Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Biology- Unit 1 > Flashcards

Biology- Unit 1 Flashcards

1
Q

What bonds are formed and what reaction occurs when two monosaccharide’s join together?

A

Glycosidic

Condensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Maltose is comprised of…

A

Two glucose molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Sucrose is comprised of…

A

Glucose and fructose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Lactose is comprised of…

A

Glucose and galactose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Glycogen and starch are both formed from…

A

Alpha glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cellulose is formed from…

A

Beta glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe amylose

A

Unbranched chain
1-4 Glycosidic bonds
Very compact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe amylopectin

A

Branched chains
1-4 and 1-6 Glycosidic bonds
More rapidly digested

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a saturated lipid?

A

Animal fats

No double carbon bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is an unsaturated lipid?

A

Found in plants
Double carbon bonds
Lower melting point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the properties of lipids?

A

Hydrophobic tails so waterproof
More gram for gram energy than carbs
insoluble
Thermal insulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the structure of a triglyceride?

A

3 fatty acids connected to a glyceride with ester bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the properties of fibrous proteins?

A

Long parallel polypeptides
Very little tertiary/ quaternary structure
insoluble
Structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the properties of globular proteins?

A

Complex tertiary/ quaternary structure

Soluble

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which nucleotides are purines?

A

Adenine

Guanine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which nucleotides are pyrimidines?

A

Cytosine
Thymine
Uracil

17
Q

Describe semi-conservative replication

A

DNA helicase catalyses the unwinding of the double helix
Free nucleotides attach to complimentary bases on the anti-sense strand
Phosphodiester bonds are formed catalysed by DNA polymerase

18
Q

Describe protein synthesis

A

Transcription-
DNA uncoils catalysed by DNA helicase
Antisense strand used as template
Free nucleotides join up with complimentary base pairing- mRNA formed- RNA polymerase
mRNA moves out of nucleus and to a ribosome

Translation-
Complimentary anticodons of tRNA bind to mRNA- hydrogen bond
tRNA leaves strand after complimentary base triplets are attached to mRNA with peptid bonds
Repeated until a ‘stop’ codon is reached

19
Q

What is competitive inhibition?

A

The inhibitor binds to the active site of the enzyme- can be reversed by increasing substrate conc.

20
Q

What is non-competitive inhibition?

A

Inhibitor doesn’t bind to active site
Binds to different site and changes shape of enzyme
Substrate cannot bind to active site as shape has changed

Biology (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions