click below
click below
Normal Size Small Size show me how
CHCS~Life Science
3B~2017~7th~
| cells | a living structure/little rooms |
| size of white blood cells | average |
| each drop of human blood (cells) | 130 million cells |
| human body (cells) | 60 trillion cells |
| some cells | are specialized and perform special functions |
| Robert Hooke | the first person to use the word cell |
| cytoplasm | the thick substance cells have |
| scientific observations were made | after several years before the accepted the cell theory |
| All cells come from | preexisting cells |
| All living things are made of | cells and the product of cells |
| The functions of living things | are performed by the cells they are made of |
| cells from parents | join together to produce embroy |
| Cells__________&___________ to produce more cells | grow divide/which develop into parts of the body |
| Fingernails,toenails,hair are made of | skin cells |
| All cells use (A) | energy |
| All cells (B) | manufacture materials |
| All cells respond (c) | to their environment |
| All cells (D) | reproduce themselves |
| (A) when cells stop working they | die |
| (b) cells make material | inside of them |
| (b) Produce wast materials | during activities |
| (C) cells live through | changing enviorment |
| (C) some cells are extremely | sensitive |