U2: Digestion and Energy in Food

What is the process called where food moves from the mouth into the stomach and then into the intestines?

• Metabolism

• Digestion

• Respiration

• Photosynthesis

Which of the following is NOT a type of organic molecule found in foods?

• Fats

• Proteins

• Carbohydrates

• Water

Fill in the blank: The energy associated with food is typically reported in ______ on a nutrition label.

• grams

• calories

• liters

• joules

What term describes all the chemical reactions that take place in a living organism?

• Digestion

• Metabolism

• Respiration

• Photosynthesis

Which molecules do not store useable energy for an organism?

• Organic molecules

• Inorganic molecules

• Carbohydrates

• Proteins

The purpose of digestion is basically to ____.

• Get energy out of food so the organism can use it to move and grow.

• Turn food into energy so the organism can stay warm and move around.

• Break large molecules down so they can enter cells and help organisms stay alive.

• Build small molecules up so they can enter cells and help organisms grow.

Which molecule is critical for organisms to bring into their bodies when they breathe? It's not directly involved in digestion, but they still use blood to move it to their cells.

• Air

• Carbon dioxide

• Organic molecules

• Oxygen

Fill in the blank: Foods going through the digestive system still store ______.

• energy

• water

• vitamins

• minerals

Which process allows carbon dioxide to leave the body?

• Digestion

• Breathing

• Metabolism

• Photosynthesis

According to this model, the small intestine is responsible for ______.

• Ingesting food

• Digesting food

• Absorbing water

• Removing faeces.