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Biological Molecules
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What is found in amylopectin but not in amylose?
1,6 (glycosidic) bond, branching
Polysaccharides, triglycerides and polypeptides are polymers. True or false?
False
A gram of carbohydrate contains more energy than a gram of lipid. True or false?
False
The simplest sugars have 6 carbons. True or false?
False
All carbohydrates are sugars. True or false?
False
Name two disaccharides.
Maltose, sucrose, lactose
Which protein has a role in oxygen transportation by the blood?
Haemoglobin
What is the main function of triglycerides?
Energy storage
When 5 amino acids are linked together to form a small peptide molecule, how many water molecules are released?
4
Which structural level of proteins is shown in the diagram?
secondary
Which protein structural level is betwee secondary and quaternary?
Tertiary
Which elemets (atoms) are found in lipids?
C, H, O
What is the smallest number of nitrogen atoms in all amino acids?
1
What is the smallest number of carbon atoms in all amino acids?
2
What is the smallest number of oxygen atoms in all amino acids?
2
Which type of bond(s) hold(s) primary structure of proteins together?
Peptide bond
Which of these polyssaccharides is the odd one out in terms of the types of glycosidic bonds? Glycogen, Amylopectin, Amylose
Amylose
Which of these polyssaccharides is the odd one out in terms of the monomers? Glycogen, Amylopectin, Cellulose
Cellulose
What is the storage polysaccharide in animal cells?
Glycogen
Which is a Beta glucose?
2
What is the name and number of covalent bonds needed to form a triglyceride from its subunits?
3 ester bonds
What type of reaction is demonstrated in the image?
Condensation or anabolic
What are the building blocks of lipids?
Fatty acids and glycerol
Which two molecules are produced when a glucose and a fructose are used in condensation reaction?
Sucrose and water
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