Absorption enzyme

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Questions and Answers

What are the by-products produced by excessive amounts of certain carbohydrates?

  • Acids and gas (correct)
  • Proteins and lipids
  • Water and oxygen
  • Vitamins and minerals

What is the most abundant indigestible carbohydrate in our food?

  • Fat
  • Starch
  • Fiber (correct)
  • Sugars

What type of carbohydrates include monosaccharides and disaccharides?

  • Simple carbohydrates (correct)
  • Indigestible carbohydrates
  • Complex carbohydrates
  • Refined carbohydrates

What is resistant starch?

<p>Starch that escapes digestion in the small intestine (C)</p> Signup and view all the answers

Which of the following is NOT a source of unrefined carbohydrates?

<p>Candy (D)</p> Signup and view all the answers

What happens in lactose intolerance?

<p>Lactase levels are reduced (A)</p> Signup and view all the answers

What carbohydrate source provides 4 calories per gram?

<p>Oligosaccharides (B)</p> Signup and view all the answers

To be absorbed from the digestive tract, carbohydrates must be digested into what?

<p>Monosaccharides (D)</p> Signup and view all the answers

What type of carbohydrates must be broken down into monosaccharides to be absorbed into the body?

<p>Both simple and complex carbohydrates (A)</p> Signup and view all the answers

Which component of wheat is primarily used to make white flour?

<p>Endosperm (D)</p> Signup and view all the answers

Which of the following is a monosaccharide found in fruits?

<p>Fructose (A)</p> Signup and view all the answers

What type of sugar is lactose classified as?

<p>Disaccharide (B)</p> Signup and view all the answers

Which sugar is known as common table sugar?

<p>Sucrose (A)</p> Signup and view all the answers

What is the primary purpose of milling wheat?

<p>To separate the components of the grain (C)</p> Signup and view all the answers

Which of the following correctly describes polysaccharides?

<p>Many sugar molecules linked together (D)</p> Signup and view all the answers

Which molecule is formed when two glucose molecules link together?

<p>Maltose (B)</p> Signup and view all the answers

What is the primary function of glucose in the body?

<p>Act as a fuel for the brain and nerves (A)</p> Signup and view all the answers

When glucose is split for energy, what is the initial result?

<p>Release of some energy (D)</p> Signup and view all the answers

What is one of the roles of sugars in food preparation?

<p>To create a smooth texture (A)</p> Signup and view all the answers

What happens to sugars when exposed to heat?

<p>They undergo browning reactions (D)</p> Signup and view all the answers

How do fibers contribute to digestive health?

<p>By adding bulk and viscosity to foods (B)</p> Signup and view all the answers

What is one way sugars are converted in the body?

<p>Into other food compounds (C)</p> Signup and view all the answers

What is the role of starch in gel formation?

<p>To trap water and form gels (A)</p> Signup and view all the answers

What does glucose primarily fuel in the body?

<p>The activity of red blood cells (A)</p> Signup and view all the answers

What is a major consequence of untreated diabetes?

<p>Increased risk of amputations (D)</p> Signup and view all the answers

What are the common forms of diabetes?

<p>Type 1 and Type 2 (B)</p> Signup and view all the answers

What is prediabetes characterized by?

<p>Fasting blood glucose levels slightly higher than normal (A)</p> Signup and view all the answers

Which professional can help manage diabetes?

<p>Registered Dietitian Nutritionist (D)</p> Signup and view all the answers

What term describes the chronic condition of elevated blood glucose?

<p>Diabetes Mellitus (A)</p> Signup and view all the answers

Which of the following costs are associated with diabetes?

<p>Lost work and disability costs (C)</p> Signup and view all the answers

What significant risk does chronic elevated blood glucose pose?

<p>Altered metabolism in virtually every cell (B)</p> Signup and view all the answers

What is a potential outcome of permanent damage from diabetes?

<p>Kidney failure (A)</p> Signup and view all the answers

What is resistant starch considered to be?

<p>A kind of fiber (B)</p> Signup and view all the answers

Which of the following foods contains resistant starch?

<p>Cooked dried beans (A)</p> Signup and view all the answers

How does starch need to be processed to obtain glucose from food?

<p>It must be broken down into monosaccharides (B)</p> Signup and view all the answers

What is the primary role of digestive enzymes in the small intestine?

<p>To split disaccharides into monosaccharides (C)</p> Signup and view all the answers

Which disaccharide is mentioned as needing to be split once before absorption?

<p>Lactose (D)</p> Signup and view all the answers

What happens to resistant starch in the digestive system?

<p>Most remains intact and ferments in the colon (B)</p> Signup and view all the answers

Which carbohydrate requires the most extensive breakdown?

<p>Resistant starch (D)</p> Signup and view all the answers

What role does the salivary enzyme play in digestion?

<p>It acts on starch while it is still in the stomach (C)</p> Signup and view all the answers

What is the recommended percentage of calories that should come from carbohydrates for a healthy diet?

<p>45 to 65 percent (D)</p> Signup and view all the answers

Which type of carbohydrates is considered the best source?

<p>Complex carbohydrates from unrefined sources (D)</p> Signup and view all the answers

What hormone triggers the breakdown of liver glycogen for glucose release during emergencies?

<p>Epinephrine (A)</p> Signup and view all the answers

What role do snacks play in maintaining blood glucose levels?

<p>Snacks stabilize blood glucose levels by providing energy. (B)</p> Signup and view all the answers

What happens to most excess glucose under normal conditions?

<p>It is stored as glycogen or used for fuel. (C)</p> Signup and view all the answers

How does the glycemic index (GI) categorize foods?

<p>By their effect on blood glucose levels (C)</p> Signup and view all the answers

What effect does soluble fiber have on glucose digestion?

<p>It slows down digestion, leading to a steady glucose release. (D)</p> Signup and view all the answers

What is NOT a recommended source of carbohydrates?

<p>Sugary snacks and drinks (A)</p> Signup and view all the answers

Flashcards

Refined Foods

Foods that have been processed to remove certain parts, often leading to lower fiber content.

Simple Carbohydrates

Carbohydrates made up of one or two sugar units, easily digested.

Complex Carbohydrates

Carbohydrates made up of many sugar units, providing sustained energy.

Monosaccharides

Single sugar units that are the building blocks of carbohydrates.

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Disaccharides

Two sugar units bonded together.

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Glucose

A common monosaccharide, often called blood sugar, crucial for energy.

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Wheat Kernel Components

The three parts of a wheat kernel: bran, endosperm, and germ.

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Carbohydrate Digestion

Breaking down carbohydrates into monosaccharides to be absorbed by the body.

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Sugars' function

Sugars provide sweetness, energy for bodily functions, and glucose for the brain and nerves.

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Glucose as fuel

Glucose is the primary fuel for the brain and nerves, and to some extent, other parts of the body.

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Glucose storage

Muscle and liver glycogen store glucose.

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Glucose browning

Sugars undergo browning reactions when heated, creating appealing colors, aromas and tastes.

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Sugars in food texture

Sugars help create tender and smooth textures in cooked foods.

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Sugars creating gels

Sugars interact with proteins, expanding and trapping water when heated, forming gels.

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Carbohydrate digestive point

Glucose's breakdown for energy in the body has a point of no return where glucose is lost.

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Fiber's role in digestion

Fibers maintain healthy bowel function by increasing the bulk and viscosity of foods.

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Oligosaccharides

Indigestible carbohydrates in beans that cause flatulence because they are broken down by bacteria in the large intestine.

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Resistant Starch

Starch that isn't digested in the small intestine due to protective structures or cooking processes.

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Lactose Intolerance

Inability to digest lactose (a sugar in milk) due to low levels of the lactase enzyme.

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Carbohydrate Digestion

Breaking down carbohydrates into simpler units (monosaccharides) so they can be absorbed by the body.

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Simple Carbohydrates

Carbohydrates made up of single or double sugars.

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Complex Carbohydrates

Carbohydrates made up of many sugar units.

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Fiber

The most abundant indigestible carbohydrate from food.

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Monosaccharides

Single sugar units, the building blocks of carbohydrates needed for absorption.

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Resistant Starch

A type of starch that's hard to digest, acting like fiber.

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Digesting Starch

Breaking down starch into simpler sugars for absorption.

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Disaccharides

Two sugar units joined together.

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Monosaccharides

Single sugar units absorbed through the intestine.

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Colon Fermentation

Bacteria in the colon ferment some resistant starch.

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Digestive Enzymes

Small intestine enzymes split disaccharides into sugars.

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Starch Breakdown

Complex process requiring extensive breakdown.

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Salivary Enzyme Action

Salivary enzymes start starch breakdown in mouth.

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Glycogen Storage

Glucose stores as glycogen in the muscles and liver, which can release glucose into the bloodstream

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Carbohydrate Eating Pattern

Eating carbohydrate-rich foods regularly provides 45-65% of dietary calories from complex carbohydrates.

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Glycemic Index (GI)

A scale that ranks how quickly a food raises blood glucose.

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Liver's Role in Glucose

The liver converts glucose to fat, but mainly stores excess glucose as glycogen or uses it immediately.

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Complex Carbohydrates

Carbohydrates made of many sugar units, providing sustained energy.

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Blood Glucose Regulation

Eating balanced meals with protein, fat, and fiber slows digestion, releasing glucose gradually.

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Fast Energy Sources

Candy, sugary drinks, and energy bars are quick sources of sugar energy.

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Best Carbohydrate Sources

Regular meals and snacks with starch, fiber, protein, and some fat are the best sources of carbohydrates.

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Diabetes Definition

Metabolic diseases with elevated blood glucose and inefficient insulin regulation.

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Type 1 and Type 2 Diabetes

Common forms of diabetes involving abnormal insulin and blood glucose handling.

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Prediabetes

A condition with high blood glucose, not yet diabetes.

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Diabetes Health Risks

Amputation, kidney failure, blindness are possible.

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Diabetes Cost (US)

Estimated $174 Billion annually affecting healthcare services and more.

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Toxicity of Excess Glucose

Chronically high blood glucose harms almost every body cell.

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Hemodialysis

Treatment for kidney disease, removes wastes from blood.

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Prediabetes Warning Signs

Few or no initial symptoms exist; long-term damage may occur unseen.

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