Biology: Unit 1 Enzymes And Macromolecules

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1. What is an isomer?

Explanation

Isomers are compounds that have the same simple formula but differ in their structural arrangements of atoms.

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About This Quiz
Biology: Unit 1 Enzymes And Macromolecules - Quiz

Explore the critical roles of enzymes and macromolecules in biological processes. This assessment enhances understanding of biochemical interactions and their applications in biological systems, essential for students and... see moreprofessionals in the field of biochemistry. see less

2. What is a Monomer?

Explanation

A monomer is a simple subunit that can join together with other monomers to form larger molecules known as polymers. Examples of monomers include glucose and fructose.

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3. What is a polymer?

Explanation

A polymer is made up of repeating units called monomers, which are like individual bricks in a wall. These monomers can be simple molecules like sucrose or carbohydrates, which bond together to form the polymer structure.

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4. What is condensation?

Explanation

Condensation is the process where water molecules come together to form bonds, often resulting in the formation of liquid water. It is the opposite of evaporation, where water molecules break apart from each other.

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5. What is hydrolysis?

Explanation

Hydrolysis is a chemical reaction where water is added to break apart molecules or compunds into smaller subunits. The process involves cleaving bonds by adding water molecules.

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6. When Condensation occurs between fructose and glucose it creates...

Explanation

When fructose and glucose undergo condensation, they combine to form sucrose, which is commonly known as cane sugar. This compound is classified as a disaccharide due to the fact that it is composed of two monosaccharide units. The other options provided do not accurately represent the result of condensation between fructose and glucose, as they form different types of sugars with varying structures and compositions.

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7. What is a monosaccharide?

Explanation

A monosaccharide is the simplest form of sugar, consisting of a single sugar molecule. Examples include fructose and glucose.

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8. What is a disaccharide?

Explanation

A disaccharide is formed when two monosaccharides join together through a condensation reaction, often resulting in the formation of a glycosidic bond.

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9. What is a polysaccharide?

Explanation

Polysaccharides are large carbohydrates composed of many monosaccharide subunits. They play key roles in energy storage and structural support in living organisms.

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10. What type of macromolecule is cellulose?

Explanation

Cellulose is a complex carbohydrate made up of chains of glucose molecules, making it a polysaccharide.

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11. What is the backbone of lipids and what bond does it have?

Explanation

Lipids are composed of a glycerol backbone with three fatty acids attached through ester bonds. Proteins are made of amino acids, carbohydrates are composed of sugars, and nucleic acids contain nucleotides, and they do not serve as the backbones of lipids.

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12. What characteristic defines unsaturated fats?

Explanation

Unsaturated fats are fats that have double bonds in their fatty acid chains, making them liquid at room temperature and primarily found in plant-based sources. Contrary to saturated fats, they are considered healthier for the heart.

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13. What is a characteristic of saturated fats?

Explanation

Saturated fats contain only single bonds because the carbons are completely 'saturated' with hydrogen's, leading to a solid state at room temperature. They are commonly found in animal products.

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14. What are proteins?

Explanation

Proteins are large complex polymers made up of amino acids and contain nitrogen, hydrogen, sulfur, oxygen, and carbon. They play a crucial role in the structure and functioning of cells and tissues.

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15. What are amino acids?

Explanation

Amino acids are the fundamental units that make up proteins, essential for various biological processes in the body.

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16. What are peptide bonds?

Explanation

Peptide bonds are the covalent bonds formed between amino acids during protein synthesis. They are essential for linking amino acids together in a specific sequence to form a protein chain.

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17. What are enzymes?

Explanation

Enzymes are biological molecules that act as catalysts to speed up chemical reactions without being consumed in the process. They do not store genetic information, regulate communication, or provide structural support.

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18. What is the variable and amino group?

Explanation

In biochemistry, the variable group (R) represents any side chain that makes each amino acid unique, while the amino group (NH2) is a functional group containing nitrogen and hydrogen that is present in all amino acids.

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19. What is the primary structure of proteins?

Explanation

The primary structure of proteins refers to the linear sequence of amino acids in a protein, represented by abbreviations with three letters. This sequence determines the overall structure and function of the protein.

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20. What is the secondary structure of proteins?

Explanation

The secondary structure of proteins specifically refers to the arrangement of chains about an axis.

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21. What does the term 'Tertiary Structure' refer to in proteins?

Explanation

Tertiary structure of a protein refers to the three-dimensional arrangement of amino acids that make up the protein, resulting in its unique globular shape.

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22. What does the quaternary structure of proteins refer to?

Explanation

The quaternary structure of proteins refers to the spatial arrangement of multiple protein subunits in a functional protein complex, such as the four units of hemoglobin packed together.

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23. What is the function of nucleic acid?

Explanation

Nucleic acids, such as DNA and RNA, primarily function to store cellular information in the form of a code. This information is essential for various cellular processes. Nucleic acids are not directly involved in providing energy to cells, aiding in muscle movement, or regulating body temperature and fluid balance.

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24. What are nucleotides composed of?

Explanation

Nucleotides are complex molecules made up of three components - a base, a sugar, and a phosphate group. Each part plays a crucial role in the structure and function of nucleotides.

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25. What are organic compounds?

Explanation

Organic compounds are molecules composed of carbon, hydrogen, and other elements. They are the building blocks of life and are found in living organisms. This distinguishes them from inorganic compounds, which do not contain carbon-hydrogen bonds.

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26. What are examples of inorganic compounds?

Explanation

Inorganic compounds are substances that do not contain carbon-hydrogen bonds, which is why rocks, metals, and minerals are considered inorganic. Water and carbon dioxide, on the other hand, are organic compounds because they contain carbon-hydrogen bonds. Plants and animals are also organic compounds due to their complex carbon structures.

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27. What are carbohydrates composed of?

Explanation

Carbohydrates are composed of carbon, hydrogen, and oxygen. They include sugars, starch, and cellulose, and play a vital role in providing energy for cells and in plant structures.

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28. What are lipids composed of?

Explanation

Lipids are primarily composed of carbon, hydrogen, oxygen, and phosphorus, not proteins, nucleic acids, iron, magnesium, calcium, or sodium.

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29. What elements make up proteins?

Explanation

Proteins are made up of specific elements like Carbon, Hydrogen, Oxygen, Nitrogen, and Sulfur. The incorrect answers provided do not align with the elemental composition of proteins.

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30. What elements are present in nucleic acids?

Explanation

Nucleic acids are made up of carbon, hydrogen, oxygen, nitrogen, and phosphorous. They include DNA and RNA, and their main function is to carry hereditary information and make proteins.

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What is an isomer?
What is a Monomer?
What is a polymer?
What is condensation?
What is hydrolysis?
When Condensation occurs between fructose and glucose it creates...
What is a monosaccharide?
What is a disaccharide?
What is a polysaccharide?
What type of macromolecule is cellulose?
What is the backbone of lipids and what bond does it have?
What characteristic defines unsaturated fats?
What is a characteristic of saturated fats?
What are proteins?
What are amino acids?
What are peptide bonds?
What are enzymes?
What is the variable and amino group?
What is the primary structure of proteins?
What is the secondary structure of proteins?
What does the term 'Tertiary Structure' refer to in proteins?
What does the quaternary structure of proteins refer to?
What is the function of nucleic acid?
What are nucleotides composed of?
What are organic compounds?
What are examples of inorganic compounds?
What are carbohydrates composed of?
What are lipids composed of?
What elements make up proteins?
What elements are present in nucleic acids?
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