Semester 1 Exam HON

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is the role of NaOH in a chemical reaction?

Back

NaOH, or sodium hydroxide, is a strong base used to neutralize acids and adjust pH levels in solutions.

Front

What should you do if you do not understand a lab procedure?

Back

You should ask the instructor before proceeding to ensure safety and understanding.

Front

What is a monomer?

Back

A monomer is a small molecule that can join together with other similar molecules to form a polymer, such as fatty acids in fats and oils.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are organelles that synthesize proteins by translating messenger RNA (mRNA) into amino acid sequences.

Front

What are nucleic acids?

Back

Nucleic acids, such as DNA and RNA, are biopolymers essential for all known forms of life, composed of nucleotide monomers.

Front

What elements are primarily found in nucleic acids?

Back

Nucleic acids are primarily composed of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P).

Front

What is the difference between an acid and a base?

Back

Acids donate protons (H+) in a solution, while bases accept protons or donate hydroxide ions (OH-).

Front

What is the significance of the endoplasmic reticulum in protein synthesis?

Back

The endoplasmic reticulum (ER) is involved in the synthesis and processing of proteins, with ribosomes often attached to its surface.

Front

How does the pH of a solution affect chemical reactions?

Back

The pH of a solution can influence the rate and outcome of chemical reactions, as it affects the ionization of reactants.