BIOA01 t LEC 02 CHAPTER 4
CELL STRUCTURE
x All life on earth as we know it and all the evidence from the life that has been here in the past,
comes from a common ancestor t we share a lot of characteristics in common t elephant,
human, or bacteria
HOW IS ALL LIKE ON EARTH RELATED?
x All life on earth consists of organized cells
o Takes energy just because of the fact that they are organized
x All organisms contain heritable genetic information for reproduction
o Important for evolution
o If the organism is able to survive, they are able to reproduce and pass down its genetic
information
o Ultimately the mandate from a biological standpoint is to live long enough to reproduce
x All organisms show growth and development
o Ex. Human egg Æ Human
x All organisms respond environmental stimuli
o Ex. Some plants excrete chemicals to keep away pests, organisms and illuminate
practises
o Ex. Sunflowers moving towards the sun
x All organisms maintain homeostasis
o These organisms that are constructed of cells are capable of controlling and regulating
their internal environment to optimize the functioning of the cell, enzymes, chemicals,
etc
o Ex. Extremophiles t lives in extreme temperatures, pH levels, etc. t possibility of life in
outer space
x All organisms use matter and energy from its external environment and converts it into material
to support the life of that organism t metabolism: using food, light, or chemical energy to help
an organism do what they need to do
o Part of the growth t taking external nutrients and make it part of you
x Organisms are capable of adapting to their environmental changes t evolution through natural
selection
o This can ensure survival and reproduction
CELL STRUCTURE
x Cells
Characterized by a membrane made up of phospholipids t cell
membrane/plasma membrane/plasmalema
Basic unit of life
www.notesolution.com
Unlock document

This preview shows page 1 of the document.
Unlock all 3 pages and 3 million more documents.

Already have an account? Log in

Document Summary

N all life on earth consists of organized cells: takes energy just because of the fact that they are organized. N all organisms contain heritable genetic information for reproduction. If the organism is able to survive, they are able to reproduce and pass down its genetic information: ultimately the mandate from a biological standpoint is to live long enough to reproduce. N all organisms show growth and development: ex. N all organisms respond environmental stimuli: ex. Some plants excrete chemicals to keep away pests, organisms and illuminate practises: ex. N all organisms maintain homeostasis: these organisms that are constructed of cells are capable of controlling and regulating their internal environment to optimize the functioning of the cell, enzymes, chemicals, etc, ex. Extremophiles j lives in extreme temperatures, ph levels, etc. N organisms are capable of adapting to their environmental changes j evolution through natural selection: this can ensure survival and reproduction.

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
Booster Classes
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
Booster Classes