Random Biology
The concept that organisms who are the best suited to their environment will be the most successful
What is natural selection
These simple molecules form the basis of all proteins
What are amino acids?
True or False? The Watt unit was named after a scientist
true
A reaction that releases heat is called what?
An endothermic reaction.
Water is made of these two elements?
What is hydrogen and oxygen?
This is the unit for force
What is a Newton?
The difference between Speed and velocity
What is a direction / vector ?
Which cell type does not have a nucleus?
What is a prokaryote? (or prokaryotic cell)
What phase during mitosis is DNA replicated?
What is the S phase.
Name two greenhouse gases
Carbon dioxide (CO2), Water, methane (CH4), N2O, O3
What term refers to anything that occupies space, physical and chemical properties and exists in gas, liquid or solid form
What is Matter
There are this many periods on the periodic table of the elements.
What is seven?
This type of energy describes motion
What is Kinetic energy?
Forces occurring between objects and the surfaces they are on
What is friction?
The powerhouse of the cell
What is the mitochondria!
movement of ions, and molecules across cell membranes without the need for energy input
What is passive transport?
Name the 3 states of Matter and example for each
Solids, liquids, and gas
Ice, water, and water vapor
Atoms bond together to form these.
What are molecules or compounds?
The atomic number tells us this.
What is the number of protons?
The value of acceleration due to gravity
What is -9.8 m/s2
The two forces acting on a ball thrown into the air? (real life scenario)
What is air resistance and gravity?
Organs/parts many animals still have but are no longer used.
What are vestigial structures?
Which characteristic do all organisms in Kindoms Animalia, Protista, and Fungi have in common?
What is they are eukaryotic.
What are three steps to the scientific method
Observation
Question
Form a hypothesis
Make a prediction
Test the prediction
Analyze results
Communicate the results
Is the water in a saltwater solution the solute or the solvent?
What is solvent?
What is the strongest intermolecular force?
What is Hydrogen Bonding?
According to Newton’s second law of motion, force is equal to mass times_________.
What is acceleration?
This is the term for the Maximum speed reached by a falling object
What is terminal velocity?
The process by which water moves through the cell membrane to balance out a high concentration of solutes.
What is osmosis?
Which type of movement across a cell's membrane requires energy supplied by ATP?
Active transport
A push or a pull exerted on an object is called what?
Force
What type of reaction is this:
A + AB ----> AB
Synthesis.
What lowers activation energy in a reaction?
What is a catalyst (enzyme also acceptable)?
The distance a car travelled if it drove at 40 m/s for 30 minutes
What is 72 km?
D = v*t = 40 m/s * 1800 s
D= 72,000 m = 72 km
A bear, searching for food wanders 35 meters east then 20 meters north. Frustrated, he wanders another 12 meters west then 6 meters south. Calculate the bear's displacement.
26.93 m, 31.3 degrees NORTH of EAST