Brainscape's Knowledge GenomeTM

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


See full index

Science Tlevel > cells > Flashcards

cells Flashcards

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

what is the cell cycle?

A

set of steps that take place in cell division

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

what is an organelle?

A

part of a cell and they all take part in the cell cycle

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

what cells have a fast cell cycle?

A

hair, blood, skin, digestive cells

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

what are the 3 stages of the cell cycle?

A

interphase
mitosis
cytokinesis

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

what is a cell?

A

the smallest functional unit of life that can function on its own

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

what does semi-permeable mean?

A

only lets certain things through into the cell (oxygen and carbon dioxide)

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

what is the cell membrane?

A

semi-permeable boundary between a cell
control of substance in and out of the cell
site of antigens

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

what is a lipid bilayer?

A

allows small molecules through large molecules

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

what is transcription?

A

a specific section of the cells DNA is ‘copied’ using a molecule of mRNA

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

what is translation?

A

ribosomes take mRNA and use it as a blueprint to create a new molecule

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

what are rough endoplasmic reticulums?

A

covered in ribosomes; sends proteins to destination

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

what are smooth endoplasmic reticulums?

A

lacks ribosomes; detoxify cells and transport proteins

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

what are golgi apparatus?

A

protein received from the ER are further processed to their destination

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

what is exocytosis?

A

contents of a cells vacuole are released into the exterior

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

what are lysosomes?

A

specialised vesicles that contain powerful enzymes

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

what do mitochondria do?

A

generate energy for their host cell using the process of aerobic respiration

17
Q

what does aerobic respiration produce?

A

uses glucose molecules and oxygen to generate ATP

18
Q

what are 4 types of filament in the cytoskeleton?

A

actin, intermediate, microtubles, centrioles

19
Q

what are actin/microfilaments?

A

fine thread like structures allowing the cell to change shape and contract

20
Q

what are intermediate filaments?

A

slightly thicker and provide tensile strength

21
Q

what are microtubules?

A

hollow tubes act as a scaffold for the cell and provide sets of ‘tracks’ for organelles and vesicles to move along

22
Q

what are centrioles?

A

organise the cells microbes and also produce the cilia and flagella in cells which feature them

23
Q

what is diffusion?

A

the movement of particles from an area of high to low concentration

24
Q

what is osmosis?

A

the net movement of water from an area of high to low water potential

25
Q

what is facilitated diffusion?

A

happens by channel or carrier proteins

26
Q

what is a eukaryotic cell?

A

plant, yeast, animal

27
Q

what is a prokaryotic cell?

A

bacteria

28
Q

what is the specialised function of the ova?

A

Cytoplasm contains nutrients for growth of the developing embryo.
Zona pellucidia (barrier to prevent sperm)
Corona Radiata (supply nutrients to cell)

29
Q

what is the specialised function of sperm cells?

A

fertilisation of the female egg

30
Q

what is the specialised function of neurone cells?

A

responsible for transmitting electrical and chemical signals in the nervous system

31
Q

what are the specialised function of squamous epithelial cells?

A

boundary cells
single layer (capillaries) or multiple layers (skin)
flat, scale shaped

32
Q

what is the specialised function of striated muscle cells?

A

long multi-nucleated cells
attached to bone by tendons
under conscious control
contract

33
Q

what is chromatin?

A

long entangled structures of chromosomes

34
Q

what are chromosomes?

A

chromatin condenses to make chromosomes which consist of DNA

35
Q

why do cells need to divide?

A

to replace dead cells for growth and repair

Science Tlevel (18 decks)

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