Characteristics of Life
Changes an organism undergoes in its lifetime before reaching its adult form
Growth & Development
An isotope of Chlorine (Atomic #17) has an atomic mass of 33. How many neutrons does it have?
16
The process by which plants absorb water from the soil, transport it up the stem, and lose water out of openings in the leaf is a result of
Capillary Action
Transport molecules such as hemoglobin belong to this group
Proteins
In plants, this organelle is made up of cellulose
Cell Wall
Regulation of an organism’s internal environment to maintain conditions needed for life
Homeostasis
Which of the choices below are isotopes of the same element?
P N E
A 13 14 13
B 14 14 13
C 14 15 15
D 15 15 15
B & C
Water is able to help moderate global temperatures because it has
A high heat capacity
20 different subunits, or “R Groups.” can be put together in various ways to form these molecules
Proteins
This organelle is composed of an outer membrane and an inner membrane that is highly folded
Mitochondria
Orderly structure shown by living things
Organization
Energy needed to start a chemical reaction
Activation Energy
A solution is measured to have a pH of 7. Make a statement best describes the concentration of ions in this solution
The hydrogen ions are equal to the hydroxide ions
Contains compounds that are highly hydrophobic.
Lipids
This organelle has two parts and is found in prokaryotic and eukaryotic cells
Ribosome
Any change in an organism’s internal or external environment that causes the organism to react
Stimulus
Speeds up non-biological reactions
Catalyst
The tendency for water molecules to stick to other materials is called
Adhesion
Cellulose from this group is the strengthening tissue found in the cell walls of plants
Carbohydrates
This organelle is responsible for turning energy into sugar
Chloroplast
All organisms pass this along _______ through the process of _______
DNA / Reproduction
Which of the choices below are ions of the same element?
P N E
A 10 10 9
B 10 11 10
C 10 10 11
D 11 10 11
A & C
Water is less dense as a solid because the ____________ expand as the molecules decrease in temperature
Hydrogen Bonds
Triglycerides belong to this group.
Lipids
State the three parts of the cell theory
(1) All living things are made up of cells
(2) Cells are the smallest units (or most basic building blocks) of life, and
(3) All cells come from preexisting cells through the process of cell division.