8.L.5 Biotechnology

8.L.1 Energy for the Body

Living things are made up of cells

• Living things grow and develop

• Living things obtain and use material and energy

Photosynthesis- Plants get energy and make food (Glucose) from sunlight

• 6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

• Carbon Dioxide + Water -->(Reacts with SunLight) Glucose + Oxygen

Cellular Respiration= how WE get and use energy..... It is the EXACT Opposite of Photosynthesis

• C₆H₁₂O₆ + O₂ --> 6CO₂ + 6H₂O + energy

• Glucose + oxygen --> carbon dioxide + water + energy

• Plant get energy from the sun and we get our energy from the plants and other foods we eat.

Energy is required for organisms to grow, build cells, and maintain homeostasis=balance

• The total of all chemical reactions in the organism is -Metabolism

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Building Cells

• Carbohydrates- Simple sugars... sweets, potato, rice

• Lipids- fats and oils.. stored in cells for protection and warmth

• Proteins- build cells and fight off disease... meat

Multiple Choice

Which is a reason why proteins are important to a balanced diet?

• Proteins store and transmit genetic information

• Proteins provide long term energy storage

• Proteins are essential for the growth and repair of tissues

• Proteins are needed to insulate the body

Multiple Choice

Which is NOT a benefit of regular exercise?

• Maintains heart health

• Increases the strength of muscle and bone

• Increases heart rate, providing more oxygen to be used

• All are benefits of regular exercise

Multiple Choice

Which best describes a negative effect of chewing tobacco?

• Addiction and susceptibility to cancer

• Slowed reaction time

• A decrease in lung capacity

• Impaired thinking and judgment

Multiple Choice

Which may be best used as long-term energy storage

• lipids

• carbohydrates

• proteins

• nucleic acids

Multiple Choice

How does an energy balance occur in the body?

• An energy balance can’t occur in the body

• Energy in must be lower than energy out

• Energy in must be greater than energy out

• Energy in must equal energy out

Multiple Choice

Which food would provide the quickest energy source?

• hamburger

• butter

• pasta

• olive oil