Characteristics of Life. 2 Pptx
Transcript of Characteristics of Life. 2 Pptx
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What Does it Mean to Be Alive?
The Characteristics of Life
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Let’s Practice
Tell if the object is living or nonliving.
Nonliving LivingLiving
Living LivingLiving
Nonliving
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Characteristics of Life
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Life!!!
All living things share some basic properties.
Cellular rgani!ation
"epro#uction
$etabolism %btain an# &se 'nerg()*omeostasis
*ere#it(
"esponsiveness
+ro,th an# -evelopment
A#apt Through 'volution
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All Living Things are Made Up of Cells
&nicellular rganisms'ntire organism is ma#e up of one single cell
acteria an# protists
/mallest unit capable of all life functions
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$ulticellular rganisms
The organism is ma#e up of man(
cells
Cells have speciali!e# functions
,ithin the organism
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n multi0cellular organis!s" the cells
speciali#e to perfor! specific f$nctions
%&one cells" s'in cells" !$scle cells" rootcells"
leaf cells()
*!ooth !$scle Nerve cell Leaf cell +ed Blood Cell
,east cell
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All Living Things +eprod$ce
"epro#uction is the process of pro#ucing ne,organisms of the same t(pe
Ase1ual "epro#uction
A single parent organism repro#ucing b( itself
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A/'2&AL "'P"-&CT
5. u##ing *(#ra an# /ponge
. 8ragmentation 0 /tarfish
3. inar( 8ission unicellular organisms
3 T(pes of "epro#uction
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/e1ual "epro#uction
T,o #ifferent parent organisms contribute genetic
information
nvolves the combination of male an# female se1
cells
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All Living Things -&tain and Use .nerg/
Living organisms nee# energ( togro,9 #evelop9 repair #amage9 an#
repro#uce
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Anabolism
The process of buil#ing up comple1 substancesfrom simpler substances
uil#ing up cells an# cellular components
Photos(nthesis
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Catabolism
The process of brea:ing #o,n comple1
substances into simpler substances to release
energ(
-igestion Cellular "espiration
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$etabolism
The total of all chemical reactions in
an organism
Anabolism ; Catabolism < $etabolism
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A stable state of con#itions in the bo#( thatare necessar( for life
o#( temperature
loo# volume
p* balance
=ater balance
All -rganis!s Maintain 0o!eostasis
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All -rganis!s ass Along 0ereditar/ Traits
+enes carr( here#itar( information
+enes are compose# of -A
*ere#it( is the reason chil#ren resemble their parents
$utations change
-A co#e an# can be
passe# from
generation to
generation
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All Living Things +espond to Their .nviron!ent
rganisms react to stimuli>
Light
Temperature
#or
/oun#
+ravit(
*eat
=ater
Pressure
An e1ample is a plant’s
leaves an# stems gro,ing
to,ar# light
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All Living Things ro3
+ro,th means to get bigger in si!e
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All Living Things Develop
-evelopment involves a change in the
ph(sical form or ph(siological ma:e0up of
an organism
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All Living Things Adapt to Their
.nviron!ent Thro$gh .vol$tion
A#aptation
A process that enables
organisms to become better
suite# to their environment
/pecies obtain a#aptationsthrough evolution over great
perio#s of time
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An '1ample of A#aptation
-esert plants have succulent ,a1( leaves an#
stems to store ,ater an# re#uce ,ater loss
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L.T4* +ACTC.
Which characteristics of life is &eing descri&ed?
+eprod$ctionCells Adaptation
+esponses .nerg/
ro3 and develop