Section 1
The following are characteristics of life EXCEPT:
Made of cells
Reproduces
Uses energy
Eventually dies
4) Eventually Dies
In a graph, the _____ always goes on the x-axis.
Independent Variable
The primary reason for including a control within the design of an experiment is to
ensure that the results obtained are due to a difference in only one variable (having "normal" data to compare too)
The tendency of water molecules to stick together _____
cohesion, being able to stick together allowing insects to walk on water, allows water to travel through a trunk
DNA, genetic material, is which kind of macromolecule?
Nucleic acid
A rock is not a living organism because…
It does not reproduce, does not use energy
Four groups of mice consume different amounts of sweetener in their food. Usually their food is unsweetened. The control group is the one that receives
The group that receives no sweetener
A calcium atom has 20 protons and _____ electrons.
20 - protons and electrons EQUAL each other
Passive movement of a molecule across a biological membrane requires _______ and moves a substance ______ its concentration gradient
integral proteins, and down
This macromolecule is comprised of Carbon, Hydrogen, and Oxygen in a 1:2:1 ratio.
Carbohydrates
Carbohydrates normally function in the human body as
A source of energy (quick energy)
How would you describe the active site of an enzyme?
The substrates binds
What is the function of cholesterol in the cell membrane?
Keeps the membrane fluid and flexible (provides stability)
All enzymes end in what suffix?
-ASE
Butter is a solid at room temperature. This means it is which type of lipid?
Saturated Solid (Solid- two S's)
A protein is a polymer made up of which kind of monomers?
amino acids (we have 20 amino acids that make up all of our proteins)
Enzymes are which type of macromolecule?
Protein
What is the function of an enzyme
Speed up chemical reactions
List the FOUR macromolecules
Carbohydrate, Lipid (fat), Protein, Nucleic Acid
What are the parts of the cell theory
-All living things are composed of cells
-Cells reproduced from existing cells
-Organisms are made up one one or many types of cells
What is the function of the Golgi body (apparatus)
Packages and ships cell items (like USPS)
If cells did not have ribosomes, the cell would not have what?
Proteins- ribosomes make proteins
If something passes through a cell membrane, what order will the item pass through (tails, and head)
Head, Tail, Tail, Head
Plant cells possess: Thylakoid, stoma, central vacuole, grana
TRUE or FALSE
TRUE
Ribosomes, mitochondria, & plasma membrane are found in ANIMAL & PLANT cells
TRUE or FALSE
True