Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology s3 ut1 > s3 ut1 > Flashcards

s3 ut1 Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Levels of body organization (small to large)

A

organelle, cell, tissue, organ, system, organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Organelle (levels)

A

sub-cellular structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cell (levels)

A

The basic unit of life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Tissue (levels)

A

Similar cells work together for one or more particular functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Organ (levels)

A

Different tissues work together for one or more particular functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

System (levels)

A

Different organs work together for a particular function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Organism (levels)

A

Different systems work together to maintain life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Orientation of the imaged

A

magnified and inverted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Uses for cover slip

A

Flatten the tissue for observation
Prevent the objective lens from touching the specimen
Prevent the objective lens from getting dirty
Prevent the cells from drying out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Peeling of epidermis

A

To separate a thin tissue for observation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Staining with iodine solution

A

To make certain cells more distinct (e.g. nucleus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Adding a drop of water

A

To reduce the refraction of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The specimen must be thin

A

To allow sufficient amount of light to pass through the specimen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Lower the cover slip with a pair of forceps slowly

A

To prevent the formation of air bubbles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Wipe up spills

A

To keep the slide dry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Observing a wet mount

A

Keep the stage of the microscope horizontal, never tilt it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

7 characteristics of organisms

A

Reproduction, growth, nutrition, respirtaion, irritability, movement, excretion (gerrmin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Growth (?)

A

Organsims increase in size, mass and height, complexity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Excretion (?+i)

A

Organism remove the waste products produced from metabolic reactions inside the body
to remove harmful metabolic wastes
maintains a constant internal environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Reproduction (?+i)

A

Organisms have the ability to produce offspring
to allow the species to continue
to increase the number of offspring

21
Q

Respiration (coo)

A

All organisms oxidize food to release energy for body activities

21
Q

Movement

A

Organism have the ability to move part of or the whole body
I: to find food, to escape from enemies, to find mates for reproduction

22
Q

irritablility

A

Organisms have the ability to detect and respond to change in environment
To increase the chance of survival of organisms

23
Q

Nutrition

A

All living things have to make or obtain their own food
Food provides us with raw materials from growth and repair
Food provides us with energy for movement

24
Q

Rough ER (F)

A

a SITE FOR THE SYNTHESIS OF PROTEINS

25
Q

Smooth ER (F)

A

A site for the synthesis of lipids

26
Q

Ribosome (F)

A

Involved in the synthesis of proteins

27
Q

Cell wall (F)

A

Protects, support and gives shape to the plant cell

28
Q

Cell wall (S)

A

Thick and rigid outermost layer
Fully permeable –> allows all water and dissolved substance to pass through

29
Q

working principle of light microscopes

A

Light passes through a specimen or a thin slide of it to form an image

30
Q

working principle of transmission electron microscopes

A

Electron beams pass through a very thin slide of specimen to form an image

31
Q

working principle of scanning electron microscopes

A

Electron beams scan over the surface of a specimen to form an image

32
Q

Appearance of the image produced from light microscopes

A

Coloured image

33
Q

Appearance of the imaged produced from TEM

A

Black and white two-dimensional image showing the internal structures of the specimen

34
Q

Appearance of the imaged produced from SEM

A

Black and white three-dimensional image showing the external structures of the specimen

35
Q

Advantages of Light microscopes

A

Living specimens can be observed
Specimens can be prepared easily

36
Q

Advantages of Electron microscopes

A

Magnification and resolution of the images are higher, so more details can be seen

37
Q

Eyepiece (mcs)

A

a magnifying lens which our eyes look through

38
Q

Body tube (mcs)

A

It holds the eyepiece and the objectives

39
Q

Nosepiece (mcs)

A

We can rotate it to choose the objective required

40
Q

Objectives (mcs)

A

A magnifying lens pointing to the specimen

41
Q

Condenser (mcs)

A

A lens that focuses light onto the specimen

42
Q

Diaphragm (mcs)

A

We can adjust it the control the amount of light shone onto the specimen

43
Q

Light source (mcs)

A

Provides light for viewing the specimen

44
Q

Arm (mcs)

A

We hold it when carrying the microscope from place to place

45
Q

Coarse adjustment knob (mcs)

A

We turn it to raise or lower the stage to get a rough focus
Turning it causes a large movement of the stage

46
Q

Fine adjustment knob (mcs)

A

We turn it to raise or lower the stage to get a sharp focus
Turning it causes a smaller movement of the stage
Use it when the speciment is in rough focus

47
Q

Stage (mcs)

A

We clip the slide here for observation
It can be raised or lowered to focus

48
Q

Base (mcs)

A

supports the whole microscope

Biology s3 ut1 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions