Chemistry
What are the two particles found in the nucleus of an atom?
What is Newton's 1st law of motion?
An object in motion stays in motion and an object at rest stays at rest.
What are all living things made up of?
Cells.
What is the difference between prokaryotic cells and eukaryotic cells?
Eukaryotes do have membrane-bound organelles, whereas prokaryotes do not.
What is the energy criteria of life?
All living organisms extract energy from their surroundings and convert it into a usable form.
What is the process where a liquid changes to a gas? Is energy added or removed?
Evaporation. Added.
A speeding car travels East for 3 hours and 15 minutes, without being caught. If it covered a distance of 292.5 miles, what was the velocity of the car in mi/hr?
90 mi/hr East
What is the purpose of DNA?
It provides instructions for the cell in a code of nucleotide bases.
What purpose does the cytoplasm serve?
It is the gel-like substance, in which all of the cell's organelles are suspended.
What are the three ways that organisms extract energy?
Autotrophs - Produce their own food.
Heterotrophs - Consume other life.
Decomposers (Saprophytes) - Decompose dead life.
Chemical or Physical Change:
Burning a piece of paper.
Chemical.
What is the difference between speed and velocity?
Speed does not include direction. Velocity does.
All living things sense changes in their surroundings and ______.
Respond to those changes.
What do mitochondria do?
They provide energy for the cells.
What is the formula for cellular respiration?
What defines an element?
The number of protons (atomic number).
What are the six simple machines?
Inclined plane, wheel and axle, lever, wedge, pulley, screw.
What is the complement of this DNA sequence?
TGCAAAGGCTC
ACGTTTCCGAG
What special organelles help a plant perform photosynthesis?
Chloroplasts.
What are the four macronutrients and what are their monomers?
Carbohydrates - Monosaccharides
Fats - Glycerol and Fatty Acids
Proteins - Amino Acids
Nucleic Acids - Nucleotides
What is a cation?
A cation is a positively charged ion in an ionic bond.
What is an example of a third-class lever?
Fishing rod, tweezers, arm, etc.
What is homeostasis?
Homeostasis is the process by which the internal environment of a living organism is stabilized.
What cellular structures help a plant stay upright? How do they do it?
The cell wall and the central vacuole. The central vacuole fills with water and pushes against the cell wall. This makes all the cells firm and rigid and helps them stand up.
What happens in the electron transport system? Where does it occur? Does it use oxygen?
It releases the most ATP out of any part of cellular respiration. It combines hydrogen and oxygen to create water. In the mitochondria. Yes.