protein
Amino acids join into polypeptide chains. This topic is part of Biology within Science & Nature. This page currently draws on 78 supporting questions, with answers and bonus facts available below.
protein trivia questions
Proteins are built from smaller units called what?
Answer: Amino acids
Bonus fact: Amino acids join into polypeptide chains.
What type of bond joins amino acids together in proteins?
Answer: Peptide bond
Bonus fact: Peptide bonds form between amino and carboxyl groups.
Which level of protein structure describes the overall three-dimensional shape of a single polypeptide chain?
Answer: Tertiary structure
Bonus fact: Tertiary structure arises from interactions among amino acid side chains.
What protein network gives wheat bread dough much of its elasticity and ability to trap gas?
Answer: Gluten
Bonus fact: Gluten forms when wheat proteins interact with water and kneading.
What milk protein forms the curd structure in most cheesemaking?
Answer: Casein
Bonus fact: Casein proteins coagulate to form curds during cheesemaking.
What protein makes up most of a bird feather?
Answer: Keratin
Bonus fact: Feathers are composed mainly of beta-keratin.
Which protein makes up most of the protein in cow's milk?
Answer: Casein
Bonus fact: Casein makes up roughly four-fifths of the protein in cow's milk.
Which enzyme in pineapple can break down proteins?
Answer: Bromelain
Bonus fact: Bromelain is a mixture of protein-digesting enzymes.
What protein is the most abundant in chicken egg white?
Answer: Ovalbumin
Bonus fact: Ovalbumin makes up more than half of the protein in egg white.
Collagen is a major structural protein in skin, bones, and what?
Answer: Connective tissues
Bonus fact: Collagen provides strength to many tissues.
What protein helps make the outer epidermis tough and water resistant?
Answer: Keratin
Bonus fact: Keratin is abundant in the outer skin.
Gelatin is produced by processing what structural protein?
Answer: Collagen
Bonus fact: Heating collagen-rich tissues produces gelatin.