clicker questions remainder exam 4 Flashcards
What is the building block of sugar with a n greater than 3?
CH20
What is the difference between an aldose and a ketose?
Aldose –> contains aldehyde group
Ketose –> contains ketone group
Which conformation has less steric crowding, boat or chair, and therefore lower energy?
Chair conformation
How many carbons are in the ring of glucose?
6
What is a sugar called when you remove one of the OH groups and replace it with a H?
deoxy
Which is the alpha binding partner of sugars?
amylose
What makes up lactose?
A. Fructose and glucose
B. Galactose and glucose
C. Glucose and glucose
D. Maltose and glucose
B. Galactose and glucose
The modified sugars of chitin make up the structural protein of:
A. Bacteria
B. Insects
C. Mollusks
D. Plants
B. Insects
Which atom is not part of modified sugars looked at:
A. Nitrogen
B. Phosphate
C. Sulfur
D. All can be
B. Phosphate
Protein N linked glycosylation occurs through which amino acid?
A. Asn
B. Ser
C. Thr
D. Tyr
A. Asn
What is the function of oligosaccharides in proteins?
A. Help define protein structure
B. Protein Folding
C. Recognition Events
D. All of the above
D. All of the above
What are used to keep enzymes from working properly?
inhibitors
What happens to products downstream from an inhibited enzyme?
decrease downstream
accumulate upstream
What is the final product made from glucose in glycolysis?
pyruvate
What is the gross amount of ATP created in glycolysis?
4
What does hexokinase do to glucose?
phosphorylation
What does phosphoglucose isomerase do the sugar?
changes conformation
Phosphofructokinase is:
A. An irreversible step
B. A control point for glycolysis
C. A rate limiting step
D. All of the above
D. All of the above
What kind of intermediate do class I aldolases form?
schiff base intermediate
What kind of intermediate doestriosephosphate isomerase have?
enediol intermediate
How many 1,3 bisphosphoglycerate are created per glucose?
2
Which metal ion does phosphoglycerate kinase use to form ATP?
Mg2+
D-2,3-bisphosphoglycerate binds to which molecule to influence oxygen binding?
hemoglobin
What is the product of enolase?
phosphoenolpyruvate (PEP)
What are the products of pyruvate kinase?
pyruvate and ATP
