Lab 3

Question 1

Diffusion

Answer 1

movement of molecules from high to low concentration

Question 2

Osmosis

Answer 2

movement of solvent (water) through selectively permeable membrane (plasma membrane) from low solute to high solute

Question 3

Isotonic solution

Answer 3

solute concentration the same on both sides of the membrane

Question 4

Hypertonic solution

Answer 4

solution having higher concentration than the cell

Question 5

Hypotonic solution

Answer 5

solution having lower concentration than the cell

Question 6

What prevents plant cells from bursting

Answer 6

cell wall

Question 7

Why are coral bell non specialized epidermal cells purple?

Answer 7

Anthocyanins in the central vacuole

Question 8

Binary fission

Answer 8

prokaryotic cell division
circular chromosome replicating and dividing

Question 9

Longest phase of cell cycle

Answer 9

interphase

Question 10

Interphase

Answer 10

cell growth, prep for cell division, dna synthesis

Question 11

S stage

Answer 11

chromosome replication. replication creating sister chromatids connected by centromere

Question 12

Major functions of mitosis

Answer 12

cell replication for dead and damaged cells, asexual reproduction,

Question 13

Prophase

Answer 13

chromosomes condense, spindle begins to form

Question 14

Prometaphase

Answer 14

nuclear envelope breaks down, spindles attach

Question 15

Metaphase

Answer 15

Chromosomes line up in middle (metaphase plate)

Question 16

Anaphase

Answer 16

chromatids pulled apart

Question 17

Telophase

Answer 17

spindle detaches, nuclear envelope begins to reassemble, cytokinesis begins

Question 18

Chromosome drawing characteristics

Answer 18

“blobs”

Question 19

Chromosome diagram characteristics

Answer 19

individual chromosomes shown

Question 20

Time spent in each cell stage calculation

Answer 20

= (cells in phase)/(total cells) x 960 minutes

Question 21

Unicellular example

Answer 21

Chlamydomonas

Question 22

Unicellular characteristics

Answer 22

red eyespot for orientation towards light
one cell

Question 23

Simple Colonial example

Answer 23

Gonium

Question 24

Simple Colonial characteristics

Answer 24

group of cells held by gelatinous matrix in line shape
cytoplasmic bridges for communication
no specialization of cells

Question 25

Colonial example

Answer 25

Eudorina

Question 26

Colonial characteristics

Answer 26

ball of cells with gelatinous matrix

Question 27

Multicellular Example

Answer 27

Volvox