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Carbohydrates Carbohydrates are better known to students as sugars and starches. Monosaccharides or simple sugars such as glucose and fructose C6H12O6 function as energy source in cells during cellular respiration and are also used to build cell structures and other organic molecules within the cells.
Disaccharides are composed of two monosaccharides joined together. Sucrose table sugar is a disacharide composed of one glucose and one fructose molecule. Are long chains of monosaccharides bond together. Plants store excess glucose in the form of starch, a polysaccharide composed of long chains of glucose.
Starches can be found in potatoes, rice, wheat, corn, bananas, peas, beans, lentils, and other tubers, seeds and fruits of plants. Animals and humans store excess glucose in the form of glycogen in the liver and muscles.
Between meals the liver breaks down glycogen to glucose and releases it into the blood stream to supply glucose to cells in need. Other important polysaccharides are cellulose and chitin.
Cellulose makes up the cell wall of plants whereas chitin provides structure to fungi and the exoskeleton of arthropods. Lipids A lot of lipids function as long-term energy storage.
One gram of fat stores more than twice as much energy as one gram of carbohydrates.
Lipids are also an important component of the cell membrane. Lipids consist of glycerol and fatty acids "tails". The fatty acid "tails" are long chains of carbon and hydrogen that contribute to the non-polar behavior of fats - they don't mix with polar water.
The fatty acid chains can be saturated, with all carbons saturated with hydrogen atoms forming a straight chain without double bonds.
Unsaturated fatty acids contain double bonds within the carbon chain, which results in a bend of the chain. Proteins Proteins are complex, specialized molecules composed of carbon, oxygen, hydrogen, nitrogen and sometimes sulfur.
The building blocks of proteins are amino acids. There are 20 different amino acids that combine to form polypeptides proteins. The different amino acids are similar in structure: The different amino acids have different side chain, but are otherwise identical.
Proteins have many important roles in organisms.Join our mailing list and never miss out on new mixed-media projects, techniques, info on new online classes or Cloth Paper Scissors shop sale!
* Art Lessons Story Scrolls with Libby Williamson. Lesson learned: Make the marks bolder for vibrant results. After letting the muslin dry, I pinned the squares to felt, and got ready to do.
Lessons Learned team provides support through observations, insights, lessons. By Gabrielle Kuholski December 6, Share on Twitter; Share on Facebook; Share on Reddit. Mathematical goals. This lesson unit is intended to help you assess how well students are able to: Recall and use the properties of exponents to generate equivalent numeric expressions.
you “Teach us” the topic on the piece of paper you have received. next day. You then put together a very focused mini-lesson, complete with 1) an original explanation or demonstration of.
the topic, 2) a short, original exercise for the students to practice on, and 3) a brief, original assessment plan to. see how well they have learned. “The qualities of good writing are complex and nuanced. But they can be named, and I’m convinced they can be taught.
Of all the arts, writing should be among the most democratic. This is a two-class lesson plan. During the first class students are entered into a "mini-medical school" where they will learn about the functions and components of blood and make a candy model to reflect their relative proportions.