Parts Of Cells (chpter 3) Flashcards

1
Q

Plasma membrane

A

Structure: 45% lipid, 50% protein and 5% carbohydrates

Location: entire cell

Function: provides barrier that regulates movement of materials

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

Microvilli

A

Function: tiny folds that increase the surface

Location: outward away from the plasma membrane

Function: increase plasma membrane for surface area for absorption

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

Cytoplasm

A

Structure: gel-like fluid

Location: between plasma and nucleus

Function:region of cell metabolism

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

Cystosol

A

Structure: gel like fluid composed of water and proteins

Location: surrounds organelles

Function: fluid environment for cell function

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

Organelles

A

Structure: formed bodies

Location:

Function: activity that maintain the cell

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

Centrosom

A

Structure: composed of two centrioles

Location: near the nucleus

Functions: participants in cell division, organizes cytoskeleton

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

Cytoskeleton

A

Structure: microtubules

Location: throughout the cytoplasm

Function: positions organelles

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

Cilia

A

Structure: long, slender projections of the membrane

Location: extend outward away from the cell surface

Functions: rhythmic movements propel materials across cell surface

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

Ribosomes

A

Structure: small circle structures made of 60% RNA and 40% protein

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

RER ( rough endoplasmic reticulum)

A

Structure: branching tubles that may be flattened or tubular, with attached ribosomes

Location: extends between nucleus and plasma membrane

Functions: modifies proteins

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

SER (smooth endoplasmic reticulum)

A

Structure: branches tubules that may be flattened or tubular without ribosomes

Location: twist throughout cytoplasm

Function: site of lipid and carbohydrate assembly

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

Mitochondria

A

Structure: sausage shape

Location: randomly throughout cytoplasm

Function: site of energy production by aerobic respiration

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

Golgi apparatus

A

Structure: flattened disc - shaped sacs

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

Vesicles

A

Structure: small sacs surrounded by membrane

Location: randomly throughout cytoplasm

Functions: transport, storage, and digestion,

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

Peroxisome

A

Structure: small circle vesicle

Location: randomly throughout cytoplasm

Functions: contains detoxifying enzymes

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

Lysomes

A

Structure: small circular vesicle

Location: randomly throughout cytoplasm

Function: digestives enzymes

17
Q

Nucleus

A

Structure: composed of double membrane that contains nucleic acids

Location: center of cell

Contains DNA that regulates protein synthesis and cell division. Contains RNA

18
Q

Nuclear envelope

A

Structure: double membrane with structure: large nuclear pores

Location: surrounds nucleoplasm

Function regulates movement of materials between cytoplasms and nucleoplasm

19
Q

Nucleoplasm

A

Structure: gel like fluid containing water, nucleic acids, and proteins

Location: contained within the nuclear envelope

Functions: site of nucleic acids (DNA, and RNA)

20
Q

Nucleoli

A

Structure: small spheres containing RNA and proteins

Locations: group within a nucleoplasm

Function: site of RNA synthesis