chemical basis of life

In the presence of albumin, the color of ........ reagent turns into violet.

• Sudan 4-reagent

• Iodine

• Biuret

• Benedict

It is used in building the proteins which the cell needs.

• DNA

• Nucleotide

• Guanine

• RNA

Tags

NGSS.HS-LS1-1

catabolism is breaking chemical bonds between atoms for building more complex substances.

• True

• False

Tags

NGSS.HS-LS1-7

Enzymes are affected by changing pH ; bec. .......

• they're protein substances that are affected by carboxyl and amino groups.

• enzymes are sensitive to thermal changes.

• acids are stronger than bases

Most enzymes work at pH value equals 7.4

• True

• False

Trypsin enzyme works in the stomach at pH value ranging from (7.5 : 8)

• True

• False

from simple proteins

• Casein

• Albumin

• Thyroxine

• Haemoglobin

Tags

NGSS.HS-LS1-6

choose all that are correct: amino acids are carbon atoms attached to :-

• 2 Functional groups

• Phosphate group

• Alkyl group

• Hydrogen

• Oxygen

Tags

NGSS.HS-LS1-6

....... Works as hormones

• Carbohydrates

• amino acids

• lipids

• vitamins

Tags

NGSS.HS-LS1-3

choose all that are right :

• Disaccharides

• Maltose

• Glucose

• Fructose

• Sucrose

• Ribose