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BCHS > clicker questions remainder exam 4 > Flashcards

clicker questions remainder exam 4 Flashcards

1
Q

What is the building block of sugar with a n greater than 3?

A

CH20

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2
Q

What is the difference between an aldose and a ketose?

A

Aldose –> contains aldehyde group
Ketose –> contains ketone group

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3
Q

Which conformation has less steric crowding, boat or chair, and therefore lower energy?

A

Chair conformation

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4
Q

How many carbons are in the ring of glucose?

A

6

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5
Q

What is a sugar called when you remove one of the OH groups and replace it with a H?

A

deoxy

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6
Q

Which is the alpha binding partner of sugars?

A

amylose

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7
Q

What makes up lactose?
A. Fructose and glucose
B. Galactose and glucose
C. Glucose and glucose
D. Maltose and glucose

A

B. Galactose and glucose

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8
Q

The modified sugars of chitin make up the structural protein of:
A. Bacteria
B. Insects
C. Mollusks
D. Plants

A

B. Insects

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9
Q

Which atom is not part of modified sugars looked at:
A. Nitrogen
B. Phosphate
C. Sulfur
D. All can be

A

B. Phosphate

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10
Q

Protein N linked glycosylation occurs through which amino acid?
A. Asn
B. Ser
C. Thr
D. Tyr

A

A. Asn

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11
Q

What is the function of oligosaccharides in proteins?
A. Help define protein structure
B. Protein Folding
C. Recognition Events
D. All of the above

A

D. All of the above

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12
Q

What are used to keep enzymes from working properly?

A

inhibitors

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13
Q

What happens to products downstream from an inhibited enzyme?

A

decrease downstream
accumulate upstream

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14
Q

What is the final product made from glucose in glycolysis?

A

pyruvate

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15
Q

What is the gross amount of ATP created in glycolysis?

A

4

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16
Q

What does hexokinase do to glucose?

A

phosphorylation

17
Q

What does phosphoglucose isomerase do the sugar?

A

changes conformation

18
Q

Phosphofructokinase is:
A. An irreversible step
B. A control point for glycolysis
C. A rate limiting step
D. All of the above

A

D. All of the above

19
Q

What kind of intermediate do class I aldolases form?

A

schiff base intermediate

20
Q

What kind of intermediate doestriosephosphate isomerase have?

A

enediol intermediate

21
Q

How many 1,3 bisphosphoglycerate are created per glucose?

A

2

22
Q

Which metal ion does phosphoglycerate kinase use to form ATP?

A

Mg2+

23
Q

D-2,3-bisphosphoglycerate binds to which molecule to influence oxygen binding?

A

hemoglobin

24
Q

What is the product of enolase?

A

phosphoenolpyruvate (PEP)

25
Q

What are the products of pyruvate kinase?

A

pyruvate and ATP

BCHS (7 decks)

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