Chapter 3

Question 1

Osmosis

Answer 1

The diffusion of water through a selectively permeable membrane

Question 2

Molecules that form the plasma membrane

Answer 2

Phospholipids , cholesterol , carbohydrates , proteins

Question 3

Solution

Answer 3

A mixture of dissolved substances wishing a fluid

Question 4

Solute

Answer 4

The substance to be dissolved

Question 5

Solvent

Answer 5

The fluid within which a substance is dissolved

Question 6

List of steps of translation in correct order

Answer 6

A ribosome binds to mRNA, a tRNA anticodon binds to a complementary mRNA codon, a new amino acid is linked to the growing peptide chain, the tRNA is released from the ribosome and is available to pick up another amino acid

Question 7

Cytoplasm

Answer 7

The cellular material outside the nucleus but inside the membrane that contains the organelles and ctyosol

Question 8

Cytoskeleton is composed of

Answer 8

Micro tubules, intermediate filaments, actin filaments

Question 9

Interphase

Answer 9

Phase that the cycle runs from the end of the cytokinesis to the beginning of the next prophase

Question 10

Two types of molecules that form the majority of the cell membrane

Answer 10

Phospholipids , proteins

Question 11

tRNA

Answer 11

Carries amino acids to the surface of the ribosome

Question 12

mRNA

Answer 12

A copy of the information stored in the DNA

Question 13

rRNA

Answer 13

When combined with proteins forms ribosomes

Question 14

Mitosis

Answer 14

The form of a cell division in which a cell divides once and produces two genetically identical daughter cells