practical unit 4

Question 1

examples of protein functions

Answer 1

structural support

transport

signaling

catalytic roles

Question 2

what was the detection reagent used to identify protein in a solution and what color does it turn in the presence of proteins?

Answer 2

bradford reagent

dark blue = high protein concentration

Question 3

describe the electromagnetic spectrum

Answer 3

radio, microwave, infrared, visible, UV, x-ray, gamma

long wavelength ————————> short wavelength

Question 4

transmission vs absorbance

Answer 4

inversely related… if block blocks 10% of light passing through the the T% is 90%

Question 5

relationship between wavelength, energy, frequency

Answer 5

short wavelength = high energy = high frequency

Question 6

what does a blank tube obtain?

Answer 6

all reagents except the molecule of interest