SlideShare a Scribd company logo
The Cell and Its Functions
( Cellular Physiology )

- Organization of the cell
Cell membrane
Cytoplasm
Organelles
- Principle organelles include
endoplasmic reticulum
Golgi apparatus
Lyso-Somes
Peroxisomes
secretory vesicles
Mitochondria
centrioles
- Nucleus
contain
- nuclear membrane
- nucleoplasm
- nuleolus
- DNA
In the cell, there are two major parts are
-The nucleus
Separated from the cytoplasm by a nuclear membrane
-The cytoplasm
Separated from the surrounding fluids by a cell membrane
- Protoplasm
A substance that makes up the cell
- It's composed of five substances
1. Water
- 70 - 80 % of most cells
- Function
serves as solvent
essential for many metabolic reactions
- Electrolytes
atoms or molecules with unequal numbers of electrons and protons
Involves in chemical reactions
2. Electrolytes
- definition
important ions that present in the cell
- Function
Provide inorganic chemicals for cellular reactions
They are necessary for operation of some of the cellular mechanisms
- example of essential electrolyte
potassium (K+), magnesium (Mg), phosphate (Po4-3), sulfate (S), bicarbonate (CHO3-), sodium
(Na), chloride (Cl), and calcium (Ca)
- quantities of essential electrolytes ( as low or high )
Large quantities of K+, Mg, Po4-3, S, CHO3Small quantities of Na, Cl, Ca

3. Proteins
- definition
abundant substances in most cells
- percentage
- 10 - 20 % of the cell mass
- types with example and their function
- structure proteins
part of the cell structure
- like those in cell membrane
- globular (functional) proteins
Enzymes
- Catalysts
- Bind temporarily to one or more of the reactions
- Lower amount of activation
Thus, speed up reactions
4. Lipids
- percentage
-

2 % of the cell mass

- Solubility
-

lipids are mainly insoluble in water

- Function
long - term energy storage
- Types
phospholipids and cholestriol triglycerides (neutral fat)
- Structure
messangers
hormones
play roles in communication
5. Carbohydrates
- percentage
- 1 % of the cell mass
- except
muscle cell
- 3%
liver cell
- 6%
- Function
- nutrition of cell
- little structural function
- Common forms of carbohydrate
In form of dissolved glucose
Stored in the form of glycogen
- Insoluble polymer of glucose
Can be depolymerized
- Membranous Structures of the Cell
- Membranes include
Cell membrane
Nuclear membrane
Membrane of the endoplasmic reticulum
Membrane of the Golgi apparatus
Membrane of the mitochondria
Membrane of the lysosomes / peroxisomes
- membrane consists of
Lipids
Proteins
- general functions of membrane
The lipids of the membranes provide barriers
Prevent movement water soluble substances
Protein molecules in membrane often penetrate through the membrane
( Cellular physiology )

More Related Content

What's hot

Cell physiology 2013
Cell physiology 2013Cell physiology 2013
Cell physiology 2013
Sharda Berfect
 
Structure of cell
Structure of cell  Structure of cell
Structure of cell
akash mahadev
 
Introduction to physiology lecture
Introduction to physiology lectureIntroduction to physiology lecture
Introduction to physiology lecture
Lawrence James
 
Cell & cell organelles dr naveen reddy
Cell & cell organelles dr naveen reddyCell & cell organelles dr naveen reddy
Cell & cell organelles dr naveen reddy
Naveen Parvathareddy
 
Functions of cell organelles
Functions of cell organellesFunctions of cell organelles
Functions of cell organelles
Mðhêmmêd-Ãrshãd Mãlîk
 
Organelles and cytoplasm pp
Organelles and cytoplasm ppOrganelles and cytoplasm pp
Organelles and cytoplasm pp
jhoyle
 
HUMAN CELL ANATOMY
HUMAN CELL ANATOMYHUMAN CELL ANATOMY
HUMAN CELL ANATOMY
CHANDANA K
 
Cell organelles
Cell organellesCell organelles
Cell organelles
IIDC
 
Human cell anatomy
Human cell anatomyHuman cell anatomy
Human cell anatomy
saifullah366
 
Cell Anatomy
Cell AnatomyCell Anatomy
Cell Anatomy
raj kumar
 
cytology
cytologycytology
cytology
Reach Na
 
Cytoplasmic organelles
Cytoplasmic organellesCytoplasmic organelles
Cytoplasmic organelles
Priyanka Madhavan
 
Cell organelles
Cell organellesCell organelles
Cell
CellCell
Cytology Class Presentation
Cytology Class PresentationCytology Class Presentation
Cytology Class Presentation
jrfisher78
 
Cell and its organelles
Cell and its organellesCell and its organelles
Cell and its organelles
AQSA SHAHID
 
Cytoplasm
CytoplasmCytoplasm
Chapter 4
Chapter 4Chapter 4
Chapter 4
Tia Hohler
 
Cell Anatomy Mini Lecture
Cell Anatomy Mini LectureCell Anatomy Mini Lecture
Cell Anatomy Mini Lecture
amyfenwickflcc
 
CELL ANATOMY
CELL ANATOMYCELL ANATOMY
CELL ANATOMY
Dr.arun Naragund
 

What's hot (20)

Cell physiology 2013
Cell physiology 2013Cell physiology 2013
Cell physiology 2013
 
Structure of cell
Structure of cell  Structure of cell
Structure of cell
 
Introduction to physiology lecture
Introduction to physiology lectureIntroduction to physiology lecture
Introduction to physiology lecture
 
Cell & cell organelles dr naveen reddy
Cell & cell organelles dr naveen reddyCell & cell organelles dr naveen reddy
Cell & cell organelles dr naveen reddy
 
Functions of cell organelles
Functions of cell organellesFunctions of cell organelles
Functions of cell organelles
 
Organelles and cytoplasm pp
Organelles and cytoplasm ppOrganelles and cytoplasm pp
Organelles and cytoplasm pp
 
HUMAN CELL ANATOMY
HUMAN CELL ANATOMYHUMAN CELL ANATOMY
HUMAN CELL ANATOMY
 
Cell organelles
Cell organellesCell organelles
Cell organelles
 
Human cell anatomy
Human cell anatomyHuman cell anatomy
Human cell anatomy
 
Cell Anatomy
Cell AnatomyCell Anatomy
Cell Anatomy
 
cytology
cytologycytology
cytology
 
Cytoplasmic organelles
Cytoplasmic organellesCytoplasmic organelles
Cytoplasmic organelles
 
Cell organelles
Cell organellesCell organelles
Cell organelles
 
Cell
CellCell
Cell
 
Cytology Class Presentation
Cytology Class PresentationCytology Class Presentation
Cytology Class Presentation
 
Cell and its organelles
Cell and its organellesCell and its organelles
Cell and its organelles
 
Cytoplasm
CytoplasmCytoplasm
Cytoplasm
 
Chapter 4
Chapter 4Chapter 4
Chapter 4
 
Cell Anatomy Mini Lecture
Cell Anatomy Mini LectureCell Anatomy Mini Lecture
Cell Anatomy Mini Lecture
 
CELL ANATOMY
CELL ANATOMYCELL ANATOMY
CELL ANATOMY
 

Similar to ( Cellular physiology )

Cell organells 1
Cell organells 1Cell organells 1
Cell organells 1
med_students0
 
Anatomy and physniology: CELL BIOLOGY.pptx
Anatomy and physniology: CELL BIOLOGY.pptxAnatomy and physniology: CELL BIOLOGY.pptx
Anatomy and physniology: CELL BIOLOGY.pptx
ImmanuelCapurcosDuab
 
Physio psychlecture1
Physio psychlecture1Physio psychlecture1
Physio psychlecture1
Arthur Camplone
 
2.1 Cell Structure And Function Biology Form 4
2.1 Cell Structure And Function Biology Form 42.1 Cell Structure And Function Biology Form 4
2.1 Cell Structure And Function Biology Form 4
g04558297
 
Cellular organization.ppt
Cellular organization.pptCellular organization.ppt
Cellular organization.ppt
SomyaJain603714
 
ppt_bme
ppt_bme ppt_bme
ppt_bme
JemiJavia
 
ppt of cell.pdf
ppt of cell.pdfppt of cell.pdf
ppt of cell.pdf
JemiJavia
 
cellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdfcellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdf
RCGaur1
 
Cell: Structure & Function
Cell: Structure & FunctionCell: Structure & Function
Cell: Structure & Function
Pradeep Singh Narwat
 
cellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdfcellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdf
tiarafowler772
 
Cell Theory.pdf
Cell Theory.pdfCell Theory.pdf
Cell Theory.pdf
alizain9604
 
CELL BIOLOGY
CELL BIOLOGYCELL BIOLOGY
CELL BIOLOGY
YESANNA
 
Cell.pptxggggggggggggggggggggggggggggggg
Cell.pptxgggggggggggggggggggggggggggggggCell.pptxggggggggggggggggggggggggggggggg
Cell.pptxggggggggggggggggggggggggggggggg
yaredmanhailu
 
Cell
CellCell
cell revision.pptx
cell revision.pptxcell revision.pptx
cell revision.pptx
AneelUpadhyay
 
Golgi-appratus - Krebs Cycle.pptx
Golgi-appratus - Krebs Cycle.pptxGolgi-appratus - Krebs Cycle.pptx
Golgi-appratus - Krebs Cycle.pptx
SahraAli14
 
Cell biology
Cell biologyCell biology
Cell biology
UMANG JAGANI
 
Introduction to Biochemistry
Introduction to BiochemistryIntroduction to Biochemistry
Introduction to Biochemistry
ShaliniBarad
 
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
Ahmed Omaar
 
Cell
CellCell
Cell
kh Ripon
 

Similar to ( Cellular physiology ) (20)

Cell organells 1
Cell organells 1Cell organells 1
Cell organells 1
 
Anatomy and physniology: CELL BIOLOGY.pptx
Anatomy and physniology: CELL BIOLOGY.pptxAnatomy and physniology: CELL BIOLOGY.pptx
Anatomy and physniology: CELL BIOLOGY.pptx
 
Physio psychlecture1
Physio psychlecture1Physio psychlecture1
Physio psychlecture1
 
2.1 Cell Structure And Function Biology Form 4
2.1 Cell Structure And Function Biology Form 42.1 Cell Structure And Function Biology Form 4
2.1 Cell Structure And Function Biology Form 4
 
Cellular organization.ppt
Cellular organization.pptCellular organization.ppt
Cellular organization.ppt
 
ppt_bme
ppt_bme ppt_bme
ppt_bme
 
ppt of cell.pdf
ppt of cell.pdfppt of cell.pdf
ppt of cell.pdf
 
cellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdfcellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdf
 
Cell: Structure & Function
Cell: Structure & FunctionCell: Structure & Function
Cell: Structure & Function
 
cellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdfcellstructurefunction-190628175900.pdf
cellstructurefunction-190628175900.pdf
 
Cell Theory.pdf
Cell Theory.pdfCell Theory.pdf
Cell Theory.pdf
 
CELL BIOLOGY
CELL BIOLOGYCELL BIOLOGY
CELL BIOLOGY
 
Cell.pptxggggggggggggggggggggggggggggggg
Cell.pptxgggggggggggggggggggggggggggggggCell.pptxggggggggggggggggggggggggggggggg
Cell.pptxggggggggggggggggggggggggggggggg
 
Cell
CellCell
Cell
 
cell revision.pptx
cell revision.pptxcell revision.pptx
cell revision.pptx
 
Golgi-appratus - Krebs Cycle.pptx
Golgi-appratus - Krebs Cycle.pptxGolgi-appratus - Krebs Cycle.pptx
Golgi-appratus - Krebs Cycle.pptx
 
Cell biology
Cell biologyCell biology
Cell biology
 
Introduction to Biochemistry
Introduction to BiochemistryIntroduction to Biochemistry
Introduction to Biochemistry
 
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
Cell Biology Summary Notes with Somaliland Form 4 Biology Past Exam Practices...
 
Cell
CellCell
Cell
 

Recently uploaded

Lapbook sobre os Regimes Totalitários.pdf
Lapbook sobre os Regimes Totalitários.pdfLapbook sobre os Regimes Totalitários.pdf
Lapbook sobre os Regimes Totalitários.pdf
Jean Carlos Nunes Paixão
 
PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.
Dr. Shivangi Singh Parihar
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
adhitya5119
 
DRUGS AND ITS classification slide share
DRUGS AND ITS classification slide shareDRUGS AND ITS classification slide share
DRUGS AND ITS classification slide share
taiba qazi
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
adhitya5119
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
National Information Standards Organization (NISO)
 
CACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdfCACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdf
camakaiclarkmusic
 
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp NetworkIntroduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
TechSoup
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
NgcHiNguyn25
 
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptxA Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
thanhdowork
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
Jean Carlos Nunes Paixão
 
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHatAzure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
Scholarhat
 
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold MethodHow to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
Celine George
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
AyyanKhan40
 
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptxC1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
mulvey2
 
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
IreneSebastianRueco1
 
How to Fix the Import Error in the Odoo 17
How to Fix the Import Error in the Odoo 17How to Fix the Import Error in the Odoo 17
How to Fix the Import Error in the Odoo 17
Celine George
 
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments UnitDigital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit
chanes7
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
Nicholas Montgomery
 
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat  Leveraging AI for Diversity, Equity, and InclusionExecutive Directors Chat  Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
TechSoup
 

Recently uploaded (20)

Lapbook sobre os Regimes Totalitários.pdf
Lapbook sobre os Regimes Totalitários.pdfLapbook sobre os Regimes Totalitários.pdf
Lapbook sobre os Regimes Totalitários.pdf
 
PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.PCOS corelations and management through Ayurveda.
PCOS corelations and management through Ayurveda.
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
 
DRUGS AND ITS classification slide share
DRUGS AND ITS classification slide shareDRUGS AND ITS classification slide share
DRUGS AND ITS classification slide share
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
 
CACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdfCACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdf
 
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp NetworkIntroduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
 
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptxA Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
 
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHatAzure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
 
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold MethodHow to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
 
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptxC1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
 
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
 
How to Fix the Import Error in the Odoo 17
How to Fix the Import Error in the Odoo 17How to Fix the Import Error in the Odoo 17
How to Fix the Import Error in the Odoo 17
 
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments UnitDigital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit
 
writing about opinions about Australia the movie
writing about opinions about Australia the moviewriting about opinions about Australia the movie
writing about opinions about Australia the movie
 
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat  Leveraging AI for Diversity, Equity, and InclusionExecutive Directors Chat  Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
 

( Cellular physiology )

  • 1. The Cell and Its Functions ( Cellular Physiology ) - Organization of the cell Cell membrane Cytoplasm Organelles - Principle organelles include endoplasmic reticulum Golgi apparatus Lyso-Somes Peroxisomes secretory vesicles Mitochondria centrioles - Nucleus contain - nuclear membrane - nucleoplasm - nuleolus - DNA In the cell, there are two major parts are -The nucleus Separated from the cytoplasm by a nuclear membrane -The cytoplasm Separated from the surrounding fluids by a cell membrane
  • 2. - Protoplasm A substance that makes up the cell - It's composed of five substances 1. Water - 70 - 80 % of most cells - Function serves as solvent essential for many metabolic reactions - Electrolytes atoms or molecules with unequal numbers of electrons and protons Involves in chemical reactions 2. Electrolytes - definition important ions that present in the cell - Function Provide inorganic chemicals for cellular reactions They are necessary for operation of some of the cellular mechanisms - example of essential electrolyte potassium (K+), magnesium (Mg), phosphate (Po4-3), sulfate (S), bicarbonate (CHO3-), sodium (Na), chloride (Cl), and calcium (Ca) - quantities of essential electrolytes ( as low or high ) Large quantities of K+, Mg, Po4-3, S, CHO3Small quantities of Na, Cl, Ca 3. Proteins - definition abundant substances in most cells - percentage - 10 - 20 % of the cell mass
  • 3. - types with example and their function - structure proteins part of the cell structure - like those in cell membrane - globular (functional) proteins Enzymes - Catalysts - Bind temporarily to one or more of the reactions - Lower amount of activation Thus, speed up reactions 4. Lipids - percentage - 2 % of the cell mass - Solubility - lipids are mainly insoluble in water - Function long - term energy storage - Types phospholipids and cholestriol triglycerides (neutral fat) - Structure messangers hormones play roles in communication 5. Carbohydrates - percentage - 1 % of the cell mass - except muscle cell - 3% liver cell - 6%
  • 4. - Function - nutrition of cell - little structural function - Common forms of carbohydrate In form of dissolved glucose Stored in the form of glycogen - Insoluble polymer of glucose Can be depolymerized - Membranous Structures of the Cell - Membranes include Cell membrane Nuclear membrane Membrane of the endoplasmic reticulum Membrane of the Golgi apparatus Membrane of the mitochondria Membrane of the lysosomes / peroxisomes - membrane consists of Lipids Proteins - general functions of membrane The lipids of the membranes provide barriers Prevent movement water soluble substances Protein molecules in membrane often penetrate through the membrane