101: The Chemical Components of Cells: Carbohydrates 3.0 / 5 based on 1 rating ? BiologyCells, tissues and organsGCSENone Created by: Georgia SmithCreated on: 10-03-13 01:41 What reactions form polymers? Condensation 1 of 22 What reactions break up polymers? Hydrolysis 2 of 22 Which two molecules are monosaccharides? Glucose and fructose 3 of 22 Which two molecules are disaccharides? Maltose and sucrose 4 of 22 What are aldoses (aldehyde sugars)? Molecules with the carbonyl group at the end of the carbon skeleton 5 of 22 What are ketoses (ketone sugars)? Molecules with the carbonyl group within the carbon skeleton 6 of 22 Where do plant cells store starch? As granules within plastids 7 of 22 Where do animal cells store glycogen? As granules in muscle and liver cells 8 of 22 Is amylose branched or unbranched? Unbranched 9 of 22 Is amylopectin branched or unbranched? Branched 10 of 22 What creates branching in amylopectin? 1-6 linkages at branching points of the molecule 11 of 22 How does cellulose differ from starch? Cellulose is made up of β glucose monomers 12 of 22 How does being made up of β glucose monomers affect the structure of cellulose? Each β glucose monomer is upside down with respect to its neighbours 13 of 22 Are starch molecules helical or straight? Helical 14 of 22 Are cellulose molecules helical or straight? Straight 15 of 22 Are cellulose molecules ever branched? No 16 of 22 What do the hydroxyl groups on the glucose monomers of cellulose allow it to do? Hydrogen bond with adjacent cellulose molecules 17 of 22 Cellulose molecules in plant cells that have bonded through hydrogen bonding form... Microfibrils 18 of 22 Can animals digest cellulose? No, it is excreted, but essential for a healthy diet because it stimulates the digestive tract to secrete mucus 19 of 22 Which creatures can digest cellulose? Prokaryotes, protists, and some fungi 20 of 22 Chitin is used by which organisms in cell walls? Fungi 21 of 22 How does chitin differ to cellulose? It has a nitrogen-containing appendage 22 of 22
Comments
No comments have yet been made