B1-key Concepts In Biology

Question 1

What is the difference between magnification and resolution?

Answer 1

Magnification is How much an image is tham the actual object being observed

Resolution is the ability to distinguish two points .a high resolution means an image will be sharper and clearer

Question 2

Comparing light and electroms microscopes

Magnification
Resolution
Type of radiation used
Focused by 
Type of material that can be viewed
Size 
Preparation and cost of material

Answer 2

Light microscope 
X1500
250nm
Light
Glass lenses
Living abiotic
Small and portable
Cheap and easy

Electron microscope x500000
0.25
Electeons
Electromagnets
Dead/abiotic
Large and static 
Difficult and expensive

Question 3

What are the two primary types of cell

Answer 3

Prokaryotic and eukaryotic

Question 4

What is prokaryotes?

Answer 4

Organisms that are one single prokaryotic cell

Question 5

Does Prokaryotic have a nucleus

Is it a bacteria

Answer 5

Has no true nucleus

Bacteria

Question 6

Does eukaryotic have a nuleus

Answer 6

Has a true nucleu

Fungi ,plant and animal cells

Question 7

What is eukaryotes

Answer 7

Organisms made up of many eukaryotic cells

Question 8

Aerobic respiration occurs in the ribosomes true or false

Answer 8

False

Question 9

Plants cells are prokaryotic

True or false

Answer 9

False

Question 10

Bacteria cells have a nucleus

True of false

Answer 10

False

Question 11

All cells have cytoplasm

True or false

Answer 11

True

Question 12

All cells have a cell wall

True or false

Answer 12

False

Animal cells dont have a cell wall

Question 13

Flagellum roatate to allow some bacteria to move

False or true

Answer 13

True

Question 14

Chromosomal and plasmid Dna are both circular

True or false

Answer 14

True