Cells Revision

39 cards

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Created May 24, 2010
by
jennifer_lord

 

 
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1
These may be attached to ER or free in the cytoplasm
 
Ribisomes
2
How many celss are created form mitosis
 
Two
3
If a human cell has 46 chromosomes, how many chromosomes will be in ach daughter cell?
 
46 Chromesomes
4
What is the function of the nucleolus
 
involved the the manufacture and assembly of the components of ribosomes.
5
What is the function of microtubules?
 

Microtules form from the centriols at the centrosome.

They are made of a spherical...

6
What anchors the spindle?
 
Centremere
7

Cells group together to form______which group together to form_____ which then group together...

 

Tissues

Organs

Systems

8
The appearance may be rough or smooth.
 
Endoplamic Reticulum
9

As a result of mitosis, each new cell has:

 

a) twice as many chromosomes...

 
d) the same number of chomosomes as its parent cell.
10

True or False

 

During metaphase the centromeres of the chomosomes...

 
True
11
Regulates passage of material into and out of the cell.
 
Cell membrane
12
Mebranous sac of digestive enzymes
 
Lysosome
13
What is the function of Rough ER
 

It is externally studded with ribosomes.

 

Sugar groups are attached...

14
what is the function of smooth ER
 

The smooth ER is a membranous system of sacs and tubules.

 

It is free...

15
What moves the chomatids during mitosis
 
Spindle fibers
16
is involves in enrgy formation (ATP) for the cell
 
Mitochondria
17
The process by which a cell physically divides into two daughter cells
 
Mitosis
18
What are the four phases of mitosis
 

Metaphase

Anaphase

Telophase

Prophase

 

19
What is the function of lysosomes
 

Lysosomes are membranous sacs that contain acid hydrolases.

 

These...

20
What is the function of Microfilaments
 

Microfilaments are made from small fibrous protein called actin.

 

They...

21
what structure holds the individual chomatids together
 
Centomere
22
what is the function of the nuclear envelope?
 

The nuclear envelope is a double membrane structure which is pierced by the pores.

The...

23
What is the function of centrioles?
 

These paired cylindrical bodies are each composed of nine triplets of mircrotubules.


They...

24
What is the function of ribosomes?
 

Ribosomes are dense particles that consist of two subunits, each cimposed of ribosomal RNA...

25
What is the Nuleus Function?
 

Within the nucleus is DNA resposible for providing the cell with its unique characteristics.

The...

26
What is the function of mitochondria
 

They are involved in aerobic respiration, the process by which chemical energy is made available...

27
What is the function of golgi apparatus?
 

Stack of smooth membrane sacs and associated vesicles that are close to the nuclus.

 

The...

28
What is the function of the plasma membrane
 

This membrane encloses the cell and is made from a bi-layer of phospholipids and cholesterol.

 

it...

29
Label the diagram
 

1-Mitochondria

2- Rough ER

3- Nucleus

4- Nuclear pores

5-...

30
The plasma membrane consists of
a)mostly proteins.
b)entirely of phospholipids.
c)phospholipids,...
 
phospholipids, proteins, and carbohydrates
31

The cytoplasm is the term for
a) all cell organelles combined.
b) microtubules and...

 
the cytosol plus the cell organelles and inclusions

32
3. Endocytosis is an example of
a) excretion.
b) passive transport.
c) active transport.
d)...
 
active transport
33

The movement of water across a selectively

a)permeable membrane is called
b)osmosis.
c)...

 
osmosis
34
Which of the following is necessary for diffusion to occur?
a) a concentration gradient.
b)...
 
a concentration gradient
35
A red blood cell placed in a hypotonic solution
a) loses water.
b) gains water.
c)...
 
gains water
36
Chromatin is found in the
a) nucleus.
b) ribosomes.
c) mitochondria.
d) lysosomes.
 
nucleus
37
The packaging and sorting of proteins is the function of the
a) endoplasmic reticulum.
b)...
 
Golgi apparatus
38
Protein synthesis occurs at the
a) mitochondria.
b) Golgi apparatus.
c) ribosomes.
d)...
 
ribosomes
39
Which of the following are considered the "powerhouses" of the cell?
a) lysosomes.
b)...
 
mitochondria

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