Mid Term Test Flashcards
What kind of carbohydrate is glucose?
monosaccharide
Lipids can be involved in all of the following process except:
a. energy storage
b. catalysing chemical reactions
c. acting as vitamins
d. acting as signal molecules
e. providing padding to essential organs
b: catalysing chemical reactions
Which of the following associations between amino acid R groups are the strongest?
a. hydrogen bonds
b. hydrophobic interactions
c. peptide bonds
d. ionic bonds
e. disulphide bridges
e. disuplhide bridges
How was the artificial sweetener, aspartame discovered?
while researching treatments for gastric ulcers the scientist accidentally got some on his hand, and later licked it and noticed a sweet taste
What is the name of the covalent bonds that join amino acids together?
Peptide bonds
Which of the following elements is mismatched with its properties or functions?
Select one:
a. hydrogen – very electronegative
b. carbon – forms the back bone of organic compounds
c. nitrogen – component of proteins
d. oxygen – can participate in hydrogen bonding
e. all of the others are correctly matched
a. hydrogen – very electronegative
What is the name of the covalent bonds that join nucleotides together?
e. peptide
Which of the following levels of protein structure can include hydrogen bonding?
Select one:
a. primary, secondary and tertiary
b. primary and tertiary
c. secondary, tertiary and quaternary
d. primary, secondary, tertiary and quaternary
e. primary and secondary
c. secondary, tertiary and quaternary
Which parts of an amino acid contribute most to the tertiary and quaternary structure of a protein?
both the amino group and the carboxylic acid group contribute
Saturated fatty acids are so named because they are saturated with:
Hydrogen
What is the general formula for a carbohydrate?
𝐶𝑥(𝐻2𝑂)𝑦
Which forces help geckos to climb up a wall?
van der Waals force
How many bonds can each carbon atom make?
4
What is the difference between storage polysaccharides and structural polysaccharides?
Storage polysaccharides include examples such as starch and glycogen, and structural polysaccharides include examples such as cellulose and chitin.
What is a structural polysaccharide?
Structural Polysaccharides are polysaccharides that take part in forming the structural frame work of the cell walls in plants and skeleton of animals. Structural polysaccharides are of two main types: chitin and cellulose.
What are some examples of saturated fats?
Examples of foods containing a high proportion of saturated fat include animal fat products such as cream, cheese, butter, other whole milk dairy products and fatty meats which also contain dietary cholesterol. Certain vegetable products have high saturated fat content, such as coconut oil and palm kernel oil.
What are some examples of unsaturated fats?
Foods containing unsaturated fats include avocado, nuts, olive oils, and vegetable oils such as canola. Meat products contain both saturated and unsaturated fats.
Are saturated fats found in plants or animals?
It is mainly found in animal products but can be found in some plant sources.
Are un-saturated fats found in plants or animals?
Unsaturated fat typically comes from plant sources such as olives, nuts, or seeds – but unsaturated fat is also present in fish.
What is the general formula for a protein?
RCH(NH2)COOH
The synthetic process by which monomers are covalently linked is called?
Condensation
Which are stronger? Covalent or hydrogen bonds?
Covalent bonds
Which organ of the body stores the most carbohydrate?
The liver
What are ribosomes?
Ribosomes link amino acids together in the order specified by messenger RNA molecules.
What is the name of the covalent bonds that join nucleotides together?
Phosphodiester
Which atoms are most likely to form an ionic bond?
Sodium and chlorine
Saturated fatty acids are so named because they are saturated with?
Hydrogen
What kind of carbohydrate is glucose?
Monosaccharide
What is most likely to contain saturated rather than unsaturated fats?
Human brain
Structural polysaccharides usually?
Have extensive hydrogen bonding between adjacent molecules
Where is the energy stored in a molecule of ATP?
In the bonds connecting the two terminal phosphate groups
What is the name of the covalent bonds that join amino acids together?
Peptide bonds
Which organ of the body stores the most carbohydrate?
The liver
