Brainscape's Knowledge GenomeTM

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


See full index

Biology - Unit 1 > Prokaryotes and Eukaryotes > Flashcards

Prokaryotes and Eukaryotes Flashcards

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

What type of cells evolved first?

A

Prokaryotic

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

What don’t prokaryotic cells have?

A

Organelles bound by membranes

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

What do prokaryotic cells have instead of a membrane bound nucleus?

A

One circular chromosome suspended in the cytoplasm.

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

What are plasmids?

A

Smaller rings of DNA

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

What is a nucleoid?

A

A singular circular DNA molecule that is condensed?

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

What do the folds in the cell membrane do?

A

Helps localise metabolism

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

What are the pilli used for?

A

Used for exchange of plasmids. Used to attach to surfaces

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

What does the flagellum do?

A

Used for locomotion

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

What is the mucilaginous capsule?

A

Jelly-like polysaccharide helps the cell to adhere to surfaces

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

What is the peptidogclycon wall made of ?

A

A matrix of polysaccharides linked by short polypeptide chains.

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

What does the peptidoglycon wall do?

A

Maintains the cells shape and prevents excessive uptake of water.

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

What does the eukaryotic nuclear membrane consist of?

A

A double layer of membranes with pores to let very late molecules pass through

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

What is eukaryote DNA wrapped around?

A

(Positively charged) Histone proteins

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

What are nucleosomes?

A

The combination of DNA wrapped around histone proteins

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

What is the cytosol?

A

The liquid part of the membrane

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

What is the cytosol organised by?

A

endomembranes

17
Q

What do endomembranes do?

A

Compartmentalise different parts of the metabolism

18
Q

How many membranes do micro bodies have?

A

1

19
Q

How are micro bodies formed?

A

By budding from the ER or golgi apparatus

20
Q

Give an example of a microbody

A

Lysosomes

21
Q

What are microvilli?

A

Membrane extensions that greatly increase the surface area for absorption

22
Q

What does MTOC stand for?

A

Microtubule organising centre

23
Q

What does the central vacuole do?

A

Stores sugars ions and pigments as well as maintaining the turgidity of the cell

24
Q

What does the cell wall do?

A

Maintains the cells shape as well as preventing excessive uptake of water.

25
Q

What is the middle lamellae composed of

A

Pectin

26
Q

What does the middle lamellae do?

A

Glues neighbouring cells together at their cell walls

27
Q

What are plasmodesmata?

A

Cytoplasmic links between neighbouring cells.

28
Q

Which organelles in plants have a double membrane?

A

Nucleus, Mitochondria, Chloroplast

Biology - Unit 1 (22 decks)

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