds
- D. Von Ebner glands important in salivary secretion
Correct Answer: D
Rationale: Von Ebner's glands (serous glands) are associated with circumvallate papillae and aid in taste perception by secreting fluid, not general salivary secretion.