Download presentation
Presentation is loading. Please wait.
1
http://www.youtube.com/watch?v=qc8hUUY_exQ Virus explores cell interactive http://www.disclose.tv/action/viewvideo/32619/Harvard___A_Journey_Through_Your_Body/ Cool cell animation
2
RELATIVE SIZES OF THINGS
5
CHARACTERISTICS OF PROKARYOTIC CELLS no membrane bound organelles (e.g. nucleus) have a cell wall but different from plant cell wall e.g. bacteria AUTOTROPHS an organism able to make its own food chemoautotrophs HETEROTROPHS need to consume food for energy
6
EVOLUTION OF EUKARYOTIC CELLS FROM PROKARYOTIC CELLS autotroph became heterotroph once lost cell wall Membrane bound organelles formed Consumed mitochondria/chloro plast type prokaryotes Formed endosymbiotic relationships
7
Neutrophil migration across bone marrow
8
B cell Portion of pancreas cell
10
NUCLEUS nucleolus (pl. nucleoli) nucleoplasm chromatin nuclear membrane nuclear pore
12
Alzheimer's and the ER ER recognizes and targets excess proteins for degradation. If overloaded, a stress response is switched on. Prolonged stress leads to cell death and neuronal loss in Alzheimer's (who have excess protein in brain)
13
GOLGI APPARATUS functional and structural impairments have been found in Alzheimer’s patients
14
THE MAKING, MODIFYING, AND TRANSPORT OF PROTEINS Info to make proteins Ribosomes on RER make primary structure of proteins GA modifies proteins Vessicle transports proteins e.g. lysosome
15
LYSOSOMES AT WORK Tay Sachs disease has dysfunctional lysosomes leads to paralysis, dementia, blindness, and death Common in Quebeckers, jews
16
MITOCHONDRION
18
Tracking hominid migration through mitochondrial DNA
19
Mitochondria and Aging
20
CENTROSOME WITH CENTRIOLES
21
MICROVILLI
22
flagelli cillia
24
cell wall membrane chloroplast mitochondrion vacuole (tonoplast)
25
CHLOROPLAST
26
JUNCTIONS BETWEEN CELLS Tight junction Gap junction
27
Desmosomes
28
Cell membrane Cell wall cytoplasm ribosomes nucleus Golgi apparatus mitochondrion ER chloroplast centriole lysosome prokaryote animal plant
29
TYPES OF ANIMAL CELLS A. Epithelial cells
30
B. Blood or Vascular Cells
31
C. Nervous
32
D. Muscle
33
E. Connective and Supportive
34
PLANT CELL TYPES
35
MERISTEMATIC CELLS Cell division takes place here
36
PARENCHYMA CELLS Variety of functions in the plant
37
COLLENCHYMA alive SCLERENCHYMA dead
38
Homework Choose one type of cell and discuss how it is structured to perform is function. Identify any organelles that are particularly important for that type of cell.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.