Energy From Food

Why the body needs food?

• Provide energy for everything we do

• Provide materials to grow

• Provide materials to repair tissue

• To be full and get fat

What do we need to do work ?

• we need nutrients from the food we eat

• we need energy to do work

• Mouth

• Liver

Which of the following is false regarding the energy needs of individuals.

• Age: An elderly man above 60 years requires lesser energy than a teenager.

• Gender: Males require more energy than females as they are more active.

• Size: A taller person requires more energy than a shorter person.

• Occupation: An administrator requires less energy than a farmer.

What happens when: Energy Input > Energy Output

• Lose weight

• Gain weight

• Maintain weight

______________ are a major source of energy and can come from bread, pasta, potato, and rice

• proteins
• carbohydrates
• calories
• cholesterol

The energy utilized by our body comes from the nutrients stored in the food we eat in this order: 

• Carbohydrates, Proteins, Fats
• Carbohydrates, Fats, Proteins
• Fats, Carbohydrates, Proteins
• Fats, Proteins, Carbohydrates

How nutrients are used by the body?

• Both second and Fourth

• Provided raw materials to carry out essential processes

• Provide energy to carry out essential processes

• Provide chemicals to get energy from sun

The main source of energy for ALL organisms comes from

• producers

• the sun

• primary consumers

• secondary consumers