Obtaining Energy and Removing Waste

The amount of energy in food is measured in:

• Calories

• Grams

• Liters

• Meters

A calorie is the amount of energy it takes to raise the ________ of 1Kg of water by 1*C.

• Temperature

• Pressure

• Volume

• Density

What is the process of breaking down food into small particles and molecules that the body can absorb and use?

• Digestion

• Respiration

• Circulation

• Excretion

Mechanical digestion begins in the ________.

• Mouth

• Stomach

• Small Intestine

• Large Intestine

Chemical reactions break down pieces of food into smaller molecules in ________.

• Stomach

• Small Intestine

• Large Intestine

• Liver

What is the muscular tube that connects the mouth to the stomach?

• Esophagus

• Trachea

• Bronchus

• Larynx

Food moves through the esophagus and the rest of the digestive tract by waves of muscle contraction called ________.

• Peristalsis

• Contraction

• Relaxation

• Expansion

The stomach is a large hollow organ used to ________ and aid in ________.

• Digest food, absorption

• Store food, digestion

• Absorb nutrients, excretion

• Filter waste, circulation

What are the parts of food used by the body to grow and survive?

• Nutrients

• Vitamins

• Minerals

• Fiber

Which nutrient helps to build muscles?

• Protein

• Carbohydrate

• Fat

• Vitamin