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Honors Biology Chapter 2 Questions with Complete Solutions What is the function of nucleic acids in cells? Nucleic acids store and transmit genetic information, with DNA carrying the genetic blueprint and RNA playing a role in protein synthesis. What is a peptide bond? A peptide bon...

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  • September 15, 2024
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Honors Biology Chapter 2 Questions
with Complete Solutions

What is the function of nucleic acids in cells?


✔✔ Nucleic acids store and transmit genetic information, with DNA carrying the genetic

blueprint and RNA playing a role in protein synthesis.




What is a peptide bond?


✔✔ A peptide bond is a covalent bond formed between the amino group of one amino acid and

the carboxyl group of another, linking amino acids in proteins.




How do carbohydrates contribute to cellular energy?


✔✔ Carbohydrates are broken down into glucose, which is used in cellular respiration to

produce ATP, the main energy source for cells.




What is the difference between prokaryotic and eukaryotic cells in terms of genetic material?


✔✔ Prokaryotic cells have their genetic material in a nucleoid region without a membrane, while

eukaryotic cells have their genetic material enclosed within a nucleus.




1

,What is the role of the phospholipid bilayer in cell membranes?


✔✔ The phospholipid bilayer forms a selective barrier that regulates the movement of

substances in and out of the cell.




What is an isomer?


✔✔ Isomers are compounds with the same molecular formula but different structures and

properties.




What is the role of ATP in metabolism?


✔✔ ATP provides the energy required for various metabolic processes, including synthesis of

macromolecules and cellular work.




How does the structure of water contribute to its properties?


✔✔ The polar nature of water molecules leads to hydrogen bonding, which gives water its

unique properties such as high cohesion, high specific heat, and solvent abilities.




What are the different types of lipids, and their functions?


✔✔ The main types of lipids are fats (triglycerides) for energy storage, phospholipids for cell

membrane structure, and steroids for signaling.

2

, What is a hydrolysis reaction?


✔✔ A hydrolysis reaction involves the breaking of a bond in a molecule using water, often used

to break down macromolecules into their monomers.




What are the four main types of macromolecules found in living organisms?


✔✔ The four main types are carbohydrates, lipids, proteins, and nucleic acids.




What is the basic unit of carbohydrates?


✔✔ The basic unit of carbohydrates is a monosaccharide.




What role do enzymes play in biological reactions?


✔✔ Enzymes act as catalysts to speed up biochemical reactions by lowering the activation

energy.




What is the primary function of lipids in the body?


✔✔ Lipids primarily function as long-term energy storage and as important components of cell

membranes.



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