PROTEINS

Question 1

• Any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms.

Answer 1

PROTEINS

Question 2

Large complex organic compounds composed of amino acids as the building units linked together in peptide bond.

Answer 2

PROTEINS

Question 3

Very important molecules in our cells and are essential for all living organisms.

Answer 3

PROTEINS

Question 4

Most abundant organic molecules of the living system.

Answer 4

PROTEINS

Question 4

The central role of proteins as enzymes in living organisms was however not fully appreciated until

Answer 4

1926

Question 4

What are the 5 maintenance of life processes

Answer 4

 Communication (nerves)
 Defense (antibodies)
 Metabolic regulation (hormones)
 Biochemical catalyst (enzymes)
 Oxygen transport (hemoglobin)

Question 4

Swedish chemist that coined the term protein while attempting to apply a dualistic organic chemistry to the constituents of living things.

Answer 4

Jöns Jacob Berzelius (1838)

Question 5

Originated from a Greek word “proteios” means

Answer 5

“to hold first place” or “is of prime importance”

Question 5

he supposed that all albuminous substances consists of radical compound (protein) of carbon, hydrogen, nitrogen, and oxygen, in combination with varying amounts of sulfur and phosphorus.

Answer 5

PROTEINS THEORY 1838

Question 5

Proteins were first described by the Dutch chemist

Answer 5

Gerardus Johannes Mulder.

Question 6

Berzelius also characterized and named two new concepts:

Answer 6

“isomerism” and “catalysis”

Question 6

Early nutritional scientists believed that “protein is the most important nutrient for maintaining the structure of the body”

Because it was generally believed that “flesh makes flesh”

Answer 6

German Carl von Voit

Question 7

first who sequenced insulin (1958)

Answer 7

Frederick Sanger

Question 8

showed that the enzyme urease was in fact a protein

Answer 8

James B. Sumner

Question 9

Who found that this protein is actually made up of _____________ by ___________

Answer 9

Frederick Sanger & two amino acid chains linked together by disulphide bonds

Question 10

Austrian – born British molecular biologist who determined the structure (sequencing) of hemoglobin.

Answer 10

Max Perutz 1958

Question 11

British biochemist who determined the three dimensional structure (sequencing) of the muscle protein myoglobin, which stores oxygen in muscle cells.

Answer 11

Sir John Cowdery Kendrew, in 1958

Question 12

What stores oxygen in muscle cells

Answer 12

Myoglobin

Question 12

The three dimensional structures of both proteins were first determined by

Answer 12

X-ray diffraction analysis.

Question 13

Non – destructive tools to analyze all kinds of matter from ________ to _______.

Answer 13

fluids to crystals

Question 14

_______ and _______ shared the 1962 Nobel Prize in Chemistry for these discoveries.

Answer 14

Perutz and Kendrew

Question 15

IMPORTANCE OF PROTEINS

Answer 15

• Major structural component of animal tissues.
• Involved in the maintenance of life processes
• Utilized in the building of new tissues and maintaining tissues which are already developed.

Question 16

Communication

Answer 16

NERVES

Question 17

Metabolic regulation

Answer 17

HORMONES

Question 17

Defense

Answer 17

ANTI - BODIES

Question 18

Biochemical catalyst

Answer 18

ENZYMES

Question 19

Oxygen transport

Answer 19

HEMOGLOBIN

Question 20

all albuminous substances consists of

Answer 20

radical compound (protein) of carbon, hydrogen, nitrogen, and oxygen

Question 21

composed of one or more long chains of amino acids

Answer 21

PROTEINS

Question 22

Provides structures and support for cells

Answer 22

PROTEINS