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Biological Molecules Carbohydrates Exam Questions with Complete Solutions $12.49   Add to cart

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Biological Molecules Carbohydrates Exam Questions with Complete Solutions

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  • Biological Molecules
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  • Biological Molecules

Biological Molecules Carbohydrates Exam Questions with Complete Solutions

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  • November 5, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biological Molecules
  • Biological Molecules
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Biological Molecules Carbohydrates
Exam Questions with Complete
Solutions
Essential molecules for organisms to function - Answer-Carbohydrates, proteins, lipids,
nucleic acids, water

Monomers - Answer-Single repeated unit that makes up a polymer

Polymers - Answer-Long chains of many monomers

triglyceride monomers - Answer-3 fatty acids and glycerol

DNA monomers - Answer-nucleotides

Organic - Answer-Contains carbon

Inorganic - Answer-Does not contain carbon

Polypeptide monomers - Answer-amino acids

Polysaccharide monomers - Answer-monosaccharides

Are carbohydrates hydrophilic or hydrophobic? - Answer-hydrophilic

Are carbohydrates organic? - Answer-Yes

Are proteins, lipids, and nucleic acids organic? - Answer-Yes

Each carbon atom forming four covalent bonds makes compounds very - Answer-Stable

Why does each carbon atom forming four covalent bonds make compounds very
stable? - Answer-Covalent bonds are strong so they require a large energy input to
break them

What other atoms can carbon atoms form covalent bonds with? - Answer-Oxygen,
nitrogen and sulphur

What shapes can Carbon molecules take? - Answer-Chains, Double Bonds, Branches,
and Rings

, Macromolecules - Answer-Large molecules containing 1000 or more atoms therefore
having a high molecular mass. Polymers can be macromolecules however not all
macromolecules are polymers

What elements do all carbohydrate molecules contain? - Answer-C, H, O

Carbohydrates formula - Answer-Cx(H2O)y

What ratio are H and O atoms found in carbohydrates - Answer-2:1

What are the three types of carbohydrates? - Answer-monosaccharides, disaccharides,
polysaccharides

Monosaccharide - Answer-Single sugar monomer, all are reducing sugars

Disaccharide - Answer-Sugar formed from two monosaccharides joined by a glycosidic
bond formed in a condensation reaction

Polysaccharide - Answer-Polymer of many monosaccharides joined by a glycosidic
bond in a condensation reaction

Monosaccharides examples - Answer-glucose, fructose, galactose

Disaccharides examples - Answer-sucrose, lactose, maltose

Polysaccharides examples - Answer-starch, glycogen, cellulose

Monosaccharides function - Answer-Source of energy in respiration, building blocks for
polymers

Disaccharides function - Answer-Sugar found in germinating seeds (maltose), mammal
milk sugar (lactose), sugar stored in sugar cane (sucrose)

Polysaccharides function - Answer-Energy storage (plants- starch- and animals-
glycogen), structural (cell wall- cellulose)

Covalent bond - Answer-Sharing of two or more electrons between atoms. The
electrons can be shared equally resulting in non-polar covalent bond or unequally
resulting in a polar bond.

What happens when electrons are shared unequally? - Answer-One atom can be more
electronegative

Are covalent bonds strong or weak? - Answer-Strong

Can multiple pairs of electrons be shared in covalent bonds? - Answer-Yes

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