Chapter 3 - cells Flashcards
(11 cards)
whats an organism
an organism is a scientific living thing
name 7 characteristics of life
- Movement
- Respiration
- Response
- Growth
- Reproduction
- Excretion
- Nutrition
Cell
A cell is the basic building block of life
Organelle
A structure that has a special function or job to perform in the cell
What does an animal cell have
- Cell membrane
- Cytoplasm
- Nucleus
What does a planet cell have
- Cell wall
- Cell membrane
- Vacuole
- Nucleus
- Cytoplasm
- Chloroplast
What does a light microscope do?
Allows scientists/biologists to study organelles
Whats a sample of cells under a microscope called
A specimen
Name the more than 4 parts of a microscope
Base
Stage and stage clips
Light source
Diaphragm
Objective lens
Eyepiece lens
Coarse focus wheel
Fine focus wheel
Electron microscope
Used to study cells in greater detail, huge magnified image called micrograph
Name two small organelles that cant be viewed by a light microscope but can be viewed by an electron telescope
Mitochondria
Ribosomes