Brainscape's Knowledge GenomeTM

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


See full index

CELS 191 > Lecture 2: The Diversity of life > Flashcards

Lecture 2: The Diversity of life Flashcards

1
Q

First 4 characteristics that define life:

A

cellular organisation
reproduction
metabolism
homeostasis

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

Last 4 characteristics that define life:

A

hereditary
response to stimuli
growth and development
adaptation through evolution

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

Scale of nature seen by unaided eye:

A

Human height
length of some nerve and muscle cells
chicken egg
frogs egg

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

Scale of nature seen by light microscopy:

A 
Human egg
most plans and animal cells
nucleus
most bacteria
mitochondrion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Scale of nature seen by super-resolution microscopy:

A

smallest bacteria
viruses
ribosomes

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

Scale of nature seen by an electron microscopy:

A

From plant and animal cells
proteins
lipids

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

1 mm (μm) =

A

1000 μm

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

1 μm (mm)

A

1/1000 mm

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

1 μm (nm)

A

1000 nm

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

Eukaryote cell range

A

10-100 μm

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

Prokaryote cell size

A

less than 5 μm

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

Mitochondria size

A

1-10 μm

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

chloroplasts (size)

A

2-5μm

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

membrane size

A

7-8 nm

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

ribosomes (size)

A

25 nm

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

Nanometers are used to measure…

A

internal structures of cells and organelles

17
Q

Requirements for natural selection:

A

Variation
Inheritance
Selection
Time

18
Q

Phylogenetic tress

A

group organisms by shared characteristics

19
Q

characteristics include…

A

physical attributes

information sequences

20
Q

Three domains of life:

A

Bacteria
Eukarya
Archaea

21
Q

Endosymbiosis theory states…

A

two key organelles in eukaryotes are derived from bacteria

22
Q

mitochondria are derived from…

A

proteobacteria

23
Q

chloroplasts derive from…

A

cyanobacteria

24
Q

Key differences

Prokaryotic vs Eukaryotic cells

A

membrane enclosed organelles

present in eukaryotes

25
Q

Prokaryotes are in the … domain

A

Bacteria/Archea

26
Q

eukaryotes are in the … domain

27
Q

Prokaryotic cells have…

A

DNA in no nucleus

28
Q

Eukaryotic cells have…

A

DNA throughout nucleus

29
Q

Eukarya domain includes:

A

land plants
animals
fungi

30
Q

Bacteria domain includes:

A

mitochondrion
cyanobacteria
plastids (including chloroplasts)

31
Q 
Characteristics of Bacteria:
Nuclear envelope - 
Membrane-enclosed organelles - 
Peptidoglycan in cell wall - 
circular chromosome - 
growth above 100 degree -
A 
Absent
Absent 
Present 
Present
No
32
Q 
Characteristics of Archaea:
Nuclear envelope - 
Membrane-enclosed organelles - 
Peptidoglycan in cell wall - 
circular chromosome - 
growth above 100 degree -
A 
Absent
Absent
Absent
Present
Some species
33
Q 
Characteristics of Eukarya:
Nuclear envelope - 
Membrane-enclosed organelles - 
Peptidoglycan in cell wall - 
circular chromosome - 
growth above 100 degree -
A 
Present
Present
Absent
Absent
No

CELS 191 (31 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions