Brainscape's Knowledge GenomeTM

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


See full index

BIOLOGY > TOPIC 1 CELL BIOLOGY > Flashcards

TOPIC 1 CELL BIOLOGY Flashcards

1
Q

Cell theory

A

All living things are composed of cells
The cell is the smallest unit of life
Cells only arise from pre existing cells

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

Cells that don’t conform to cell theory

A

Striated muscle- They have multiple nuclei
Giant Algae- Grows to very large sizes challenging larger organisms being made of microscopic ones

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

Calculation of Magnification

A

Magnification= Image size / actual size

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

Calculation of Actual size

A

Actual size= Image size / magnification

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

Definition of Cell Differentiation

A

Process during development where newly formed cells become more specialized as they mature

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

Draw Prokaryotic cell and label

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

Draw a Eukaryotic cell and label

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

Draw a plant cell

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

Prokaryotic cell

A

Lack a nucleus
Divide by Binary Fission
DNA a single circular loop

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

Process of Binary Fission

A

Circular DNA is copied in response to signal
Two DNA attach to the membrane
Membrane elongates and pinches off forming two cells.

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

Eukaryotes

A

Contain a Nucleus

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

Advantages of electron microscopes

A

Higher range of magnification
Higher resolution

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

Disadvantage of electron microscope

A

Cant display living species in natural color

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

Definition of an organelle

A

Specialized sub structure within a cell

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

Example of organelles

A

Everything- Ribosomes and Plasma membrane
Plants only- Chloroplast and Cell Wall
Animal only- Lyosome

Others include mitochondria and Nucleus

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

Difference between Eukaryotic and Prokaryotic

A

NO Nucleus vs nucleus
Binary fission vs Meiosis
70s ribosomes vs 80s ribosomes

17
Q

Structure of a Phospholipid

A

Hydrophilic head composed of glycerol and phosphate
2 Hydrophobic tail composed of fatty acid

18
Q

Properties of the Phospholipid bilayer

A

Held together by weak hydrophobic interactions between tails

Restrict passage of substances

19
Q

Draw the Fluid-Mosaic model

A
20
Q

Integral Protein

A

Permanently attached to the membrane

21
Q

Peripheral protein

A

Temporarily attached to the membrane

22
Q

Purpose of Cholesterol

A

Functions to maintain integrity and mechanical stability

Interacts with phospholipid tails to recuce fluidity in the cell

23
Q

Diffusion

A

The net movement of molecules from a high to a low concentration

24
Q

Osmosis

A

The net movement of water across a semi-permeable membrane from low solute concentration to high solute concentration

25
Q

Meaning of hypertonic

A

High solute concentration which gains water

26
Q

Hypotonic

A

Low solute concentration which loses water

27
Q

Isotonic

A

Same solute concentration which has no movement of water

28
Q

Active Transport

A

Requires energy and moves against the concentration gradient

BIOLOGY (6 decks)

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