Life and Science
Archaea, Bacteria and Eukarya are the names of this level of classification.
What is / are domain(s)?
True / False: All eukaryotes are multicellular organisms.
False
This is the smallest particle a substance can be divided into and still retain the properties of an element.
What is an atom?
This subatomic particle has insignificant mass.
What is an electron?
Due to hydrogen bonding, ice is how dense compared to water?
A) More dense
B) Less dense
C) The same density
B) Less dense
These are the four eukaryotic kingdoms.
What are Animalia, Plantae, Protista, and Fungi?
These are characteristics / properties that arise as life becomes more complex. (Eg. Organ system --> Organism)
What are emergent properties?
This is the maximum number of electrons that an atom's lowest energy level may contain:
A) 2
B) 4
C) 6
D) 8
E) 10
A) 2
These four elements are the most abundant ones in living systems.
What are Oxygen, Nitrogen, Carbon and Hydrogen?
Water is a very versatile solvent because water molecules are __________.
A) Hydrophobic
B) Ionic
C) Nonpolar
D) Polar
D) Polar
This feature is common to both eukaryotic and prokaryotic cells.
a) Metabolism
b) Cytoplasm
c) Membrane bound organelles
d) Both A & B
e) None of the above
d) Both A & B
This characteristic of life allows cells to adapt to changing environments and maintain things like ideal pH, temperature, etc.
What is homeostasis?
This type of bond describes when the electrons are shared equally between two atoms.
What is a covalent bond?
How many electrons would be present in the valence shell of a silicon atom (atomic number 14, mass number 28)?
A) 1 electron
B) 2 electrons
C) 4 electrons
D) 6 electrons
C) 4 electrons
This term refers to when water sticks to another substance (eg. water droplets sticking to a spider web).
What is adhesion?
Which of the following domains is prokaryotic?
A) Archaea
B) Fungi
C) Eukarya
D) Protists
A) Archaea
Which of the following is the fundamental unit of structure and function in
living organisms?
a. Tissue
b. Cell
c. Organelle
d. Organ
b. Cell
Compared with Phosphorous-31, the radioactive isotope, Phosphorous-32 has:
A) a different atomic number.
B) a different charge.
C) one more proton.
D) one more electron.
E) one more neutron.
E) one more neutron.
The reactivity of an atom arises from:
A) the potential energy of the valence shell.
B) the sum of the potential energies of all the electron shells.
C) the existence of unpaired electrons in the valence shell.
D) the average distance of the outermost electron shell from the nucleus.
C) the existence of unpaired electrons in the valence shell.
Hydrogen bonding in water is caused by:
A) excessive hydrogen dissolved in water
B) the electronegativity caused by covalent bonds within water molecules
C) available electrons that are shared
D) electrons that are donated by one atom and received by the other
B) the electronegativity caused by covalent bonds within water molecules
Which of the following is a correct hierarchy of decreasing complexity?
A) organ system, tissue, molecule, cell
B) nervous system, brain, nervous tissue, nerve cell
C) organism, organ system, tissue, cell, organ
D) organ system, nervous tissue, brain
B) nervous system, brain, nervous tissue, nerve cell
Which of the following is NOT an attribute of living things?
a. All living things must use oxygen
b. All living things are made of at least one cell
c. Living things can reproduce
d. Living things must have genetic information (DNA/RNA)
e. None of the above
a. All living things must use oxygen
Which statement is true of all atoms that are anions?
A) The net charge is 1-.
B) The atom has more protons than electrons.
C) The atom has more neutrons than protons.
D) The atom has fewer protons than does a neutral atom of the same element.
E) The atom has more electrons than protons.
E) The atom has more electrons than protons.
Which of the following represents the isotope Oxygen-18? (Hint: Oxygen's atomic number is 8)
A) 6 protons, 8 neutrons, 6 electrons
B) 9 protons, 9 neutrons, 9 electrons
C) 10 protons, 8 neutrons, 9 electrons
D) 8 protons, 10 neutrons, 8 electrons
D) 8 protons, 10 neutrons, 8 electrons
Water has __________ than some other liquids and metals. This is why when you heat an iron pot of water on the stove, the pot will get hot before the water does.
A) Lower heat of vaporization
B) A higher specific heat
C) A lower capacity for forming hydrogen bonds
D) A lower specific heat
B) A higher specific heat