Chapter 3 Homework

Front 1

Integral proteins

Back 1

They are part of the plasma membrane and cannot be easily separated from it

Front 2

peripheral proteins

Back 2

Boundto the inner or the outer surface of the membrane and are easily separated fromit.

Front 3

ligands

Back 3

Extracellularmolecules. Trigger changes in the activity of a cell.

Front 4

Cytosol

Back 4

Isthe intracellular fluid, it contains dissolved nutrients, ions, and soluble andinsoluble proteins.

Front 5

autolysis

Back 5

Is performed by Lysosomes. These enzymes destroy cells proteins and organelles when they are no longer needed or not in use.

Front 6

Glycolisis

Back 6

Thebreaking down of glucose molecules in the cytoplasm into pyruvate before itenters the mitochondria.

Front 7

Cristae

Back 7

The inner membrane of the Mitochondria with folds that increases the surface area of the organelle. It increases the amount of protein and enzymes that attach and are involved in making ATP

Front 8

Chromatin

Back 8

When a cell is not dividing it is loosely coiled in the nucleus.

Front 9

Chromosome

Back 9

When the cell is about to begin division it coils tightly into chromsomes. A human contains 23 pairs of chromosomes.

Front 10

gene

Back 10

A gene is a functional unite of heredity

Front 11

Genetic Code

Back 11

It is the chemical language of the cell. It is how your cell builds proteins.

Front 12

Codon

Back 12

Each DNA triplet corresponds to a three nucleotide in the MRNA strand. Codons determsequenceine stop points, and start points.

Front 13

AntiCodon

Back 13

Atight loop in tRNA it contains three nitrogenous bases call an anticodon.

Front 14

Introns

Back 14

Intron are spliced out before leaving the nucleas

Front 15

Exons

Back 15

The Exons are spliced together and create a functional strand of mRNA

Front 16

Osmolarity

Back 16

Or osmotic concentration is the total solute concentration in an aqueous solution.

Front 17

Isotonic Solution

Back 17

Doesnot cause a flow in our out of a cell

Front 18

Hypotonic Solution

Back 18

Water flows into the cell

Front 19

Hypertonic Solution

Back 19

Water flows out of the cell

Front 20

Endycytosis

Back 20

Packaging materials can be packaged in vesicles at the cell surface and imported into the cell

Front 21

Exocytosis

Back 21

A cesicle forms inside the cell and fuses with the plasma membrane. The contents are then released out of the cell.

Front 22

Mitosis

Back 22

It is the process that your cells replicate and divide.

Front 23

Meiosis

Back 23

The replication and division of sex cells.

Front 24

Differentiation

Back 24

The gradual appearance of characteristic cellular specializations during development

Front 25

Apoptosis

Back 25

Suicide of the cell. Or genetically controlled death.