30 Questions
What is the primary function of carbohydrates in the body?
To provide energy quickly after consumption
What is the process by which the body breaks down complex carbohydrates into simple ones?
Digestion
What is the purpose of cellulose in the body?
To stay healthy
What is the molecular structure of carbohydrates?
Carbon, hydrogen, and oxygen atoms
What is the process by which the body converts excess glucose into glycogen?
Glycogenesis
What is the main function of fibre in the body?
To stay healthy
What is a characteristic of proteins that speed up chemical reactions?
They are not changed by the chemical reaction.
What type of fats are commonly found in plants, nuts, and fish?
Unsaturated fats
What is the purpose of essential amino acids?
To produce proteins
What is a benefit of including unsaturated fats in one's diet?
Reducing the risk of heart disease
What is the function of fats in the body?
To store energy and absorb vitamins
What is a characteristic of trans fats?
They have been hydrogenated
What is the primary function of carbohydrates?
Serving as the primary source of energy and providing carbon to molecules
What happens if the body lacks sufficient water?
Dehydration occurs, harming the body's systems
What is the purpose of minerals in the body?
To support bone and teeth growth, and maintain acid-base balance
What percentage of energy is converted during cellular respiration?
40%
What is the definition of a calorie?
The energy required to raise the temperature of 1g of water by 1°C
What is the main difference between water-soluble and fat-soluble vitamins?
Water-soluble vitamins are stored in the body, while fat-soluble vitamins cannot be stored
What is the main advantage of the alimentary canal over the digestive sac?
It provides more specialized regions for food processing
What determines the length of the alimentary canal in an animal?
The animal's diet
What is the function of lysozyme in saliva?
Fighting infection by breaking down bacterial cell walls
What is the primary function of the salivary glands?
Chemically digesting food
Why does the body have specialized organs for digestion?
To ensure that it doesn't self-digest
What is the primary function of the mouth in the digestive process?
Mechanically and chemically breaking down food
What is the main function of bile in the digestion process?
To break apart fats because they clump together
What is the primary function of the pancreatic juice in the duodenum?
To neutralize chyme and break it down further
What is the primary role of villi and microvilli in the small intestine?
To increase the surface area for absorption
What is the result of carbohydrate digestion in the small intestine?
They are broken down into sugars that give cells energy
What is the duration of time that food takes to exit the small intestine?
3 to 5 hours
What is the primary role of the liver in the digestion process?
To modify, detoxify, and create substances distributed throughout the body
Learn about the different types of nutrients, their classification, and how the body processes food into smaller molecules for cell function and structure.
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