Chapter 3- Structure And Function Of Cells Flashcards

1
Q

what surronds the nucleus

A

nuclear envelope

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

types of electon microscope

A
  • scanning electon microscope (SEM)
  • transmission electron microscope
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

the cell wall does what for the plant cell

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

What does selectively permeable mean?

A

It only let’s certain molecules in and out of the cell

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

What is the endoplasmic recticulum made up of

A

Membranous tubes and sacs

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

where does the golgi apparatus recieve material form?

A

rough and smoother

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

in a compound light microscope the…

A

speciem is mounted on a glass slide

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

when a cell is about to divide…

A

the chromatin condenses to form chromosomes

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

what is the cell wall?

A

a rigid covering found outside the cell membrane made up of cellulose

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

what are found in plants but not in animal cells

A
  • central vacuole
  • cell wall
  • chloroplast
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The ______ to ________ must be _____ in order to meet the needs of the cell

A

Surface area; volume ratio; large

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

Where would the head of the phospholipids face and face?

A

Will face towards the water found inside and outside of the cell

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

Locate the inner membrane space

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

Cell shape

A

Come in a variety of shapes

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

State the third part of the cell theory

A

Cells come only from the reproduction of existing cells

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

What does the cytoskeleton do?

A

it maintains cell shape, anchors organelles, and allows them to move within the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is cytoplasm?

A

The liquid portion of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

when found in small numbers but long they are

A

flagella (sperm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The membrane can move ….

A

Laterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does mitochondria do?

A

Takes food energy and converts it into ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

types of microscopes

A
  • compund light
  • electon
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

name the types of cytoskeleton

A
  • microfilaments (small)
  • intermediate filaments (medium)
  • microtuble (larger)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is the central vacuole?

A

fluid filled organelle that stores water, enzymes, and metabolic wastes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Major component of phospholipids

A

Tails of phospholipids, fatty acid, nonpolor and hydrophobic tails will not interact with H2O inside/outside cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what does turgor pressure do for the plants
allows plants to stand upright
26
The membrane is not
Completely rigid
27
The cell membrane is called the ______ \_\_\_\_\_\_\_\_ and it is __ layers of \_\_\_\_\_\_\_\_
Phospholipid bilayer; 2; phospholipids
28
The rough ER has what attached to it
Ribosomes
29
Where is the inner membrane space located?
Between the outer membrane and inner membrane
30
the smooth er is involved in.....
* the making of lipids * the regulation of calcium levels in muscle cells * the breakdown of toxic substances in the liver
31
what is another name for turgor pressure
water pressure
32
Size of cells
Most cells can only be seen with a microscope
33
Skin cells are....
Flat
34
What are the folds of the inner membrane called?
Cristae
35
give two examples of where cilia are found?
paramecium and human respiratory
36
Who observed what in 1665?
Robert Hooke observed cork
37
locate the outer membrane
38
locate the inner membrane?
39
What is the saying about cell shape?
Structure fits function or shape reflects function
40
what does the nucleus contain
chromatin(DNA and protein)
41
What are the ribosome
Made up of proteins and RNA \*site where proteins are made\*
42
What is the mitochondria ?
Energy producers of the cell
43
Cell diversity
Not all cells are alike; at least 200 kinds of cells
44
What does lysosomes have to digest macromolecules?
Hydrolytic enzymes
45
what are cilia/flagella?
hair-like organelles that extend from the surface of the cell
46
Lysosomes digest ___ \_\_\_\_\_, ______ and _______ ingested by the cell
old organells, vriuses and bacteria
47
what doe prokaryotes and eukaryotes have in common
* ribosomes * plasma membrane
48
electon microscopes are used to view speciem beyond what magnification
2,000x
49
what does the central vacoule provide plants
turgor pressure
50
The rough er is attached to
The nucleus
51
The smooth ER is not covered in
Ribosome
52
How many parts does the cell theory have?
Three
53
What is the matrix?
The space in of the inner membrane
54
define microscope
an instrument used to magnify objects
55
Locate the matrix?
56
what does the golgi apparatus do?
modifies and repackages proteins and lipids for export
57
What is made in the rough ER
Proteins that will be transported to the Golgi apparatus
58
Who was the first to observe living cells?
Anton van Leeuwenhoek
59
Where can the ribosomes be located
• floating in the cytoplasm • attached to the endoplasmic reticulum (ER)
60
When found in great numbers but are short they are
cilia
61
Nerve cells have....
Large extensions
62
How many mitochondria will cells have that require a lot of energy have?
Thousand
63
What makes the cell membrane more rigid?
Cholesterol
64
Internal organization
Cells contain a variety of organelles
65
Another name for cell membrane
Fluid mosaic model
66
Heads of the phospholipids are
Hydrophilic
67
Name the second part of the cell theory
Cells are the basic units of structure and function in organisms
68
The membrane is "\_\_\_\_\_"
Selectively permeable
69
Name the first part of the cell theory
All living things are made up of one or more cells
70
Cell membrane
Allows nutrients to enter and wastes to leave
71
what takes place in the chloroplast
photosynthesis
72
what do the cilis and flagella assist in?
cell movement
73
define magnification
making an object look larger than its actual size
74
Hydrolysis
To break down with water
75
define resolution
measure of clarity of an image
76
What is internal organization?
A membrane- bound that performs a specific function
77
what are lysosome?
vesicles that hold enzymes that digest proteins, carbohydrates, lipids, DNA, and RNA
78
a central vacoule could take up to what percent of the plant cell
90