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biomolecules > Biomolecules > Flashcards

Biomolecules Flashcards

1
Q

What color will a positive Biurets test change to?

A

purple

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2
Q

What is the monomer of lipids?

A

fatty acids and glycerol

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2
Q

Which biomolecule does Benedicts test for?

A

simple carbohydrates / sugars

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2
Q

The process in which monomers are joined togher and in turn, a water molecule is created.

A

dehydration synthesis

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3
Q

What color will a positive Benedicts test change to?

A

red, orange, yellow or green (red has the highest amount, green the least)

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4
Q

In a food web, the herbivores (plant eaters) are the first level consumers. What level are the carnivores if they eat the herbivores?

A

secondary/ second level

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5
Q

Which biomolecule does Lugols (iodine) test for?

A

complex carbohydrates / starches

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6
Q

What is the monomer of nucleic acids?

A

nucleotides

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6
Q

Which biomolecule makes up the cell wall?

A

lipids

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7
Q

Which type of fatty acid, saturated or unsaturated is shown below?

A

satturated

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8
Q

What is the monomer of carbohydrates?

A

saccharides/monosaccharides

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8
Q

What is the monomer of nucleic acids?

A

nucleotides

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9
Q

What is the function of carbohydrates?

A

provide a QUICK source of energy, provide structural support

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10
Q

In a scientific experiment, which variable is intentionally changed by the experimenter? the independent, the dependent, or the control?

A

independent

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12
Q

Which biomolecule is shown below?

A

fatty acid

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13
Q

Which biomolecule is shown below?

A

amino acid

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14
Q

What is used to test for lipids?

A

a brown paper bag

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15
Q

Which biomolecule does Biurets test for?

A

proteins

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17
Q

What happens to enzymes once they act on the substrate?

A

Nothing, they remain unchanged and move on to act on the next substrate

18
Q

All organic matter contains which element?

A

Carbon

19
Q

An entomologist (bug scientist) wants to determine if temperature changes how many times a cricket chirps. What is the independent variable?

A

temperature

20
Q

Protease, maltase,kinase and amylase are all examples of

A

enzymes

21
Q

What is the monomer of proteins?

A

amino acids

23
Q

Which biomolecule is shown below?

A

saccharide or monosaccharide

24
Q

Which letter represents the substrate?

A

A

25
Q

What process is responsible for splitting a polymer by adding a water molecule?

A

dehydration synthesis

27
Q

Which biomolecue is shown below?

A

nucleotide

28
Q

What is the function of lipids?

A

store energy long term, insulation

29
Q

In the food web below, identify the quateranary consumer (fourth level).

A

the owl

29
Q

The portion of an enzyme where substrate molecules bind

A

active site

30
Q

What is the image below showing?

A

Disaccharide

32
Q

You want to see if playing music makes plants grow taller. What is the independent variable in this experiement?

A

playing music

33
Q

Which type of biomolecule are enzymes?

A

all enzymes are proteins (but not all proteins are enzymes)

34
Q

What would happen to the amount of carbon in the air if all trees and plants were cut down?

A

it would increase. There would not be any plants using atmospheric carbon for photosynthesis.

35
Q

What color will a positive Lugol’s test change to?

A

black

36
Q

The only biomolecule that contains phsophorus.

A

Nucleic Acids

37
Q

What is the function of nucleic acids?

A

store genetic information

38
Q

Which letter represent the enzyme?

A

B or D

39
Q

What is the function of proteins?

A

function is determined by shape, but overall, to build and repair

40
Q

This is the pyramid of energy, only 10% of the total energy transfers from one level to the next. What happens to the other 90%?

A

The organisms in that level use it to grow and stay alive.

41
Q

Which biomolecule has an R-group?

A

Proteins

42
Q

Which biomolecule ends in -ose?

A

simple carbohydrates (sugars)

43
Q

In a scientific experiment, the variable that we are measuring is called the

A

dependent variable

44
Q

Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to check this this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of “treatment” there is no change in the appearance of the green slime on either side of the shower. WHAT IS THE CONTROLLED VARIABLE?

A

the side of the shower he sprayed with water

45
Q

You want to measure the effect of different amounts of oxygen on the rate of yeast growth. What is the dependent variable?

A

rate of yeast growth

biomolecules (1 decks)

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