Diversity Of Cell Life

0 %
100 %
Information about Diversity Of Cell Life

Published on February 18, 2008

Author: itamarita1984

Source: slideshare.net

Description

chapter 7 section 4 notes

Diversity of Cell Life Chapter 7 Section 4 Pp 190-193

All living things…. Composed of cell(s) Same basic chemistry Same organelles Follow same genetic code But are all living things the same?

Composed of cell(s)

Same basic chemistry

Same organelles

Follow same genetic code

But are all living things the same?

NO! Differences come from: Ways cells are specialized to do certain jobs Way cells work with other cells to make a multicellular organism

Differences come from:

Ways cells are specialized to do certain jobs

Way cells work with other cells to make a multicellular organism

Unicellular Make up most life on earth When a cell IS the organism Single-celled/ unicellular Do everything living thing does: Respond to stimuli Grow Reproduce Transform energy

Make up most life on earth

When a cell IS the organism

Single-celled/ unicellular

Do everything living thing does:

Respond to stimuli

Grow

Reproduce

Transform energy

Yeast

Volvox aureus

Leptospira interrogans

Multicellular Organism Organism made up of many cells Variety Depend on 2 major things about cells: Communication Cooperation Cell Specialization Process in which cells throughout an organism perform different tasks

Organism made up of many cells

Variety

Depend on 2 major things about cells:

Communication

Cooperation

Cell Specialization

Process in which cells throughout an organism perform different tasks

Specialized Animal Cells Many specializations, for example: Red Blood cells (rbc): Specialized to transport oxygen RBC have protein that binds to oxy in the lungs are carries it all over the body

Many specializations, for example:

Red Blood cells (rbc):

Specialized to transport oxygen

RBC have protein that binds to oxy in the lungs are carries it all over the body

 

Muscle cells: Specialized in movement What oragnelle is going to be big and important in these cells? Cytoskeleton Lots of the protein actin and myosin Specialized Animal Cells

Muscle cells:

Specialized in movement

What oragnelle is going to be big and important in these cells?

Cytoskeleton

Lots of the protein actin and myosin

 

Liver cells: Specialized in detoxification Have lots of what organelle? Smooth ER Specialized Animal Cells

Liver cells:

Specialized in detoxification

Have lots of what organelle?

Smooth ER

 

Pancreas cells: Specialized in making proteins (enzymes) Makes enzyme that are needed by digestive system to break down food What three organelles are pancreatic cells loaded with (if their main function is making proteins)? Ribosomes. Rough ER, Golgi Apparatus Specialized Animal Cells

Pancreas cells:

Specialized in making proteins (enzymes)

Makes enzyme that are needed by digestive system to break down food

What three organelles are pancreatic cells loaded with (if their main function is making proteins)?

Ribosomes. Rough ER, Golgi Apparatus

 

Specialized Plant cells Lots of chemical activity all the time Exchanges carbon dioxide, water vapor, oxygen, and other gases through tiny pores called…? STOMATA Found underside of leaves

Lots of chemical activity all the time

Exchanges carbon dioxide, water vapor, oxygen, and other gases through tiny pores called…?

STOMATA

Found underside of leaves

Guard Cells: Highly specialized cells that regulate process of gas exchange at the stomatas They monitor plants internal conditions and regulate stomata accordingly If plant needs gas exchange, what will happen to the stomata? open

Guard Cells:

Highly specialized cells that regulate process of gas exchange at the stomatas

They monitor plants internal conditions and regulate stomata accordingly

If plant needs gas exchange, what will happen to the stomata?

open

 

Levels of Organization Makes it easier to describe cells in a multicellular organism Cells- basic unit of living things Tissues- group of similar cells that perform a specific function Organs- group of tissues working together to perform a specific function Organ systems- group of organs that work together to perform a specific function ORGANISM

Makes it easier to describe cells in a multicellular organism

Cells- basic unit of living things

Tissues- group of similar cells that perform a specific function

Organs- group of tissues working together to perform a specific function

Organ systems- group of organs that work together to perform a specific function

ORGANISM

 

 

Osmotic Pressure Pressure exerted by osmosis on the HYPERTONIC side of a semi-permeable membrane Can cause serious problems for cell Cell is full of sugar, salts, proteins, molecules Inside of cell is Hypertonic Osmotic pressure should make fresh water go…? In or Out? In Cell will become inflated/swollen Too much  cell will burst like a balloon

Pressure exerted by osmosis on the HYPERTONIC side of a semi-permeable membrane

Can cause serious problems for cell

Cell is full of sugar, salts, proteins, molecules

Inside of cell is Hypertonic

Osmotic pressure should make fresh water go…?

In or Out?

In

Cell will become inflated/swollen

Too much  cell will burst like a balloon

Why don’t all our cells burst? What are our cells (animal) contained in? Fresh water? No…..blood or other fluids, which are ISOTONIC The conc. Of sugars, salts, proteins and molecules in these fluids is the same as the conc. in the cell Bacteria and plant cells They DO come in contact with fresh water…what do they have PROTECTING them? CELL WALL Prevent cells from expanding even when there’s a lot of osmotic pressure But, cell walls are prone to injuries when there is too much osmotic pressure

What are our cells (animal) contained in?

Fresh water?

No…..blood or other fluids, which are ISOTONIC

The conc. Of sugars, salts, proteins and molecules in these fluids is the same as the conc. in the cell

Bacteria and plant cells

They DO come in contact with fresh water…what do they have PROTECTING them?

CELL WALL

Prevent cells from expanding even when there’s a lot of osmotic pressure

But, cell walls are prone to injuries when there is too much osmotic pressure

 

Which is a RBC in isotonic solution? RBC in hypertonic solution? RBC in hypotonic solution?

Which is a RBC in isotonic solution?

RBC in hypertonic solution?

RBC in hypotonic solution?

 

Study for Chapter 7 Test!!!

Add a comment

Related presentations

Related pages

Diversity of cell life flashcards | Quizlet

Vocabulary words for Diversity of cell life. Includes studying games and tools such as flashcards.
Read more

Diversity of Life (Cells & Life): Amazon.de: Robert ...

Diversity of Life (Cells & Life): Amazon.de: Robert Snedden: Fremdsprachige Bücher Amazon.de Prime testen Fremdsprachige Bücher. Los ...
Read more

The Diversity of Life - Columbia University

The Diversity of Life. ... Anything from the lowliest, single-cell bacterium to the most complex vertebrates and towering redwood trees have that ability.
Read more

What are the answers to section 7-4 the diversity of ...

1. unicellular 2. cells throughout an ... What are the answers to section 7-4 the diversity of ... In biology the diversity and unity of life simply ...
Read more

7-4 The Diversity of Cellular Life - Liberty Christian School

7-4 The Diversity of Cellular Life Slide 7 of 30 ... Muscle cell Smooth muscle tissue Stomach Digestive system. 7-4 The Diversity of Cellular Life
Read more

Biodiversity - Wikipedia, the free encyclopedia

Biodiversity, a contraction of "biological diversity," generally refers to the variety and variability of life on Earth. One of the most widely used ...
Read more

Cell Theory, Properties of Cells and their Diversity

CELL THEORY, PROPERTIES OF CELLS AND THEIR DIVERSITY Michelle Gehringer ... 2.3. Cell size 3. The diversity of life 3.1. Origin of the first cell 3.2.
Read more

1 The Diversity of Cells

Cell Size Most cells are too small to be seen without a microscope. It would take 50 human cells to cover the dot on this letter i. A Few Large Cells
Read more

CELL DIVERSITY

CELL DIVERSITY Cells group together to form tissues. These tissues are made of the same cell types or, in some cases, different cell types.
Read more