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Chapter 3

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What chemical elements proteins may have

Back (Answer)

Carbon, N,O, S, fe, Cu, P, zn

#2
Front (Question)

what is the name of the central atom

Back (Answer)

alpha-carbon

#3
Front (Question)

What groups serves as an acid and as a base in AAs

Back (Answer)

carboxyl group-acid amino-base

#4
Front (Question)

General formula for AAs

Back (Answer)

H2NCHRCOOH

#5
Front (Question)

What side chains are more soluble in water

Back (Answer)

Polar

#6
Front (Question)

what AAs will form hydrogen bonds with other molecules

Back (Answer)

Polar-neutral

#7
Front (Question)

What AAs can act as buffers

Back (Answer)

Positively and negatively charged

#8
Front (Question)

How many different proteins in the body ( estimate)

Back (Answer)

50000

#9
Front (Question)

How many AAs can be linked in a chain

Back (Answer)

20-33000

#10
Front (Question)

Essential AAs

Back (Answer)

Histidine Isoleucine Leuicine methionine Phenylalanine threonine tryptophan Valine Lysine

#11
Front (Question)

Non essential AAs

Back (Answer)

Alanine Asparagine Aspartic acid Glutamic acid Serine

#12
Front (Question)

Conditionally essential AAs

Back (Answer)

Arginine Cysteine Glutamine Glycine Proline Tyrosine

#13
Front (Question)

Complete protein

Back (Answer)

Animal protein: eggs, milk, meat

#14
Front (Question)

How can you get complete protein from plant sources

Back (Answer)

Combining incomplete proteins, such as beans and rice

#15
Front (Question)

What is the component in food that is responsible for aallergies

Back (Answer)

Proteins

#16
Front (Question)

Role of proteins in food

Back (Answer)

• Structure and physiochemical properties - an ingredient in terms of functional properties and nutritional value

#17
Front (Question)

Protein responsible for milk allergies

Back (Answer)

Beta-lactoglobulin

#18
Front (Question)

2 types of secondary structures

Back (Answer)

Alpha-helix Beta-pleated sheet

#19
Front (Question)

secondary structure of proteins are held together by

Back (Answer)

Hydrogen bonds

#20
Front (Question)

Proteins are folded in alpha and beta-pleated sheets , but other parts can be ___

Back (Answer)

Unordered or random

#21
Front (Question)

Beta-lactoglobulin acts as

Back (Answer)

A dimer

#22
Front (Question)

what can result in protein denaturation ( loss of secondary and/or tertiary structure)

Back (Answer)

pH, temperature, mechanical actions,sound waves and irradation, mineral salts (sodium or k salts)

#23
Front (Question)

How protein denaturation is used in food industry

Back (Answer)

Denaturation of protein-> denaturation of enzymes that are responsible for deterioration

#24
Front (Question)

How can you denature egg proteins

Back (Answer)

Solidification/opaqueness -. when heated , egg white turns white Production of foam when egg white is whipped is due to encapsulation of air bubbles by surface-denatured protein molecules