Biology Ch 5

Question 1

during this stage, additional growth occurs, ensuring the cell has enough cytoplasm and organelles

Accepted Answer

G2

Question 2

proposed that all living things are made of cells

Accepted Answer

Schwann

Question 3

cells spend most of their time in

Accepted Answer

interphase

Question 4

step where the chromosomes split, and sister chromatids move to opposite poles

Accepted Answer

anaphase

Question 5

innermost germ layer; becomes the lining of the internal organs

Accepted Answer

endoderm

Question 6

middle germ layer; becomes the muscle and bone

Accepted Answer

mesoderm

Question 7

Mitosis is used to make reproductive cells

Accepted Answer

False

Question 8

point where sister chromatids join

Accepted Answer

centromere

Question 9

there are types of cancer that can be inherited

Accepted Answer

True

Question 10

protein that DNA wraps around

Accepted Answer

histone

Question 11

Human body cells contain _________ chromosomes

Accepted Answer

46

Question 12

said that cells can only come from preexisting cells

Accepted Answer

Virchow

Question 13

programmed cell death

Accepted Answer

apoptosis

Question 14

step when the cell makes a copy of the DNA

Accepted Answer

S

Question 15

half of a chromosome

Accepted Answer

chromatid

Question 16

cause of cancer

Accepted Answer

mutation

Question 17

new cell formed by the union of two sex cells

Accepted Answer

zygote

Question 18

a substance known to cause cancer

Accepted Answer

carcinogen

Question 19

Which is NOT a part of the cell theory

Accepted Answer

cells can spontaneously generate

Question 20

step when new nuclear membranes form

Accepted Answer

telophase

Question 21

first to discover living cells

Accepted Answer

Leeuwenhoek

Question 22

chromosomes condense and nuclear membranes break down in this step

Accepted Answer

prophase

Question 23

unspecialized cells

Accepted Answer

stem

Question 24

condensed DNA

Accepted Answer

chromosome

Question 25

organelles double in number and the cell carries out normal functions in this stage

Accepted Answer

G1

Question 26

original cell before cell division takes place

Accepted Answer

parent cell

Question 27

cancer cells break off and spread to new locations

Accepted Answer

malignant

Question 28

step when chromosomes line up at the equator of the cell

Accepted Answer

metaphase

Question 29

cancer cells that remain in one location and do not spread

Accepted Answer

benign

Question 30

your genetic material

Accepted Answer

DNA

Question 31

reproduction involving only one parent

Accepted Answer

asexual reproduction

Question 32

outermost germ layer; becomes the skin and nervous system

Accepted Answer

ectoderm

Question 33

step when one cell splits into two, dividing the cytoplasm, organelles and DNA

Accepted Answer

cytokinesis

Question 34

proposed that all plants are made of cells

Accepted Answer

Schleiden

Question 35

uncontrolled cell growth

Accepted Answer

cancer

Question 36

regrow missing body parts

Accepted Answer

regeneration

Question 37

first to discover cells

Accepted Answer

Hooke

Question 38

new cells produced after cell division

Accepted Answer

daughter cells

Question 39

loose, uncoiled DNA

Accepted Answer

chromatin

Biology Ch 5

Questions 39

Biology Ch 5

Questions 39