Ch2 Cell as the basic unit of life

Question 1

All _ are made of _ or more _

Answer 1

organisms, 1, cells

Question 2

Cell is the _ _ of _, it is the _ unit that shows all _ of life

Answer 2

basic unit, life, smallest, characteristics

Question 3

All cells come from _ _

Answer 3

pre-existing cells

Question 4

What is the Cell Theory?

Answer 4

-All organisms are made up of 1 or more cells
-The cell is the basic unit of life, it is the smallest unit that shows all characteristics of life
-All cells come from pre-existing cells

Question 5

Who was cell theory proposed by?

Answer 5

Theodor Schwann

Question 6

Who was the first person to have observed a cell?

Answer 6

Robert Hooke

Question 7

What was first used to examine a cell?

Answer 7

Light microscope

Question 8

Light microscopes
_ passes through a _ or a thin _ to form an _
Max magnification: _ times
_ image
_ specimens can be observed
specimens are _ more easily

Answer 8

light, specimen, slide, image
1600
colored
living
prepared

Question 9

_ electron microscope (TEM)
_ _ pass through very _ slide of _ to form an image
Max magnification: _ times
_ and _ , _d-image
shows _ structures of specimen

Answer 9

Transmission
Electron beams, thin, specimen
1500000
Black, white, 2
internal

Question 10

_ electron microscope (SEM)
_ beams _ over_ of specimen to form an image
Max magnification: _ times
_ and _ , _d-image
shows _ structures of specimen

Answer 10

Scanning
Electron, scan, surface
200000
black, white, 3
external

Question 11

Electron microscopes produce higher _ and _. More _ can be seen. _ can be added artificially.

Answer 11

magnification, resolution, details, Colors

Question 12

Compound light microscopes has _ sets of _ : _, _

Answer 12

2, eyepiece, objectives

Question 13

Eyepiece: a _ lens which we look through
Magnifications: _, _, _

Answer 13

magnifying, 5x, 10x, 16x

Question 14

Body tube: holds _ and _

Answer 14

eyepiece, objectives

Question 15

Nosepiece: can be _ to choose _

Answer 15

rotated, obectives

Question 16

Objectives: a _ lens pointing to _
Magnifications: _, _, _

Answer 16

magnifying, specimen
4x, 10x, 40x

Question 17

Condenser: focuses _ onto _

Answer 17

light, specimen

Question 18

Diaphragm: can be adjusted to _ amount of _

Answer 18

control, light

Question 19

Light source: provides _ for viewing _

Answer 19

light, specimen

Question 20

Arm: can be _ when carrying microscope

Answer 20

held

Question 21

Coarse adjustment knob: to _ and _ the stage for _ focus

Answer 21

raise, lower, rough

Question 22

Fine adjustment knob: to _ and _ the stage for _ focus

Answer 22

raise, lower, sharp

Question 23

Stage: place to _ slide for observation
can be _ and _ for _

Answer 23

clip, raised, lowered, focus

Question 24

Base: _ whole microscope

Answer 24

supports

Question 25

Light microscope Light from _ _, _ the specimen, enters _ and passes through _

Answer 25

light source, penetrates, objectives, eyepiece

Question 26

Image observed through microscope is _

Answer 26

inverted

Question 27

Low-power magnification area observed: _ Details observed: _ Brightness: _

Answer 27

larger less brighter

Question 28

high-power magnification area observed: _ Details observed: _ Brightness: _

Answer 28

smaller more dimmer

Question 29

formula for magnification?

Answer 29

total magnification = magnification of eyepiece*magnification of objectives

Question 30

Formula for actual size of object?

Answer 30

magnification = size of image/size of object

Question 31

Plant cells are generally _ than animal cells They have a more _ shape

Answer 31

larger regular

Question 32

Nucleus bounded by _ membrane ( _ membrane) there are _ that allow _ of _ between nucleus and _ contains _ which carries _ _ controls _ of cell

Answer 32

double, nuclear pores, exchange, materials, cytoplasm DNA, genetic information activity

Question 33

Cytoplasm A _ _ consisting of _ and _ holds many _ site for _ _ (by water) allows _ and _ of materials inside cell

Answer 33

jelly-like fluid, water, proteins organelles chemical reactions movement, transport

Question 34

Cell membrane membrane is _ and _ made of _ and _ encloses cell and _ cell contents from outside _ _ (only allows certain substances to pass through) controls _ of substances (in and out)

Answer 34

thin, flexible, phospholipids, proteins separates differentially permeable movement

Question 35

Cell wall In all _ cells _, _, made of _ _ _ (allows all substances to pass through) _, _, gives _ to plant cells

Answer 35

plant thick, rigid, cellulose fully permeable protects, supports, shape

Question 36

_ _ (ER) network of interconnected _ _ continuous with outer _ _ and extends throughout _ two types: _ ER, _ ER

Answer 36

Endoplasmic reticulum membrane-bounded sacs nuclear membrane, cytoplasm rough, smooth

Question 37

Rough ER Attatched with _ for synthesis of _ abundant in cells that produce a lot of _ (eg cells in _ that produce _ / _ pancreatic cells that secrete _)

Answer 37

ribosome proteins protein saliva, enzymes, pancreatic, enzymes

Question 38

Smooth ER no _ attached for _ of _ abundant in cells that produce a lot of _ (eg cells in _ that secretes _ _)

Answer 38

ribosome synthesis lipids lipids, testes, sex hormones

Question 39

Ribosome Not surrounded by _ some are attached to _ _, others lie free in _ involved in _ of _

Answer 39

membrane rough ER, cytoplasm synthesis, proteins

Question 40

Mitochondrial Bounded by _ membrane, _ is _ _ main site for _, converts _ energy to energy cell can use no. of mitochondrial is related to _ _ of cell. Cells that use _ _ of energy has more _

Answer 40

double, highly folded respiration, chemical energy requirements, a lot, mitochondrion

Question 41

Examples of cells with many mitochondrion? _ cell: synthesize of enzymes _ cell: high level of _ _ muscle cell: _ root hair cell: _ of mineras

Answer 41

enzyme-secreting liver, metabolic activities contractions absorption

Question 42

Chloroplast Bounded by _ membrane present in _ plant cells contains _ _ called _ which captures _ energy and converts it to _ energy ( _ ) _ _ are present inside from photosynthesis

Answer 42

double green green pigment, chlorophyll, light, chemical, photosynthesis starch grains

Question 43

Vacuole Bounded by _ membrane _ sac Animal cells have _, _ / have none, contains _, _, _ plant cells have _ _ vacuole, contains _ _ ( _, dissolved substances eg _, _, _ ) Plant cells become _ when large central vacuole is full of _, it _ _ to the plant

Answer 43

single fluid-filled small, few, water, food, enzymes large central, cell sap, water, glucose, pigment, waste turgid, water, provides support

Question 44

When drawing diagram of cell use _ _ lines has _ (cell name+ magnification)

Answer 44

pencil smooth title

Question 45

Eukaryotic cells ( _ ) Has a _ nucleus multiple _ _ (eg ER, mitochondria) DNA is within _ Most are _, some are _

Answer 45

eukaryotes true membrane-bounded organelles nucleus multicellular, unicellular

Question 46

Prokaryotic cells _ than eukaryotic cells have no _ _

Answer 46

smaller true nucleus

Question 47

Cell wall is present in most _ cells, but does not contain _

Answer 47

prokaryotic, cellulose

Question 48

cell membrane is present in all _ cells

Answer 48

prokaryotic

Question 49

Prokaryotic cells have no _ _, DNA and _ lies in _

Answer 49

membrane-bounded, ribosome, cytoplasm

Question 50

List an example of unicellular organism

Answer 50

Amoeba

Question 51

Most ekaryotes are _ organisms Cells work together in a _ way to serve _ functions in an organism

Answer 51

multicellular, coordinated, different

Question 52

_ Similar cells work together for one or more particular _ _ basic unit of _ _ different organs work together to preform specific task _ different tissues work together for one or more particular functions _ different systems work together to maintain _ order?

Answer 52

tissue, functions cell, life system organ organism, life cell, tissue, organ, system, organism

Question 53

Which organelles are double membrane Bounded?

Answer 53

Nucleus, mitochondrion, chloroplast

Question 54

Which organelles are single membrane Bounded?

Answer 54

ER, vacuole

Question 55

Which organelles has no membrane?

Answer 55

Ribosome

Question 56

What does staining specimen with iodine solution do?

Answer 56

Makes cell structure easier to observe

Question 57

What does adding cover slip to specimen do?

Answer 57

prevent specimen from drying up, provide flat surface for observation, and protect the specimen

Question 58

what does adjusting condenser when viewing specimen do?

Answer 58

To adjust the brightness of the image

Question 59

what does adjusting diaphragm when viewing specimen do?

Answer 59

it adjusts the brightness of the image

Question 60

Why should we be gentle and slow while putting a cover slip on top of a specimen?

Answer 60

to prevent the formation of air bubbles

Question 61

What would air bubbles trap inside cover slip on specimen do?

Answer 61

they interfere with observation of specimen

Question 62

Is blood cell? tissue? or organ?

Answer 62

tissue