chapter 3 Flashcards Preview

Science > chapter 3 > Flashcards

Flashcards in chapter 3 Deck (16):
1

the smallest structural and functional unit of an organism

Cell

2

the semipermeable membrane surrounding the cytoplasm of a cell.

Cell membrane

3

any of a number of organized or specialized structures within a living cell

organelle

4

the middle of the organism

nucleus

5

is a unicellular organism that lacks a membrane-bound nucleus

prokaryote

6

well defined membrane-bound nucleus

eukeryote

7

a kingdom made up of bacteria that live in extreme environments

archea

8

no nucleus but they have DNA

bacteria

9

Cell organelle composed of RNA and protein

ribosome

10

surface-area-to-voulume

ratio

11

the material or protoplasm within a living cell, excluding the nucleus.

cytoplasm

12

he concluded that all plants were made of cells

schleiden

13

he concluded that all cells came from existing cells

virchow

14

he was the first person to describe cells

hooke

15

he discovered single-celled organisms including bacteria

leeuwenhoek

16

he concluded that all cells came from existing cells

schwann