Brainscape's Knowledge GenomeTM

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


See full index

biology ocr a > cell structure > Flashcards

cell structure Flashcards

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

What are the 2 lenses that a compound light microscope have?

A

objective lens

eyepiece lens

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

How does a Transmission electron microscope work?

A

-A beam of electrons is transmitted through a specimen to produce an image.

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

What is the best resolution for a TEM?

A

0.5nm

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

How does a scanning electron microscope work?

A

Beam of electron is sent across the surface of the specimen and reflected electrons are collected.

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

What contains the genetic information of DNA molecules?

A

Nucleus

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

What does the nucleus control?

A

Metabolic activities

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

What is the area within the nucleus responsible for producing ribosomes called?

A

Nucleolus

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

What is the Cristae?

A

highly folded inner membrane of the mitochondria

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

What are vesicles?

A

Membranous sacs that have storage and transport roles

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

what is the function of lysosomes

A

they contain hydrologic enzymes to break down waste in the cell

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

What are the 3 components of the cytoskelten?

A
  1. microfilaments
  2. mircotubles
  3. intermediate fibres
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the microfilaments responsible for?

A

cell movement and cell contraction

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

What are spindal fibres made from?

A

Microtubles

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

what are intermediate fibres responsible for?

A

mechanical strength

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

What do 2 associated centrioles form?

A

centrosome

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

What is the function of flagella?

A

cell motility and sensory organelles

17
Q

What organelles are involved in protein synthesis?

A

smooth ER

Rough ER

18
Q

what is SER responsible for?

A

lipid and carbohydrate synthesis and storage

19
Q

What is located on the outside of the RER

A

ribosomes

20
Q

What is RER responsible for?

A

Synthesis and transport of proteins

21
Q

Are ribosomes surrounded by a membrane?

A

no

22
Q

What are ribosomes the site of ?

A

Protein synthesis

23
Q

What is the Golgi apparatus made from?

A

cisternae

24
Q

What is the role of the Golgi apparatus?

A

modifying and packaging proteins into vesicles

25
Q

Cellulose cell wall is freely…

A

permeable

26
Q

What are vacuoles?

A

membrane lined sacs in the cytoplasm

27
Q

What maintains that turgor of a plant cell?

A

Vacuole

28
Q

What is the membrane of a vacuoles called

A

Tonoplast

29
Q

What is the fluid called in the chloroplast?

A

stroma

30
Q

What are the internal networks of membranes in the chloroplasts called?

A

Thylakiods

31
Q

What are several Thylakiods stacked together called?

A

Granum

biology ocr a (8 decks)

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