Biology 106 Final Exam Review

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Questions and Answers

What holds the atoms together in an ionic bond?

Sharing of electrons between atoms
Presence of hydrogen bonds
Transfer of electrons between atoms (correct)
Absence of protons in the bond

Which element(s) is/are found in all organic molecules?

Oxygen and nitrogen
Sodium and chlorine
Carbon and hydrogen (correct)
Phosphorus and sulfur

What are the building blocks of proteins?

Glucose molecules
Fatty acids
Nucleotides
Amino acids (correct)

What is the defining characteristic of prokaryotic cells?

Absence of a nucleus (D) Signup and view all the answers

Where does the light reaction of photosynthesis occur within the cell?

Thylakoid membranes of chloroplasts (B) Signup and view all the answers

What is the function of the Golgi apparatus?

Modifying, sorting, and packaging proteins and lipids for secretion (C) Signup and view all the answers

Explain the difference between diffusion and osmosis.

Diffusion refers to the movement of solute molecules within a solution, while osmosis refers to the movement of water across a semi-permeable membrane. (D) Signup and view all the answers

Describe the light reaction of photosynthesis. What are the reactants and products?

Reactants: Sunlight, water, and NADP+; Products: ATP, NADPH, and oxygen (B) Signup and view all the answers

Explain the processes of dehydration synthesis and hydrolysis with respect to organic molecules.

Dehydration synthesis builds complex organic molecules from simpler units by removing water, while hydrolysis breaks down complex organic molecules into simpler units by adding water. (D) Signup and view all the answers