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Flashcards in Lab Quiz 2 Deck (46)
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1

Specificity

Receptors are specific, only respond to one ligand.

2

Ligand

Chemical produced by the body to activate a receptor.

3

Agonist

Chemical from outside of the body that activates a receptor.

4

Antagonist

Binds a receptor but doesn't activate it. Prevents anything else from binding the receptor.

5

Enzyme

Biological catalysts that lower the activation energy of a reaction.

6

Activation Energy

The amount of energy needed to trigger a reaction.

7

Active Site

Region where the enzyme binds that determines the catalytic effect of the enzyme.

8

Cofactors

Aid in the binding process.

9

Coenzymes

Also aid in the binding process.

10

Dye-Coupled Reactions

The process of adding a dye into a reaction in order to observe the reaction between two things of interest. This technique is often used when using a spectrophotometer.

11

Guaiacol

Used in the enzyme activity experiment, when oxidized it produces a brownish color.

12

Microplate Reader

Detect differences between wells on a microtiter plate.

13

Derivative Graph

The slope of the raw data and verses the derivatives of the lines at certain points on the graph.

14

Denaturation

When a protein loses its shape because of a change of external factors that differ from the native state.

15

Karyokinesis

Nuclear division during mitosis.

16

Mitosis

The process in which cells replicate and produce two identical daughter cells.

17

Cytokinesis

Cytoplasmic divison, the last step in mitosis.

18

Chromosomes

The carrier of genes found in the nucleus.

19

Sister Chromatids

The duplicate parts of each chromosome.

20

Centrosome

Where the microtubule spindles meet. Spindles radiate from here.

21

Centromere

Holds the sister chromatids together as part of the same chromosome.

22

Spindle

Microtubules radiating from the centromere. Connect to sister chromatids at the kinetochore to pull them apart during mitosis.

23

Asters

The "star-burst" structure made by the spindles and centromere.

24

Cleavage Furrow

The indent or separation between the two daughter cells in the mitosis.

25

Cell Plate

Found in plant cells, separates the daughter cells during the final stage of mitosis.

26

Cell Cycle

The cell cycle is the events that take place leading up to and during cellular division.

27

Interphase

The period of cellular growth prior to mitosis.

28

Prophase

The nuclear envelope disappears, spindle begins to form.

29

Metaphase

Spindle has arranged the chromosomes in the equator of the cell.

30

Anaphase

Sister chromatids begin to separate and move to opposite poles of the cell.