Bio Review Revised Unraveling the Mystery of Lactose Tolerance

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What is lactose?

Back

Lactose is a sugar found in milk and dairy products, composed of glucose and galactose.

Front

What enzyme breaks down lactose?

Back

Lactase is the enzyme that breaks down lactose into glucose and galactose, allowing for absorption in the body.

Front

What is lactose intolerance?

Back

Lactose intolerance is the inability to digest lactose due to a deficiency of the enzyme lactase, leading to gastrointestinal symptoms.

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What are the symptoms of lactose intolerance?

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Symptoms include bloating, diarrhea, gas, and abdominal pain after consuming lactose-containing foods.

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How is lactose tolerance inherited?

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Lactose tolerance is often inherited genetically, with variations in the LCT gene affecting lactase production into adulthood.

Front

What is the role of genetic material in lactose tolerance?

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Genetic material determines the production of lactase enzyme, influencing an individual's ability to digest lactose.

Front

What is the difference between mitosis and meiosis?

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Mitosis produces two identical daughter cells, while meiosis produces four genetically diverse gametes with half the genetic material.

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What are gametes?

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Gametes are reproductive cells (sperm and egg) that carry half the genetic information from each parent.

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What is the significance of fertilization?

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Fertilization is the process where a sperm and egg combine to form a zygote, restoring the full set of genetic material.

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What is the purpose of the lactose tolerance test?

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The lactose tolerance test measures how well the body can digest lactose by monitoring glucose levels after lactose consumption.