Intro to Biomolecules Flashcards

Emily

1
Q

Ionic bonds - example

A

Electrostatic attraction –> solubility

- e.g. NaCl

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2
Q

Covalent bonds - example

A

Strong –> determines shape

- e.g. proteins

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3
Q

Van der Waals - example

A
  • ve dipole repels e-s in neighbouring –> determines how close atoms can get
  • e.g. H bond
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4
Q

Hydrogen bonds - example

A

Between H and N/O/F

- e.g. solubility, coolant

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5
Q

Saturated fats

A

More rigid –> more solid at room temp –> assoc. w heart disease

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6
Q

Triacyl glycerol = energy store as…

A

Glyerol –> into glucose

Fatty acids –> acetyl CoA

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7
Q

Amphipathic

A

When hydrophobic AND hydrophilic

- fatty acids can be

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8
Q

Steroid structure

A

4 fused C rings w different functional groups

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9
Q

Cholesterol

  • what
  • function
  • inhibited by
A
  • Most commonly synthesised steroid
  • Building blocks for other
  • Inhibited by statins
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10
Q

Amino acids are acidic due to…

A

Carboxyl group

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11
Q

Nucleotide structure

A

Nitrogen ring & 5-C sugar (ribose OR deoxyribose) & phosphate group

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12
Q

Nucleotide examples x4

A

ATP, DNA, NAD, CoA

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13
Q

Function of carbohydrates

- & example

A

Chains for energy store

- e.g. glycogen in liver, muscles

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14
Q

Function of proteins

- & example

A

Polypeptide chains

- e.g. enzymes

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15
Q

3D structure more stable if…

A

Better at burying hydrophobic & exposing hydrophilic

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16
Q

Sugars & immune response

A

Different blood groups –> different sugars buried in lipids on rbc surface

17
Q

HypERtonic solution

A

Higher solute concentration

18
Q

If higher osmolarity outside…

A

Water OUT –> cell shrinks (crenation, plasmolysis)