B1

Question 1

What is smallest whole unit of any living organism?

Answer 1

A cell

Question 2

How many organelles does an animal cell have?

Answer 2

-Cell membrane
-Ribosomes
-Nucleus
-Cytoplasm
-Mitochondria

Question 3

How many organelles does an plant cell have?

Answer 3

-Cell membrane
-Ribosomes
-Nucleus
-Cytoplasm
-Mitochondria
-Cell wall
-Vacuole
-Chloroplast

Question 4

How many Organelles does a bacteria cell have?

Answer 4

-Cell wall
-cell membrane
-pili
-slime capsule
-flagellum
-cytoplasm
-ribosomes
-DNA loop

Question 5

What does the nucleus do?

Answer 5

Contains genetic instructions and also controls the cells movements

Question 6

What do the Ribosomes do?

Answer 6

Where protein synthesis happens by linking amino acids

Question 7

What do the Ribosomes do?

Answer 7

Where protein synthesis happens by linking amino acids

Question 8

What do the mitochondria do?

Answer 8

Where aerobic and anaerobic respiration occurs converting oxygen to energy.

Question 9

What is the purpose of cytoplasm?

Answer 9

To hold the organelles together and in place.

Question 10

What does the cell membrane do?

Answer 10

Its selectively permeable to allow for diffusion and osmosis while preventing larger molecules from entering.

Question 11

What do cell walls do?

Answer 11

They offer a degree of protection and gives the cell a stronger structure.

Question 12

What do Chloroplast do?

Answer 12

Made of chlorophyll, uses CO2 and coverts it to energy via the process of Photosynthesis.

Question 13

What does the vacuole do?

Answer 13

It is filled with locked up chemical energy (cell sap). It also provides an almost skeletal structure throughout the plant and provides stability.

Question 14

What is a Flagellum?

Answer 14

A tail which the cell uses to move.

Question 15

What is a slime capsule?

Answer 15

The slime protects from toxic chemicals.

Question 16

What do the Pili do?

Answer 16

They are used to attach the cell to surfaces.

Question 17

When observing a cell through a microscope what formula is used to calculate the real size?

Answer 17

Use the I AM triangle:
I
A M
I=Image size
A= actual size
M= Magnification

Question 18

How to calculate the total magnification on a microscope?

Answer 18

Total= Eyepiece x objective lens

Question 19

How much magnification is there on a light microscope?

Answer 19

Eye piece= x10
Objective lens:
low= x4
medium= x10
high= x40

Question 20

Fill in the blanks

Answer 20

Question 21

What is Eukaryotic cell?

Answer 21

-has a nucleus
-bigger and more complex
-evolved later
-single or multicellular

Question 22

What is a prokaryotic cell?

Answer 22

-no nucleus
-smaller and simple
-Older
-single cell

Question 23

What is a Hypertonic solution?

Answer 23

Strong sugar solution
low water concentration

Question 24

What is a Hypotonic solution?

Answer 24

Weak sugar solution
high water concentration

Question 25

What is an Isotonic solution?

Answer 25

Equal parts sugar and water

Question 26

What does a Hypertonic solution do to a cell?

Answer 26

-Water moves out, -cell gets smaller -cell gets lighter -Turns Turgid

Question 27

What does a Hypotonic solution do to a cell?

Answer 27

-Water moves in -Cell gets bigger -Cell gets heavier -Bursts (lysis)

Question 28

What does a Isotonic solution do to a cell?

Answer 28

-Water moves in and out -Cell stays the same size -Cell stays the same weight

Question 29

Name 2 differences between light and electronic microscopes

Answer 29

-Electron uses electrons whereas light microscopes use light waves. -Max mag on a light microscope is x400 whereas on an electron microscope is x2000

Question 30

How big is ____ in standard form: -Millimeter -micrometer -Nanometer

Answer 30

-Millimeter= 1 x 10(-3) -micrometer= 1 x 10 (-6) -nanometer= 1 x 10 (-9)

Question 31

On a microscope what is meant by the object?

Answer 31

The real object that is being observed

Question 32

On a microscope what is meant by the image?

Answer 32

The picture that you can see when you see when you look through the eyepiece

Question 33

What is meant by magnification?

Answer 33

To produce an image of an object at a larger scale

Question 34

What is meant by resolution?

Answer 34

So you can see clearer