Podcast
Questions and Answers
Which enzyme deficiency may lead to Phenylketonuria?
Which enzyme deficiency may lead to Phenylketonuria?
Which enzyme catalyzes the synthesis of urea in the urea cycle?
Which enzyme catalyzes the synthesis of urea in the urea cycle?
From which amino acid is the neurotransmitter 5-hydroxytrptamine derived?
From which amino acid is the neurotransmitter 5-hydroxytrptamine derived?
What is the significant source of stored energy in the human body?
What is the significant source of stored energy in the human body?
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Which enzyme catalyzes the synthesis of Prostaglandins?
Which enzyme catalyzes the synthesis of Prostaglandins?
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Which enzyme is involved in the synthesis of tyrosine from Phenylalanine?
Which enzyme is involved in the synthesis of tyrosine from Phenylalanine?
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What is the enzyme involved in the entry of long chain fatty acids into mitochondria?
What is the enzyme involved in the entry of long chain fatty acids into mitochondria?
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What is the structural component of glutathione?
What is the structural component of glutathione?
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Which hormone is a polypeptide in nature and not a steroid hormone?
Which hormone is a polypeptide in nature and not a steroid hormone?
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What is the precursor of vitamin niacin?
What is the precursor of vitamin niacin?
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Study Notes
Enzyme Deficiencies and Their Effects
- Deficiency of Phenylalanine hydroxylase leads to Phenylketonuria (PKU), causing accumulation of phenylalanine.
Urea Cycle
- Carbamoyl phosphate synthetase is the enzyme that catalyzes the synthesis of urea, converting ammonia and bicarbonate into carbamoyl phosphate.
Neurotransmitter Biosynthesis
- 5-Hydroxytryptamine (serotonin) is derived from the amino acid tryptophan.
Energy Storage
- The significant source of stored energy in the human body is triglycerides, primarily stored in adipose tissue.
Prostaglandin Synthesis
- Cyclooxygenase (COX) enzymes are responsible for the synthesis of prostaglandins from arachidonic acid.
Amino Acid Conversion
- The synthesis of tyrosine from phenylalanine is catalyzed by the enzyme phenylalanine hydroxylase.
Fatty Acid Metabolism
- The entry of long-chain fatty acids into the mitochondria is facilitated by the enzyme carnitine acyltransferase.
Structural Components
- Glutathione is composed of three amino acids: glutamate, cysteine, and glycine.
Hormonal Classification
- Insulin is an example of a polypeptide hormone, distinguishing it from steroid hormones.
Vitamin Precursor
- The precursor of vitamin niacin (B3) is tryptophan, which can be converted into niacin in the body.
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Description
Test your knowledge of biochemical pathways with this quiz. Questions cover topics such as the synthesis of tyrosine, urea cycle reactions, and the role of enzymes in metabolic disorders.
