Exam (elaborations)
Biological Molecules Carbohydrates Exam Questions with Complete Solutions
- Course
- Institution
Biological Molecules Carbohydrates Exam Questions with Complete Solutions
[Show more]
Content preview
Biological Molecules CarbohydratesExam 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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lectknancy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80796 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now