Explain whether or not a monosaccharide is a macromolecule.
It is not, because it is a monomer, which is the subunit (smaller piece) of a polymer. Polymers are macromolecules.
If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is..
7 (3 protons + 4 nuetrons)
What is the difference between simple diffusion and osmosis?
Diffusion transfers solute and osmosis transfers solvent
What is reasoning?
Explanation or justification based on evidence or previous knowledge.
On a graph, where is the dependent variable?
Y axis
What is active transport?
Movement of materials across a membrane from low concentration to high concentration, requiring energy
Why isn't facilitated diffusion considered active transport?
It does not require energy, though it uses a protein carrier to move particles from a high to low concentration.
Which of the 8 characteristics of life does the cell membrane help the cell achieve?
All organisms must maintain homeostasis.
What is evidence?
Supporting information based on observation.
What does semi-permeable mean?
Only certain materials can cross the cell membrane.
Which macromolecule is the main source of energy for living things?
carbohydrates
Cellulose is a chain of glucose molecules hooked together. It stores energy in plants. Which type of macromolecule (polymer) is cellulose?
Polysaccharide (carbohydrate)
What are the 2 rules for writing an experiment?
1. Must have a control group and an experimental group
2. Must have ONE independent variable (Only test one thing)
What are the three classes of macromolecules that are polymers?
Proteins
Carbohydrates
Nucleic Acids
When you use Claims, Evidence, and Reasoning to explain a scenario, what is the claim?
A statement that predicts the outcome of a situation or about what is happening.
Which type of solution has a high concentration of solute particles?
Hypertonic solution
Compare the size of eukaryotic cells to the size of prokaryotic cells. Explain.
Eukaryotic cells are larger and more complex, as they have more specialized functions compared to prokaryotic cells.
A _______________________ is made up of monomer subunits.
polymer
What does an arrow represent in a food web?
Energy transfer
Which step of the scientific method comes first?
Ask a Question
Which type of monomer is glucose?
carbohydrate--monosaccharide
What is an independent variable?
The factor in an experiment that the scientist changes.
What is the cell theory?
All living things are made of cells; Cells are the basic unit for life; Cells come from other cells.
What needs to be done BEFORE forming a hypothesis?
Gather Information/ Research
What is a reactant?
Substance that is used in a chemical reaction (input).
You are testing to see how different amounts of water affect plant growth. What is the dependent variable?
Plant Growth
What is an isotope--give an example.
An isotope is an atom with a different number of neutrons. C-13 is an isotope.
What is a hypothesis?
A prediction about the outcome of an experiment based on observation and research.
Why are photosynthesis and cellular respiration related?
The products of photosynthesis are the reactants for cellular respiration, and the products for cellular respiration are the reactants for photosynthesis.
The three particles that make up an atom are:
protons, neutrons, electrons
What is a concentration gradient?
Molecules have a higher concentration in one area compared to another.
What are the monomer subunits of proteins called?
amino acids
How is the movement of energy in an ecosystem different from the movement of matter?
Energy flows in one direction, while matter is recycled.