CHCS Life Science Chapter 3
Help!
|
|
||||
|---|---|---|---|---|---|
| organism | a complete living thing
🗑
|
||||
| cell | the smallest living thing; a tiny unit of living material surrounded by a thin membrane
🗑
|
||||
| unicellular organisms | tiny organisms made of only one cell
🗑
|
||||
| multicellular organisms | made of more than one cell
🗑
|
||||
| tissue | a group of similar cells working together
🗑
|
||||
| colonial organisms | made of many cells that usually live together but could live by themselves
🗑
|
||||
| energy | the ability to do work
🗑
|
||||
| physical life | a complex organization of nonliving substances that is kept alive by using energy and has the characteristics of living things
🗑
|
||||
| characteristics of living things | movement, reproduce, sensitive to their environment, nutrition, excrete, respire, grow
🗑
|
||||
| the discovery of the cell | 1665, English scientist, Robert Hooke
🗑
|
||||
| The Cell Theory | 1) All cells come from preexisting cells
2) All living things are made of cells and the products of cells
3) The functions of living things are carried on by cells
🗑
|
||||
| Four basic functions of cells | use energy, respond to the environment, reproduce, manufacture materials
🗑
|
||||
| molecules | structures that make up cells; they are not alive
🗑
|
||||
| Four categories of molecules | carbohydrates, proteins, lipids (fats), nucleic acids
🗑
|
||||
| carbohydrates | made of only carbon, hydrogen, and oxygen atoms
🗑
|
||||
| proteins | are involved in almost everything that happens in a living cell; made of amino acids
🗑
|
||||
| nucleic acids | contain all the instructions that living cells need to make proteins and maintain life; example DNA
🗑
|
||||
| lipids | AKA fats; used for energy storage and making cell membranes
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
mrslisawatson
Popular Biology sets