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KSSM FORM 4 BIOLOGY
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A peptide bond is formed between _____________.
carboxyl group of an amino acid and an amino group of another amino acid
Essential amino acids are the amino acids that cannot be synthesized by human bogy and must be obtained from food. TRUE or FALSE
TRUE
Proteins also form building blocks such as __________ in muscle tissues.
myosin
Protein also form building block such as _____ in the skin/hair..
keratin
Various types of polypeptide molecules can be formed from the 20 types of amino acids. This is because each type of protein differs in terms of the ____________________ in its polypeptide chain.
amino acid sequence
Explain the breakdown of dipeptides.
Each dipeptide can be broken down into an amino acid through hydrolysis, with addition of water
Explain the formation of dipeptides.
Dipeptides are composed of two amino acid molecules which are linked together by a peptide bond through the condensation process. In this process, one water m
Write the word equation for the breakdown of dipepties.
Write the word equation for the formation of dipeptides.
Proteins are used to ________________.
Build new cells/ Repair damaged tissues / Synthesis of enzymes, hormones, antibodies and haemoglobin
There are about ____ types of amino acids present naturally.
20
Each dipeptide can be broken down into an amino acid through _________.
Hydrolysis
Amino acids are linked together through the __________ process.
condensation
_____________ is composed of one or more polymers knowns as polypeptides.
Protein
____________ is formed when many amino acids chained together through condensation process.
Polypeptides
____________ is formed when two amino acids linked together by peptide bond through condensation process.
Dipeptides
______________are the monomers of the protein.
Amino acids
Proteins are organic substances that consists of elements ?
carbon, hydrogen, oxygen, nitrogen, sulphur, and phosphorus
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