Chapter 04-Cell Division

Question 0

Interphase

Answer 0

Longest stage in the cell cycle
Cell size doubles
Organelles are copied
DNA replicates
Prepare for mitosis

Question 1

3 Steps of the cell cycle

Answer 1

1. Interphase
2. Mitosis
3. Cytokinesis

Question 2

Mitosis

Answer 2

Nucleus divides

Question 3

Cytokinesis

Answer 3

Cytoplasm divides

Question 4

4 reasons cells need to divide (multicellular organism)

Answer 4

Grow
Develop specialized cells
Repair
Replace

Question 5

Prophase (mitosis)

Answer 5

Chromosomes condense (pack together)
Nucleus disappears

Question 6

Metaphase (mitosis)

Answer 6

Chromosomes line up in the middle

Question 7

Anaphase (mitosis)

Answer 7

Chromosomes separate apart

Question 8

Telophase (mitosis)

Answer 8

Two nuclei form

Question 9

Cytokinesis-Animal cells

Answer 9

Cytoplasm pinches in

Question 10

Cytokinesis-Plant cells

Answer 10

Cell plate forms

Question 11

Cell plate

Answer 11

Forms in plant cells during cytokinesis

Becomes cell wall

Question 12

Asexual Reproduction

Answer 12

offspring made from one parent

Question 13

binary fission

Answer 13

cell splits in two to reproduce (bacteria)

Question 14

budding

Answer 14

small growth off parent makes offspring (yeast and hydra)

Question 15

sexual reproduction

Answer 15

offspring made from two parents

Question 16

fertilization

Answer 16

joining of sperm and egg

Question 17

sexual reproduction-advantage

Answer 17

combines DNA from two parents

Question 18

sexual reproduction-disadvantages

Answer 18

takes longer, requires two parents

Question 19

asexual reproduction-advantages

Answer 19

takes less time, only requires one parent

Question 20

asexual reproduction-disadvantage

Answer 20

only have DNA from one parent

Question 21

meiosis

Answer 21

cell division that makes egg and sperm cells (gametes)

Question 22

compare/contrast mitosis and meiosis

Answer 22

mitosis: one cell division, makes two daughter cells, daughter cells have same number of chromosomes as parent
meiosis: two cell divisions, makes four daughter cells, daughter cells have half the number of chromosomes as parent

Question 23

Why are cells made during meiosis different from cells made during mitosis?

Answer 23

They have half the number of chromosomes

Question 24

Why must sperm and egg cells be produced using meiosis?

Answer 24

So they have half the number of chromosomes, and the fertilized egg (zygote) has the correct number of chromosomes.