Select the mismatched:
The mismatched pair is 'Fats→ Starch' because starch is a carbohydrate, not a type of fat.
Deficiency of vitamin-K causes:
Deficiency of vitamin-K can lead to anemia due to its role in blood clotting.
Period of rapid growth and development called:
Adolescence is the period of rapid growth and development.
Deficiency of dietary protein, causes an imbalance in the gastrointestinal system:
Kwashiorkor is caused by a deficiency of dietary protein.
An animal that migrates great distances would obtain the greatest benefit from storing its energy as:
Fats provide the highest energy storage benefit for long migrations.
Which of the following vitamins is correctly associated with its use?
Vitamin A is correctly associated with being incorporated into the visual pigment of the eye.
Which of the following statements describes pepsin?
Pepsin begins the hydrolysis of proteins in the stomach.
Which of the following is true of bile salts?
Bile salts emulsify fats in the duodenum.
In the human digestive system, the trachea and esophagus both connect to the:
In the human digestive system, the trachea and esophagus both connect to the pharynx.
All are sources of calcium except:
Red meat is not a significant source of calcium.
Iron deficiency is linked to:
Iron deficiency is linked to decreased cognitive abilities and weakened immunity.
The rhythmic wave-like muscle contractions in the digestive tract are called:
The rhythmic wave-like muscle contractions in the digestive tract are called peristalsis.
Which liquid secreted by the pancreas aids digestion with enzymes?
Pancreatic juice is the liquid secreted by the pancreas that aids digestion with enzymes.
Organisms feeding on dead and decaying matter are termed:
Organisms feeding on dead and decaying matter are termed saprotrophs.
Nutrients required in the highest amounts are called:
Nutrients required in the highest amounts are called macronutrients.
Excessive fertilizer solubility harms ecosystems by causing:
Excessive fertilizer solubility harms ecosystems by causing eutrophication.
How many calories does 1 gram of fat provide?
1 gram of fat provides 9 calories.
What is the term for the process by which organisms obtain and use nutrients to maintain life?
The term for the process by which organisms obtain and use nutrients to maintain life is nutrition.
Autotrophic nutrition is found in:
Autotrophic nutrition is found in plants and some bacteria.
Heterotrophic nutrition is used by:
Heterotrophic nutrition is used by animals and fungi.
Organisms that consume both plants and animals are called:
Organisms that consume both plants and animals are called consumers.
Which is NOT a mode of heterotrophic nutrition?
Photosynthetic is not a mode of heterotrophic nutrition.
In Amoeba, ingestion occurs through:
In Amoeba, ingestion occurs through the cell surface.
Kwashiorkor results from a deficiency in:
Kwashiorkor results from a deficiency in proteins.
Goiter is linked to a deficiency of:
Goiter is linked to a deficiency of iodine.
The breakdown of complex food into simpler forms is termed:
The breakdown of complex food into simpler forms is termed digestion.
What is the primary mode of nutrition in green plants?
The primary mode of nutrition in green plants is autotrophic.
Which process directly enables autotrophs to synthesize food?
Photosynthesis directly enables autotrophs to synthesize food.
Which organism is an example of a parasite?
Cuscuta is an example of a parasite.
Saprotrophic nutrition is characterized by:
Saprotrophic nutrition is characterized by deriving nutrients from dead organic matter.
Holozoic nutrition is most commonly observed in:
Holozoic nutrition is most commonly observed in animals.
Nitrogen deficiency in plants typically causes:
Nitrogen deficiency in plants typically causes stunted growth and pale foliage.
Magnesium is vital in plants because it:
Magnesium is vital in plants because it forms part of chlorophyll.
Excessive use of chemical fertilizers can lead to:
Excessive use of chemical fertilizers can lead to eutrophication in water bodies.
Fat-soluble vitamins include:
Fat-soluble vitamins include A, D, E, and K.
Deficiency of Vitamin C causes:
Deficiency of Vitamin C causes scurvy.
Calcium is essential for:
Calcium is essential for strong bones and teeth.
Iron deficiency in humans leads to:
Iron deficiency in humans leads to anemia.
Water’s primary role in the body is to:
Water’s primary role in the body is to act as a medium for metabolic reactions.
Dietary fiber helps prevent:
Dietary fiber helps prevent constipation.
Eutrophication is caused by excess:
Eutrophication is caused by excess nitrogen and phosphorus.
Which nutrient pair is crucial for developing strong bones in adulthood?
Calcium and Vitamin D are crucial for developing strong bones in adulthood.
Malnutrition can result from:
Malnutrition can result from insufficient food intake, excess nutrient intake, and poorly balanced diets.
Chronic malnutrition is characterized by:
Chronic malnutrition is characterized by delayed growth in children.
A key symptom distinguishing kwashiorkor from marasmus is:
A key symptom distinguishing kwashiorkor from marasmus is edema.
Overconsumption of which vitamin can lead to calcium deposits in tissues?
Overconsumption of Vitamin D can lead to calcium deposits in tissues.
Which condition is a direct consequence of overnutrition?
Obesity is a direct consequence of overnutrition.
What is the primary function of the digestive system?
The primary function of the digestive system is to break down food into nutrients.
Which process moves food through the esophagus via muscle contractions?
Peristalsis is the process that moves food through the esophagus via muscle contractions.
Where does starch digestion begin?
Starch digestion begins in the mouth.
Which enzyme in saliva initiates starch breakdown?
Salivary amylase is the enzyme in saliva that initiates starch breakdown.
What prevents food from entering the trachea during swallowing?
The epiglottis prevents food from entering the trachea during swallowing.
What is the semi-liquid food mixture in the stomach called?
The semi-liquid food mixture in the stomach is called chyme.
Which part of the small intestine receives chyme first?
The duodenum is the part of the small intestine that receives chyme first.
What is bile’s primary role in digestion?
Bile’s primary role in digestion is to emulsify fats.
Which organ produces bile?
The liver is the organ that produces bile.
Where are most nutrients absorbed?
Most nutrients are absorbed in the small intestine.
What structures enhance absorption in the small intestine?
Villi are the structures that enhance absorption in the small intestine.
Which enzyme digests proteins in the stomach?
Pepsin is the enzyme that digests proteins in the stomach.
What is the large intestine’s main role?
The large intestine’s main role is water absorption.
Where are feces stored before elimination?
Feces are stored in the rectum before elimination.
Which is NOT a liver function?
Insulin production is not a function of the liver; it is produced by the pancreas.
What does the pyloric sphincter regulate?
The pyloric sphincter regulates the passage of chyme to the small intestine.
Which pancreatic enzyme digests lipids?
Lipase is the pancreatic enzyme that digests lipids.
Which part of the alimentary canal is longest?
The small intestine is the longest part of the alimentary canal.
What is the primary cause of diarrhea?
The primary cause of diarrhea is lack of adequate safe water, viruses, and bacteria.
A peptic ulcer in the duodenum is called:
A peptic ulcer in the duodenum is called a duodenal ulcer.
Which factor is NOT linked to peptic ulcers?
A high-fiber diet is not linked to peptic ulcers.
A key symptom of peptic ulcers is:
A key symptom of peptic ulcers is abdominal burning after meals.