L#05%2008-30-11%20Ch4%2c%20carbohydrates%2c%20lipids.protein%20-calories

L#05%2008-30-11%20Ch4%2c%20carbohydrates%2c%20lipids.protein%20-calories

Info iconThis preview shows pages 1–17. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology 1103 – Lecture #5 08-30-11 Today’s lecture is based on Chapter 4. Nutrition, Metabolism, Enzymes
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Life is based on the carbon atom
Background image of page 2
The carbon cycle
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Macromolecules monomer Proteins amino acids Carbohydrates simple sugars Lipids fatty acids and glycerol Nucleic acids nucleotides
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Calories Fat: 1 gram = 9 calories Protein: 1 gram = 4 calories Carbohydrates: 1 gram = 4 calories Alcohol: 1 gram = 7 calories
Background image of page 8
A calorie is the amount of energy, or heat , it takes to raise the temperature of 1 gram of water 1 degree Celsius (1.8 degrees Fahrenheit). A gallon of gasoline contains about 31,000,000 calories. Most of us think of calories in relation to food , as in "This can of soda has 200 calories." It turns out that the calories on a food package are actually kilocalories (1,000 calories = 1 kilocalorie).
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
A visit to McDonalds……
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Big Mac
Background image of page 12
Big Mac nutrition label
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Carbohydrates Two main functions 1. energy (“empty calories”) 2. structure cell walls of plants and fungi external skeleton in arthropods
Background image of page 14
Carbohydrates Hydrates of carbon (CH 2 O) 1. Monosaccharides (monomer) glucose fructose galactose C 6 H 12 O 6
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Disaccharides Glucose plus glucose = maltose – malt sugar Glucose plus fructose = sucrose – table sugar Glucose plus galactose = lactose – milk sugar Note: -ose = sugar
Background image of page 16
Image of page 17
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2011 for the course BIOL 1103 taught by Professor Armstrong during the Spring '07 term at University of Georgia Athens.

Page1 / 52

L#05%2008-30-11%20Ch4%2c%20carbohydrates%2c%20lipids.protein%20-calories

This preview shows document pages 1 - 17. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online