Chapter 7 Chemistry And Biochemistry Flashcards
What is the definition of chemistry?
Chemistry is the science that studies the composition, structure, properties, and changes of matter.
True or False: Biochemistry is the study of chemical processes within and related to living organisms.
True
Fill in the blank: The basic unit of matter is called a ______.
atom
What are the three states of matter?
Solid, liquid, and gas.
What is an ion?
An ion is an atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.
Multiple Choice: Which of the following is a property of acids? A) Bitter taste B) Sour taste C) Slippery feel
B) Sour taste
What is pH a measure of?
pH is a measure of the acidity or alkalinity of a solution.
True or False: A solution with a pH of 7 is considered acidic.
False
What is the role of enzymes in biochemistry?
Enzymes act as catalysts to speed up chemical reactions in biological processes.
Fill in the blank: The process of combining two or more substances to form a new substance is called ______.
chemical reaction
Multiple Choice: Which of the following is NOT a macromolecule? A) Carbohydrates B) Lipids C) Water
C) Water
What is the primary function of carbohydrates in the body?
Carbohydrates provide energy.
True or False: Proteins are made up of amino acids.
True
What are lipids primarily used for?
Lipids are primarily used for energy storage and making up cell membranes.
Fill in the blank: The smallest unit of a carbohydrate is a ______.
monosaccharide
Multiple Choice: Which of the following is a function of nucleic acids? A) Energy storage B) Information storage C) Structural support
B) Information storage
What is the difference between an organic and an inorganic compound?
Organic compounds contain carbon, while inorganic compounds do not.
True or False: All chemical reactions are reversible.
False
What is oxidation?
Oxidation is the process of losing electrons in a chemical reaction.
Fill in the blank: The study of the chemistry of living organisms is called ______.
biochemistry
What is a catalyst?
A catalyst is a substance that increases the rate of a chemical reaction without being consumed.
Multiple Choice: Which of the following is a characteristic of bases? A) Taste sour B) React with metals C) Taste bitter
C) Taste bitter
What is the role of water in biological systems?
Water is essential for life; it acts as a solvent, regulates temperature, and participates in chemical reactions.
True or False: Lipids are soluble in water.
False
What is the term for a solution with more hydrogen ions than hydroxide ions?
Acidic solution
Fill in the blank: The basic building blocks of proteins are ______.
amino acids
What type of bond is formed when atoms share electrons?
Covalent bond
