BSC1005 Chapters 1-4 Study Guide questions with
verified answers
_______ have a four ring carbon skeleton. Ans✓✓✓ Steroids
A bond between a metal and nonmetal atom is a Ans✓✓✓ Ionic Bond
A bond between two nonmetal atoms is a Ans✓✓✓ Covalent Bond
Acid Ans✓✓✓ Chemical Compound that releases H+ Ions in a solution
Adaptation Ans✓✓✓ Any trait with a current functional role in the life
of an organism that is maintained and evolved by means of natural
selection
Are carbohydrates are hydrophilic or hydrophobic? Ans✓✓✓
Hydrophilic
Are lipids are hydrophilic or hydrophobic? Ans✓✓✓ hydrophobic
Atom Ans✓✓✓ the smallest component of an element having the
chemical properties of the element
,Atomic Mass Ans✓✓✓ The average mass of all the isotopes of an
element
Atomic Mass vs Mass Number Ans✓✓✓ Atomic mass is also known as
atomic weight. Atomic mass is the weighted average mass of an atom
of an element based on the relative natural abundance of that
element's isotopes. Mass number is a count of the total number of
protons and neutrons in an atom's nucleus.
Atomic Number Ans✓✓✓ Number of Protons
Base Ans✓✓✓ A solution that accepts H+ Ions
Base pairs are bonded through _______ bonds to form a double helix.
Ans✓✓✓ hydrogen
Biology Ans✓✓✓ Scientific Study of life
Biosphere Ans✓✓✓ All life and all the places where life exists
Buffers Ans✓✓✓ A substance that consists of acid and base forms in a
solution and that minimizes changes in pH when extraneous acids or
bases are added to the solution.
, Cell Theory Ans✓✓✓ all living things are composed of cells and all cells
come from other cells.
Cell wall function Ans✓✓✓ gives the cell strength and rigidity and
shape. Protects the cell and prevents the cell from bursting by
regulating water.
Cells Ans✓✓✓ The cell is the smallest unit that can display all the
characteristics of life. The cell has a special place in the hierarchy of
biological organization
Cilia Ans✓✓✓ Shorter hairlike projections that extend from the plasma
membrane and are used for locomotion
Communities Ans✓✓✓ All organisms in the tide pool - iguanas, crabs,
seaweed, bacteria, and others- are collectively called a community
Compound Ans✓✓✓ A substance made up of atoms of two or more
different elements joined by chemical bonds
Controlled experiment Ans✓✓✓ A test of the effect of a single variable
by changing it while keeping all other variables the same.
Covalent Bond Ans✓✓✓ a bond formed when atoms share one or
more pairs of electrons
verified answers
_______ have a four ring carbon skeleton. Ans✓✓✓ Steroids
A bond between a metal and nonmetal atom is a Ans✓✓✓ Ionic Bond
A bond between two nonmetal atoms is a Ans✓✓✓ Covalent Bond
Acid Ans✓✓✓ Chemical Compound that releases H+ Ions in a solution
Adaptation Ans✓✓✓ Any trait with a current functional role in the life
of an organism that is maintained and evolved by means of natural
selection
Are carbohydrates are hydrophilic or hydrophobic? Ans✓✓✓
Hydrophilic
Are lipids are hydrophilic or hydrophobic? Ans✓✓✓ hydrophobic
Atom Ans✓✓✓ the smallest component of an element having the
chemical properties of the element
,Atomic Mass Ans✓✓✓ The average mass of all the isotopes of an
element
Atomic Mass vs Mass Number Ans✓✓✓ Atomic mass is also known as
atomic weight. Atomic mass is the weighted average mass of an atom
of an element based on the relative natural abundance of that
element's isotopes. Mass number is a count of the total number of
protons and neutrons in an atom's nucleus.
Atomic Number Ans✓✓✓ Number of Protons
Base Ans✓✓✓ A solution that accepts H+ Ions
Base pairs are bonded through _______ bonds to form a double helix.
Ans✓✓✓ hydrogen
Biology Ans✓✓✓ Scientific Study of life
Biosphere Ans✓✓✓ All life and all the places where life exists
Buffers Ans✓✓✓ A substance that consists of acid and base forms in a
solution and that minimizes changes in pH when extraneous acids or
bases are added to the solution.
, Cell Theory Ans✓✓✓ all living things are composed of cells and all cells
come from other cells.
Cell wall function Ans✓✓✓ gives the cell strength and rigidity and
shape. Protects the cell and prevents the cell from bursting by
regulating water.
Cells Ans✓✓✓ The cell is the smallest unit that can display all the
characteristics of life. The cell has a special place in the hierarchy of
biological organization
Cilia Ans✓✓✓ Shorter hairlike projections that extend from the plasma
membrane and are used for locomotion
Communities Ans✓✓✓ All organisms in the tide pool - iguanas, crabs,
seaweed, bacteria, and others- are collectively called a community
Compound Ans✓✓✓ A substance made up of atoms of two or more
different elements joined by chemical bonds
Controlled experiment Ans✓✓✓ A test of the effect of a single variable
by changing it while keeping all other variables the same.
Covalent Bond Ans✓✓✓ a bond formed when atoms share one or
more pairs of electrons
