Brainscape's Knowledge GenomeTM

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


See full index

Biology > Cell Structure > Flashcards

Cell Structure Flashcards

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

Function of the nucleus

A

Site of DNA replication and transcription
Contains the genetic code

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

Features of the nucleus ( 5)

A

Nuclear envelope - surrounds the nucleus I
Nuclear pores between nuclear envelopes
Nucleoplasm - jelly like substance in the nucleus
Chromatin - protein bound in linear DNA
Nucleolus - structure that makes ribosomes

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

Function of the mitochondria

A

Site of aerobic respiration

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

Features of the mitochondria

A

Contains DNA ( code for enzymes in respiration)
Has a double membrane
Contains its own proteins + lipids

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

Function of endoplasmic reticulum (rough)

A

Site of protein synthesis
Cisternae - fluid filled sac

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

Function of endoplasmic reticulum (smooth)

A

Synthesises and processes lipids + carbohydrates

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

Features of ribosomes

A

No membrane
70s = prokaryotic cell, mitochondria, chloroplast
80s = eukaryotic cell
Made of proteins and RNA

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

Function of Golgi apparatus

A

Process and package new proteins and lipids
Make lysosomes

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

Function of lysosomes

A

Fuse with vesicles containing hydrolytic enzymes (lysozyme) .
Break down worn out cells (autolysis)
Digest worn out organelles

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

Function of cell membrane (plasma membrane)

A

Controls movement in and out of cell

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

Features of plasma membrane

A

Phospholipid bilayer
Proteins embedded within it (carrier /channel proteins)
Antigens on the outside of membrane

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

Function of chloroplast

A

Site of photosynthesis (occurs in the grana and stroma)

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

Features of the chloroplast

A

Stroma- liquid containing enzymes
Contains circular DNA and ribosomes (70s)
Lamella - a membrane that links thylakoid

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

Function of cell wall

A

Strengthens the cell to prevent change due osmotic pressure

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

Features of cell wall

A

Plant: mainly made of cellulose and microfibrils
Fungi: made of chitin (contains more nitrogen)

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

Function of vacuole

A

Maintains pressure and turgidity of cell
Temporary store of sugars and amino acids
Membrane = tonoplast

17
Q

Features of viruses

A

Acellular-not a cell ( nucleic acid surrounded by proteins)
Neither prokaryotic or eukaryotic (obligate intracellular parasite)
Not living things
Smaller than bacteria (less than 0.1 micrometers)

18
Q

How do viruses reproduce?

A

All viruses invade and reproduce in host cells

19
Q

Structures of viruses

A

RNA: genetic information
Reverse transcriptase: enzyme for replication
Capsid: protein coat containing nucleic acid.
Envelope: outer layer made of membrane from host cells
Glycoprotein: allows virus to attach to host cell

Biology (9 decks)

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