Mitosis,Meiosis,Body organs Test

Question 0

Interphase

Answer 0

Cell divison begins

Question 1

What happens in Mitosis?

Answer 1

• Produces two identical daughter cells
• Reproduces asexually
• Each daughter cell has same number of chromosomes as the original parent

Question 2

Prophase

Answer 2

the duplicated chromosomes condence and become visible

Question 3

Metephase

Answer 3

centromeres of the duplicated chromosomes line up across the center of the cell

Question 4

Anaphase

Answer 4

chromosomes separate and move along spindle fibers to opposite ends of the cell

Question 5

Telophase

Answer 5

chromosomes begin to spread out into a tangle of chromatin.

Question 6

Cytocinisis

Answer 6

• splits one cell into two

- division of cytoplasm

Question 7

Define Cancer

Answer 7

-body cells loose the ability to control growth

Question 8

Meiosis

Answer 8

• Reduces the number of chromosomes by 1/2 (2n->n)
• Sexual Reproduction
• increases VARIATION

Question 9

Halpoid vs. Diploid

Answer 9

Diploid:normal number of chromosomes;2 complete sets of chromosomes

Halpoid:1/2 the normal number of chromosomes;one set of chromosomes

Question 10

What is a Gamete

Answer 10

egg or sperm cell

Question 11

How do Mitosis and Meiosis differ?

Answer 11

• separation of chromosomes
• number of cells produced
• number of chromosomes each cell contains
• Meiosis=sexual
• Mitosis=asexual

Question 12

Homoglomus pairs

Answer 12

pairs that respond in body cells.

Question 13

tetrad?

Answer 13

2 Homoglomus pairs joined together

Question 14

Zygote?

Answer 14

Fertilized egg cell

Question 15

Cleavage

Answer 15

-rapid series of cell division(mitosis)

Question 16

Blastula?

Answer 16

-hollow ball of cells

Question 17

Ectoderm?

Answer 17

nervous system;skin

Question 18

Mesoderm

Answer 18

Muscles;circulatory,skelatal,excratory,and reproductive systems

Question 19

Endoderm

Answer 19

Lining of digestive and respitory tetrards;liver;pancreas

Question 20

Male Reproduction system?

Answer 20

• production of sperm cells

- production of testromone

Question 21

Female Reproductive system?

Answer 21

• produce eggs or the ovum

- support developing embryo

Question 22

testes?

Answer 22

sperm producting organs

Question 23

Scrotum?

Answer 23

production and storage of the sperm

Question 24

Follicle?

Answer 24

egg cell presnt in a tiny sac

Question 25

Ovaulation?

Answer 25

follicle matures and bursts,and the egg within it is released from the surface of the ovary

Question 26

FSH?

Answer 26

• from pitulary gland

- Stimmulate cause the development of the egg cell

Question 27

Estrogen?

Answer 27

• produced by follicle in ovary

- Causes uterus wall to thicken for pregnacy

Question 28

LH?

Answer 28

-triggers ovulation

Question 29

Progesterone?

Answer 29

• comes from ovary

- Maintains wall of Uterus for pregnacy

Question 30

Feedback Mechanism?

Example(s)?

Answer 30

one thing affecting the other thing

example:FSH and Progrestrone