Basic Components Of Living Systems

Question 1

Calculate magnification

Answer 1

M= image/actual

 I A      M

Question 2

Why are cells stained before being viewed with a light microscope

Answer 2

Increases contrast between different cell components makes them visible allows them to be identified

Question 3

Eye piece graticule

Answer 3

Glass disc fits on top of eye piece lens

Question 4

Stage micrometer

Answer 4

Microscope slide with a very accurate scale

Question 5

Scientific drawing

Answer 5

Labelled line drawing highlight features no shading title and magnification

Question 6

Magnification

Answer 6

How many times larger an image is than actual size

Question 7

Resolution

Answer 7

Ability to see individual objects as separate entities

Question 8

Nucleus

Answer 8

Controls metabolic activities of cells as it contains genetic info in form of dna

Question 9

Nucleolus

Answer 9

Responsible for producing ribosomes

Question 10

Mitochondria

Answer 10

Site of production of ATP final stage of respiration

Question 11

Vesicles

Answer 11

Membranous sacs used to transport materials in cell

Question 12

Lysosomes

Answer 12

Forms of vesicles with hydrolysis enzymes breaking down waste materials

Question 13

Cytoskeleton

Answer 13

Controls cell movement movement of organelles and provides mechanical strength

Question 14

3 cytoskeletal filaments

Answer 14

Microfilaments microtubules intermediate fibres

Question 15

2 types of extension that protrude some cells

Answer 15

Flagella and cilia

Question 16

Endoplasmic reticulum

Answer 16

Network of membranes enclosing flattened sacs called cisternae

Question 17

Functions of ER 2

Answer 17

Smooth lipid and carbohydrates synthesis and storage

Rough synthesis and transport of proteins

Question 18

Golgi apparatus

Answer 18

Plays part in modifying proteins and packaging them into vesicles