Lab Work
What is the proper way to carry a microscope?
With one hand holding the arm and the other under the base.
The process of using and transforming energy and building/breaking down molecules, basically all chemical reactions that occur in a cell is called _____.
Metabolism
The outermost electron shell is called ______.
the valence shell
Name the elements of life.
Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
Chromosomes are ________.
condensed chromatin
What type of graph is almost always used for science experiments?
A line graph
Homeostasis is _____.
the maintenance of internal conditions
The attraction between an electropositive hydrogen atom in one molecule and a an electronegative atom in another molecule is called ______.
hydrogen bonds
Macromolecules are dissembled in _____ reactions.
hydrolysis
Would Na+ have an easy or difficult time diffusing through the lipid bilayer?
Difficult
The independent variable is _____ and the dependent variable is _____.
the variable that is manipulated by the experimenter... what is affected by the independent variable
What important molecular function does DNA have for cells?
It has the recipe for cells to make proteins.
A bond in which 1 atom loses an electron and and another accepts that electron becoming electrically charged is an ____ bond.
ionic
When a fatty acid chain contains one or more double carbon-carbon bond it becomes _____.
unsaturated
If a cell was placed in a hypertonic solution, what would occur?
Water would leave the cell.
The x-axis of your graph is always your ___ variable and the y-axis is always your ___ variable.
independent...dependent
From smallest to largest in complexity, list the 7 levels of biological sequence.
Define cohesion.
The ability of water molecules to cling to other water molecules.
When ATP loses a phosphate group, what does it become?
ADP
Photosynthesis occurs in _____ and cellular respiration occurs in _____.
chloroplast...mitochondria
How do you calculate the lens magnification of a microscope?
By multiplying the ocular lens by the power of the objective lens.
Bacteria can become drug resistant as a direct result of ______.
natural selection
What kind of bond are hydrogen and oxygen held together by in a water molecule?
Polar covalent bond
A substrate that reduces enzyme activity by entering the active site in place of a substrate
Competitive inhibitor
What is the equation for photosynthesis?
6CO2 + 6H2O --> C6H12O6 + 6O2