Answers to the text questions.

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Presentation transcript:

Answers to the text questions. Organic Molecules Answers to the text questions.

Introduction What is the difference between an organic compound and an inorganic compound? Organic compounds are based on carbon and are found in living things. Exceptions to this are: CO2, and CO. Inorganic compounds are other molecules.

Carbohydrates Draw a glucose molecule. 6 carbons

Carbohydrates Draw a ribose molecule. 5 carbons

Carbohydrates Give three examples of the following: Monosaccharide Glucose Fructose Galactose

Carbohydrates Give three examples of the following: Disaccharide Maltose Lactose Sucrose

Carbohydrates Give three examples of the following: Polysaccharide Starch Cellulose Glycogen

Carbohydrates In animals, what are the functions of: a. glucose b. lactose c. glycogen Glucose is used in cellular respiration to create ATP. Lactose is a milk sugar, which serves to store glucose. Glycogen serves as a short-term way to store glucose. It is stored in our liver.

Carbohydrates In plants, what are the functions of: a. fructose b. sucrose c. cellulose Fructose is the sugar found in fruits. Plants use it to form sucrose, which will form starch, plants’ energy storage molecule. Sucrose is a soluble sugar that is transported in sap, which will be converted to starch. Cellulose provides structural support in the cell wall.

Lipids Draw the basic structure of a fatty acid.

Lipids Give 3 functions of lipids. Energy storage Thermal Insulation In animals, energy is stored as fat (triglycerides). In plants, energy is stored as oil Thermal Insulation A layer of fat beneath the skin, called the subcutaneous, insulates against heat loss. This is not a triglyceride. Buoyancy Lipids are less dense than water, so therefore helps animals float.

Lipids Compare the use of lipids and carbohydrates in energy storage.

Proteins Draw the basic structure of an amino acid. An amino group An R Group A carboxylic acid

Making and Breaking Polymers Define condensation A chemical reaction that combines two monomers into a polymer, and in the process creates a water molecule. Define hydrolysis A chemical reaction that breaks down polymers, and in the process splits a water molecule.

Seeing the difference!