33 Questions
What type of bond do polar covalent bonded molecules like water have?
Ionic
Which type of reaction builds a new molecule and requires energy?
Synthesis reaction
What occurs in reversible reactions?
The reaction can run in the opposite direction
In the reaction A+B→C+D, what are A and B referred to as?
Reactants
What is the capacity to do work defined as?
Energy
Which of the following reactions involves a combination of synthesis and decomposition reactions?
Exchange reaction
What is the function of carbohydrates in living organisms?
Short-term energy storage
Which lipid type contains one or more double covalent bonds between carbons?
Unsaturated fats
What is the general chemical composition ratio of carbohydrates in terms of carbon, hydrogen, and oxygen?
1:2:1
Which organic molecule group is essential for building brain cells due to its requirement for glucose?
Carbohydrates
What is the primary role of a catalyst in a chemical reaction?
Increases the rate of the reaction
Which lipid type has a lower proportion of oxygen to carbon than carbohydrates?
Unsaturated fats
What is the smallest particle of an element?
Electron
Which particle is located outside the nucleus of an atom?
Electron
What is the number of protons in each atom known as?
Atomic number
When atoms share one or more pairs of electrons, what type of bonding occurs?
Covalent bonding
What occurs when there is an unequal sharing of electrons in a covalent bond?
Polar covalent bond
Which bond is weaker than ionic or covalent bonds?
Hydrogen bond
What forms when the positive end of one polar molecule attracts the negative end of another polar molecule?
Hydrogen bond
What is a chemical combination of 2 or more different types of atoms known as?
Compound
What occurs when there is a formation or breaking of chemical bonds between atoms, ions, molecules, or compounds?
Chemical reaction
What is the form of energy that is stored in chemical bonds?
Potential energy
What is the reaction that releases energy in the breakdown of ATP?
ATP ADP + P
Which of the following factors does NOT influence the rate of a chemical reaction?
pH
What is the defining characteristic of a base?
It is a proton (H+) acceptor
What is the main difference between inorganic and organic chemistry?
Inorganic chemistry deals with substances that do not contain carbon, while organic chemistry deals with substances that contain carbon.
What property of carbon allows it to form large, diverse, and complicated molecules for life?
Carbon's ability to form covalent bonds with other atoms
What is the main function of enzymes?
To increase the rate of biochemical reactions
Which of the following is NOT a factor that can cause protein denaturation?
Proper pH
What are the building blocks of nucleic acids like DNA and RNA?
Nucleotides
What is the primary function of the protein actin?
Muscle contraction
What is ATP?
An important organic molecule found in all living organisms
What are the main elements that make up proteins?
Carbon, hydrogen, oxygen, nitrogen, phosphorus
Explore the fundamentals of subatomic particles and elements in Chapter 2 of 'The Chemical Basis of Life' with this lecture outline. Learn about protons, neutrons, electrons, and the basic building blocks of matter.
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