Chapter 4B A Tour of the Cell. Other Membranous Organelles, I Mitochondria - quantity in cell correlated with metabolic activity (the more active, the.

Slides:



Advertisements
Similar presentations
THE CELL.
Advertisements

Cytoskeleton & Extracellular Components The cytoskeleton is a network of fibers that extend through the cytoplasm in the cell. There are 3 basic structures.
Chapter 4 A Tour of the Cell Fine Points of the Chapter.
Concept 6.7: Extracellular components and connections between cells help coordinate cellular activities Most cells synthesize and secrete materials that.
Dr. Laurie Solis AP Biology 6.7.
E XTRACELLULAR C OMPONENTS AND C ONNECTIONS B ETWEEN C ELLS H ELP C OORDINATE C ELLULAR A CTIVITIES Kate Rowe, Kylina John, Jacqueline Enriquez.
Concept 4.6: The cytoskeleton is a network of fibers that organizes structures and activities in the cell The cytoskeleton is a network of fibers extending.
Diploma in Microbiology MIC102 CHAPTER 1 The Cell Membrane & The Cell Wall Lecturer: Pn Aslizah Bt Mohd Aris /
CHAPTER 3 A TOUR OF THE CELL Cell Surfaces and Junctions 1.Plant cells are encased by cell walls 2. The extracellular matrix (ECM) of animal cells functions.
Cytoskeleton, Cell Walls, & ECM
The Structure of Cell: Part II.
Chapter 7. The Cell: Cytoskeleton
Read Chapter 4 (all of it) you have a test soon!.
Concept 6.6: The cytoskeleton is a network of fibers that organizes structures and activities in the cell The cytoskeleton is a network of fibers extending.
Fig. 6-7 TEM of a plasma membrane (a) (b) Structure of the plasma membrane Outside of cell Inside of cell 0.1 µm Hydrophilic region Hydrophobic region.
Chapter 4 A Tour of the Cell. Cytology: science/study of cells Light microscopy resolving power = measure of clarity Electron microscopy TEM = electron.
Energy Organelles & the Cytoskeleton Section 6.5, 6.6, and 6.7.
Cells: INTRODUCTION. I. Overview Prokaryotic vs. Eukaryotic cells –A. Prokaryotic Cells 1. Small, 1-10 micrometers in diameter 2. Lack membrane-enclosed.
Chapter 6 A Tour of the Cell.
Organization of the Cell
Chapter 6 A Tour of the Cell. Things to Know The differences between eukaryotic and prokaryotic cells The structure and function of organelles common.
Extracellular components and connections between cells.
Concept 6.7: Extracellular components and connections between cells help coordinate cellular activities Most cells synthesize and secrete materials that.
Cytoskeleton & Extracellular Components The cytoskeleton is a network of fibers that extend through the cytoplasm in the cell. There are 3 basic structures.
A TOUR OF THE CELL Chapter 6. The Fundamental Units of Life What do a small compartment in a honeycomb, a prison room, and the area covered by a mobile.
Chapter 4 Cytoskeleton, Cell wall and EMC. You Must Know The structure and function of the cytoskeleton. (You will only be tested on the parts of the.
AP Biology Chapter 7. The Cell: Cytoskeleton AP Biology Cytoskeleton  Function  structural support  maintains shape of cell  provides anchorage for.
A Tour of the Cell Chapter 6. Overview: The Importance of Cells  Cell Theory: All organisms are made of cells  The cell is the simplest collection of.
CELLS CELLS. CELL THEORY Living things are composed of cells (multicellular organisms) Cells are the smallest unit of life (single celled organisms –
CHAPTER 7 A TOUR OF THE CELL Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section G: Cell Surfaces and Junctions 1.Plant cells.
Chapter 6 Section 6.7. Vocabulary You Need To Know Cell wall Primary Cell Wall Middle Lamella Secondary Cell Wall ECM(Extracellular matrix) Collagen Proteoglycans.
A Tour of the Cell. Cytology: science/study of cells Light microscopy resolving power: measure of clarity Electron microscopy TEM (transmission): electron.
A Tour of the Cell: Part Deux edu/content/begin/cells/i nsideacell/ edu/content/begin/cells/i.
The Cell: Cytoskeleton. Cytoskeleton Function Function –structural support maintains shape of cell maintains shape of cell provides anchorage for organelles.
N Chapter 6, II ~ A Tour of the Cell. Other membranous organelles, I n Mitochondria – Quantity in cell correlated with metabolic activity; – Cellular.
AP Exam Review Cells. Prokaryotic vs. Eukaryotic Cells Prokaryote Prokaryote “before” “nucleus” “before” “nucleus” Bacteria Bacteria DNA is concentrated.
Cells… part II. Converting Energy n Mitochondria convert sugars and fats to NRG (ATP) with the help of oxygen – Cellular respiration n Chloroplasts convert.
Ch.7 A Tour of the Cell. Nucleus Genetic material... chromatin chromosomesnucleolus: rRNA; ribosome synthesis Double membrane envelope with pores Protein.
Chapter 6 A (more detailed) Tour of the Cell. Nucleus: Chromatin v. chromosomes Nucleolus synthesizes ribosomes Nuclear pores.
Cells Chapter 7. The size range of cells Why are cells so small? Small cells have a high surface area to volume ratio which allows more stuff to move.
Unit 2 – The Cell n Chapter 7, II ~ A Tour of the Cell.
AP Biology The Cell Wall. AP Biology Cell Walls of Plants  An extracellular structure that distinguishes plant cells from animal cells  Prokaryotes,
Problem #1 of the day: What macromolecule groups do these molecules belong to?
Name Ideas??? Aphrodite 2 Naomi 2 Javier 4/2 Esteban 8/7 Lana 1 Neymar 1 Messi 1 Juno 3/5 Brooklyn 1.
Figure 7.4 A prokaryotic cell. Cell Sizes Average Animal Cell – 15 microns Average Plant Cell – 40 microns Average Eukaryotic Cell : microns Average.
LE Plasma membrane Cytoplasm DNA Ancestral prokaryote Endoplasmic reticulum Nuclear envelope Infolding of plasma membrane Engulfing of aerobic heterotrophic.
Lecture #3Date _________ Chapter 7~ A Tour of the Cell Chapter 7~ A Tour of the Cell.
Extra cellular components
Cells Part 2.
Here it is…the structure!...the function!
Chapter 6 ~ A Tour of the Cell
CHAPTER 7 A TOUR OF THE CELL Section G: Cell Surfaces and Junctions
The Cell: Cytoskeleton
Lecture #1 Chapter 6~ A Tour of the Cell.
Chapter 6 A Tour of the Cell.
Chapter 6 Part B A tour of The Cell.
Mitochondria & Chloroplasts
A Tour of the Cell: Cell Organelles
Cytoskeleton, Cell wall and EMC
4.15 Chloroplasts convert solar energy to chemical energy
Notes Ch. 6 part 2.
Inner Membrane Folded into cristae.
Stupendous Cells.
A Tour of the Cell.
Cells… part II.
Mitochondria and Chloroplast
Concept 6.5: Mitochondria and chloroplasts change energy from one form to another Mitochondria are the sites of cellular respiration, a metabolic process.
Cells Cells.
Ch. 7: A tour of the cell.
Chapter 6 Part B A tour of The Cell.
Presentation transcript:

Chapter 4B A Tour of the Cell

Other Membranous Organelles, I Mitochondria - quantity in cell correlated with metabolic activity (the more active, the more mitochondria) Site of cellular respiration Double membranes (phospholipid); cristae/matrix Intermembrane space contain own DNA

Other Membranous Organelles, II Chloroplast - type of plastid Double membranous Thylakoids (flattened disks) Grana (stacked thylakoids) Stroma – gel like material around grana Photosynthesis Own DNA

Peroxisomes Single membrane Produce hydrogen peroxide in cells Metabolism of fatty acids; detoxification of alcohol (liver) Hydrogen peroxide then converted to water by catalase

The Cytoskeleton Fibrous network in cytoplasm Support, cell motility, biochemical regulation Microtubules - thickest; tubulin protein; give shape, support, transport, chromosome separation Microfilaments - thinnest; actin protein filaments; motility, cell division, shape Intermediate filaments - middle diameter; made of keratin protein; shape, nucleus anchorage

Centrosomes/Centrioles Centrosome - region near nucleus containing the centrioles Centrioles - nine sets of triplet microtubules in a ring;used in cell replication; only in animal cells

Cilia/flagella Locomotive appendages Ultrastructure: “9+2” 9 doublets of microtubules in a ring with 2 single microtubules in center Connected by radial spokes Anchored by basal body Made of dynein protein

Cell surfaces & junctions Cell wall – in plant, not animal cells Protection, shape, regulation Plant cell: Primary cell wall produced first Middle lamella of pectin (polysaccharide); holds cells together In some plants, a secondary cell wall forms; strong durable matrix; wood (between plasma membrane and primary cell wall)

Extracellular matrix (ECM) Glycoproteins - proteins covalently bonded to carbohydrate Collagen (50% of protein in human body); embedded in proteoglycan (another glycoprotein-95% carbohydrate) Fibronectins - bind to receptor proteins in plasma membrane called integrins (cell communication)

Intracellular junctions PLANTS: Plasmodesmata: cell wall perforations; water and solute passage in plants ANIMALS: Tight junctions: fusion of neighboring cells; prevents leakage between cells Desmosomes: riveted, anchoring junction; strong sheets of cells Gap junctions: cytoplasmic channels; allows passage of materials or current between cells

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.