B1.1 Flashcards
1
Q
What is the nucleus?
A
The nucleus:
- Encases genetic material
- Controls activities of the cell
2
Q
What is the cell membrane?
A
The cell membrane:
- Semi permeable (allows certain substances in and out of the cell)
3
Q
What is the mitochondria?
A
The mitochondria:
- Where respiration happens
4
Q
What are ribosomes?
A
Ribosomes:
- Where proteins are made
5
Q
What is the cytoplasm?
A
The cytoplasm:
- Where chemical reactions happen
6
Q
What are eukaryotic cells?
A
Eukaryotic cells:
- Contains genetic material within a nucleus
7
Q
What are prokaryotic cells?
A
Prokaryotic cells:
- Contains genetic material in cytoplasm
8
Q
What is a slime capsule?
A
Slime capsule:
- Protects cell from drying out and helps to stick to smooth surfaces
9
Q
What is a flagellum?
A
Flagellum:
- Tail-like structure that allows the cell to move through liquid
10
Q
What is magnification
A
Magnification:
- How much bigger the image is than the actual
11
Q
What is resolution
A
Resolution:
-The ability to distinguish between 2 points
12
Q
What is a transmission electron microscope?
A
Transmission electron microscope:
- Produces most magnified image
- Beam of electrons pass through thin slice of sample
- Beam is focused to produce an image
13
Q
What is a scanning electron microscope?
A
Scanning electron microscope:
- Produces 3D image of a surface
- Reflected electrons produce an image
