Carbohydrates: Starch

What is the primary function of carbohydrates in the body?

• Provide energy

• Support brain function

• Build muscle

• Regulate body temperature

What are the main food sources of starch?

• Chicken

• Potatoes, rice, bread, pasta, legumes

• Carrots

• Bananas

How are starches digested in the body?

• Enzymes like amylase break down starch into smaller sugar molecules in the mouth, and further digestion occurs in the small intestine to convert sugars into glucose for absorption.

• Starches are absorbed whole without digestion

• Starches are broken down by stomach acid directly into glucose

• Starches are converted into proteins during digestion

What are the two main types of starch?

• glucose and fructose

• sucrose and lactose

• cellulose and hemicellulose

• amylose and amylopectin

What is the difference between amylose and amylopectin?

• Amylose is soluble in water, while amylopectin is insoluble.

• Amylose is a linear polymer, while amylopectin is a branched polymer.

• Amylose is found in animals, while amylopectin is found in plants.

• Amylose is a type of protein, while amylopectin is a type of lipid.

How does the body use starch for energy?

• Starch is stored in the brain for energy production

• Starch is excreted from the body without being used

• Glucose molecules are produced from starch through digestion and used by cells to produce ATP for energy.

• Starch is directly converted into muscle tissue for energy

What are some examples of starchy vegetables?

• potatoes, sweet potatoes, corn, peas

• spinach

• carrots

• broccoli

What role does starch play in food preservation?

• Starch has no impact on food preservation.

• Starch accelerates microbial growth in food.

• Starch absorbs excess moisture to prevent microbial growth and spoilage.

• Starch causes food to spoil faster.

How can you test for the presence of starch?

• Salt test

• Vinegar test

• Sugar test

• Iodine solution test

What are the health benefits of consuming starch in moderation?

• Consuming starch in moderation can lead to weight gain

• Consuming starch in moderation has no impact on blood sugar levels

• Starch in moderation may cause digestive issues

• Starch in moderation can provide energy, support digestive health, and regulate blood sugar levels.