WorksheetsUnit 1 - Review
Total questions: 27
Worksheet time: 14mins
How many neutrons does Oxygen-17 have?
8
9
10
11
Electrons account for the majority of an atom’s mass. True or False?
True
False
What is the relative charge of a proton?
1
0
-1
2
Which subatomic particle has a negligible relative mass?
Proton
Neutron
Electron
Photon
What is the relative mass of a neutron?
1
0
-1
2
What is "specific heat"?
A substance's tendency to resist change in temperature.
The amount of heat required to change a substance's state.
The rate at which a substance absorbs heat.
The temperature at which a substance melts.
What type of bond involves two atoms sharing electrons?
Ionic Bond
Covalent Bond
Metallic Bond
Hydrogen Bond
What is the term for a protein that speeds up a chemical reaction without being consumed by the reaction?
Catalyst
Enzyme
Reactant
Inhibitor
What is the main function of carbohydrates in the body?
Energy storage and supply
Building muscle
Producing hormones
Strengthening bones
The cell membrane is comprised of what?
Phospholipid Bilayer
Protein Layer
Carbohydrate Layer
Nucleic Acid Layer
What is the primary function of enzymes in chemical reactions?
Increase the temperature of the reaction
Speed up reactions by lowering the activation energy
Change the products of the reaction
Slow down the reaction rate
What are the three main components of a nucleotide in DNA?
Phosphate, Sugar, Base
Protein, Lipid, Carbohydrate
Acid, Base, Salt
Enzyme, Substrate, Product
Which base pairs with Adenine (A) in DNA?
Cytosine (C)
Guanine (G)
Thymine (T)
Uracil (U)
What is the shape of the DNA molecule?
Single helix
Double helix
Triple helix
Quadruple helix
What is the function of mRNA in protein synthesis?
It carries genetic information from DNA to the ribosome.
It synthesizes proteins directly.
It forms the structure of ribosomes.
It transports amino acids to the ribosome.
What is the role of ribosomes in protein synthesis?
They carry genetic information from DNA.
They synthesize proteins by translating mRNA.
They transport amino acids to the mRNA.
They replicate DNA.
Which stages of cellular respiration take place in the mitochondria?
Glycolysis and Pyruvate Oxidation
Citric Acid Cycle and Electron Transport Chain
Glycolysis and Citric Acid Cycle
Pyruvate Oxidation and Glycolysis
Do all cells have a nucleus?
Yes, all cells have a nucleus.
No, only eukaryotes have a nucleus.
No, only prokaryotes have a nucleus.
Yes, but only in plant cells.
What structure is responsible for controlling what enters and exits the cell?
Nucleus
Cell Membrane
Mitochondria
Ribosome
What is the purpose of cellular respiration?
To convert sugar into energy
To produce oxygen
To create proteins
To store fat
Where does the citric acid cycle occur in the cell?
Cytosol
Mitochondrion
Nucleus
Ribosome
What is the net production of ATP from Glycolysis?
2 ATP
4 ATP
6 ATP
8 ATP
What are the products of cellular respiration?
Glucose and Oxygen
Carbon Dioxide, Water, and ATP
Oxygen and Water
Glucose and ATP
What are the reactants in the light-dependent reactions of photosynthesis?
Light, H2O
CO2, O2
ATP, NADPH
CH2O, O2
What is produced during the Calvin Cycle in photosynthesis?
O2
CH2O (sugar)
NADPH
Light
Which molecule is released as a byproduct of the light-dependent reactions?
CO2
O2
CH2O
NADPH
Which property of water can be attributed to its polarity and hydrogen bonds?
high specific heat
transparency
low boiling point
high density
