WorksheetsCatabolism of Amino Acid Nitrogen
Total questions: 25
Worksheet time: 13mins
Amino Acids have an alpha carbon (α-carbon) which is attached to 4 different groups. Which of the following is not a group that is attached to the alpha carbon?
Amino Group
Carboxyl Group
R Group
Hydrogen Atom
Hydroxyl Group
Which group on the amino acid side chain dictates the function of the formed amino acid?
R group
Amine group
Carboxyl group
Hydrogen atom
Which gas is produced in the catabolism of amino acids?
Oxygen
Nitrogen
Methane
Helium
What is the function of the Carbon portion in amino acid degradation?
Energy source
Transamination
Building block
Synthesis
What happens to the Nitrogen portion of an amino acid during degradation?
Energy source
Transamination
Building blocks
Synthesis
Phenylalanine is used to synthesize which of the following?
Tyrosine
Asparagine
Proline
Serine
Methionine donates a sulfur atom to form which of the following Amino Acid
Cysteine
Tyrosine
Serine
Aspartate
How many Amino Acids are considered essential?
9
11
12
8
Which of the following is a Non-essential amino acid?
Aginine
Tryptophan
Methionine
Tyrosine
Which amino acid is considered as both an essential and non-essential amino acid?
Tryptophan
Arginine
Histidine
Isoleucine
These are known as the inactive forms of proteases and act as the precursors of smaller active enzymes
Zymogens
Chromogens
Micelles
Parietal cells
If pepsin is a digestive enzyme that originates from the stomach, where does trypsin originate from?
Stomach
Pancreas
Small intestine
Large intestine
Digestive Enzymes digest themselves as well as dietary proteins. Digestive enzymes cannot digest intestinal cells that originate from the lumen
Statement 1 is correct
Statement 2 is correct
Both are correct
Both are false
By which transport system does the absorption of amino acids follow?
Secondary-dependent transport system
Primary-dependent transport system
Active transport
Osmotic pressure
Amino acids depend on which ion for transport into cells?
Potassium
Sodium
Calcium
Chloride
During the "Fed State" excess in degraded component amino acids are converted into what and store where?
Lipids, Adipose tissue
Glycogen, Liver
Bile Salts, Gall bladder
Mavelonic acid, Pancreas
During the "Fasting state" what is released from adipose tissue to be used as a substrate in gluconeogenesis?
Glycerol
Glucose
Glycogen
ATP
Transamination reactions are irreversible
True
False
Which of the following amino acids do NOT undergo transamination?
Threonine
Lysine
Isoleucine
Tryptophane
Activated Vitamin B6 is scientifically known as:
Pyridoxal Phosphate
Hydroxyal Phosphate
Transaminase Phosphate
Pyridoxamine Phosphate
Which substance provides nitrogen for transamination or Oxidative deamination?
Glutamate
Glycerol
Glucagon
Glucose
The rate limiting step of the Krebs-Henseleit cycle is found where?
Cytosol
Endoplasmic reticulum
Mitochondria
Ribosome
Which of the following are structurally part an amino acid, but is not included in the 20 amino acids list?
Ornithine
Citrulline
Arginosuccinate
Fumarate
This is the carbon backbone of fumarate
Aspartate
Asparagine
Citrulline
Arginine
During fasting state this is the main amino acid substrate for urea
Arginine
Alanine
Asparagine
Aspartate
