Activity 9

Question 1

Activity no. 9 Title

Answer 1

Estimation of Total Flavonoids in Methanolic Solution of Crude Plant Extract

Question 2

____ are present in all parts of the plant. A number of medicinal plants have been found to have (answer)

Answer 2

Flavonoids

Question 3

Flavonoids are present in (4)

Answer 3

Fruit

Roots

Leaves

Outer Skin of the Stem

Question 4

medicinal plant activities as associated with flavonoids (5)

Answer 4

Antioxidant

Antibacterial

Antiviral

Anti-allergic

Anticancer

Question 5

This activity aims to determine the flavonoids level in ___ of ___.

Answer 5

Methanolic solution

Crude plant extract

Question 6

Solutions being tested (2) 200 uL

Answer 6

MX3 Capsule Methanolic Solution

Cucumber Leaf Extract Methanolic Solution

Question 7

Chemicals used (2) Both 100 uL

Answer 7

Aluminum Chloride AlCl3 1%

Sodium Acetate 1M

Question 8

Amount of 100 ppm Quercetin added (uL)

Answer 8

100

200

300

400

500

Question 9

Used to dilute the solution to final volume

Answer 9

Methanol

Question 10

Incubate in 5 minutes and then measure the absorbance at ___ using the ____

Answer 10

454 nm

Double Beam UV-Visible Spectrophotometer