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Questions and Answers
What is biochemistry?
What is biochemistry?
The study of biology at a molecular level.
Which of the following is a type of biological molecule responsible for energy storage and structural components?
Which of the following is a type of biological molecule responsible for energy storage and structural components?
- Nucleic acids
- Carbohydrates (correct)
- Water
- Proteins
Lipids are only found in fat form.
Lipids are only found in fat form.
False (B)
What are proteins used for?
What are proteins used for?
What is the most important component of many reactions that form biomolecules?
What is the most important component of many reactions that form biomolecules?
What do nucleic acids form?
What do nucleic acids form?
What do enzymes do?
What do enzymes do?
Covalent bonds are formed when atoms share ______ to stabilize.
Covalent bonds are formed when atoms share ______ to stabilize.
Carbon can form only single covalent bonds.
Carbon can form only single covalent bonds.
How many electrons must carbon share to stabilize?
How many electrons must carbon share to stabilize?
The types of covalent bond where atoms share multiple electrons are called ______.
The types of covalent bond where atoms share multiple electrons are called ______.
Study Notes
Introduction to Biochemistry
- Biochemistry explores biology at the molecular level, emphasizing the significance of chemical molecules in biological processes.
- Key focuses include understanding the relationships between structure and function of biomolecules.
Biological Molecules
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Carbohydrates
- Vital for life, used for energy storage and supply.
- Structurally important in forms such as cellulose.
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Lipids
- Include fats, oils, cholesterol, and steroids.
- Role in cellular membranes, insulation, protection, and as a minor energy source.
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Proteins
- Serve various functions including transport and structural roles.
- Constitutive of enzymes, hormones, antibodies, and haemoglobin.
-
Water
- Essential for life, involved in metabolic reactions.
- Key structural component in plants and a critical part of animal diets.
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Nucleic Acids
- Responsible for DNA and RNA formation, consisting of nucleotides.
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Enzymes
- Specialized proteins that catalyze metabolic reactions across living organisms.
Chemistry Basics
- Focus on organic chemistry, where most biomolecules are carbon-based (excluding water, which is H2O).
- Understanding chemical bonding is crucial for grasping the stability and function of biomolecules.
Chemical Bonds
-
Covalent Bonds
- Formed when atoms share electrons, stabilizing the atom.
- Carbon can form four covalent bonds due to having four outer electrons.
-
Double Bonds
- Atoms can share multiple electrons to stabilize themselves.
- Common examples include carbon-carbon (C=C) and carbon-oxygen (C=O) double bonds.
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Description
This quiz covers key concepts in biochemistry, focusing on the structure and function of biological molecules such as carbohydrates, lipids, proteins, water, nucleic acids, and enzymes. Understanding these components is essential for grasping the molecular basis of life processes. Test your knowledge on the roles and characteristics of these biomolecules.
