Proteins (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which four main elements do proteins contain?
Which four main elements do proteins contain?
Carbon, hydrogen, oxygen, nitrogen
How many common amino acids do all living things use to make proteins?
How many common amino acids do all living things use to make proteins?
20
What part of an amino acid makes each one unique?
What part of an amino acid makes each one unique?
The R group (side chain)
How many essential amino acids must humans obtain from their diet?
How many essential amino acids must humans obtain from their diet?
9
What are peptides?
What are peptides?
Short chains of up to 50 amino acids
How many amino acids must be joined in a chain to form a protein?
How many amino acids must be joined in a chain to form a protein?
Over 200
What is the main characteristic of fibrous proteins?
What is the main characteristic of fibrous proteins?
Little folding, forming long fibres
Which protein is a fibrous protein found in hair, nails and feathers?
Which protein is a fibrous protein found in hair, nails and feathers?
Keratin
What shape do globular proteins have?
What shape do globular proteins have?
Compact, rounded 3-D shapes
Can proteins be stored in the body?
Can proteins be stored in the body?
No, they cannot be stored
Which foods are good sources of protein?
Which foods are good sources of protein?
Meat, fish, eggs, nuts, beans
What is one role of antibodies in the body?
What is one role of antibodies in the body?
Destroy viruses and bacteria