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Unit 2: Similarities Among Living Things

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Unit 2: Similarities Among Living Things Understanding life, life functions, and cells. Unit 2: Similarities Among Living Things Understanding life, life functions ... – PowerPoint PPT presentation

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Title: Unit 2: Similarities Among Living Things


1
Unit 2 Similarities Among Living Things
  • Understanding life, life functions, and cells.

2
Chapter 3 Characteristics of Living Things
3
A. Living vs. Non-living List Living and
Non-living things
4
B. Characteristics of Life 1. Living things
are __________________ and contain many
complex chemical substances. 2. Living things
are made up of __________________, which are
the smallest units of life. 3. Living things
______________. 4. Living things have a
______________________________. 5. Living
things have a _________________. 6. Living
things _____________. 7. Living things
___________________________. 8. Living things
are ____________________. 9. Living things
______________________, over long periods
of time.
8 9 are true for the species not the individual
5
10. Are viruses alive?
- Viruses are like _____ they have an
outer candy coating and a rich chocolate
center!?
- On a virus the outside is made of _______
and the inside is _____ or ____ - On their
own viruses do _______ - Viruses are
_____________ not made of cells - Viruses
_____ their way into cells and _____________
to make more viruses
6
C. Life Processes

- Also called life activities - These are the
activities that all living things do to stay alive
1. ____________ activity by which the organism
______ and _____________ materials from the
environment.
a. _________ the substances that the organism
needs for ________, ________, ________,
____________, and the life processes. ___________
__ _____________ _____________ _______, ________,
and _______
7
b. 3 Processes involved in Nutrition i.
______________ taking in of food from the
environment. ii. ___________ breakdown of
complex food materials into
simpler forms that an organism can
utilize. Digestion _____________
iii. ______________ elimination of undigested
materials
8
c. 2 Types of Nutrition
i. ____________________ Autotrophic nutrition
is the process by which organisms make their
own food from ___________ compounds ex Plants
___________ use photosynthesis for
autotrophic nutrition ____________
_________ ? Sugar Oxygen convert simple
inorganic compounds to complex organic compounds

ii. _____________________ Heterotrophic
nutrition is the process by which organisms
____ other organisms or the by-products of
organisms to obtain their nutrients.
Heterotrophs use ____________________ compounds
ex Humans, animals, fungus, and many bacteria
are heterotrophs

9
2. Transport
Transport is the life process by which substances
are _____________ and _____________ within the
organism.
Materials can either enter the cells
_____________ or as in larger organisms
materials are moved throughout the body by a
_________________.
10
3. Cellular Respiration
__________________________ is the life process of
releasing ____________ energy. Food materials are
broken down into energy, water, and carbon
dioxide. Cellular Respiration is _________________
i. _________________________ requires
________ from the environment carried by
______________ inside the cell
ii. _______________________ without the use
of oxygen from the environment does not use
the mitochondria
iii. ________ ATP is the energy molecule made
from cellular respiration All cells use ATP as
their _____________ form of energy
11
4. Excretion
Excretion is the life process of
________________________ from the body
Many different types of wastes urine, urea,
______, ______, heat
12
5. Regulation
Regulation is the life process used to
______________ and ______________ the organism
Regulation is carried out by the nervous system
and/or _______________
13
6. Synthesis and Assimilation
i. ______________ combination of simple
substances into more complex substances.
________________
ii. ____________ incorporation of material into
the organism's body

.
14
7. Growth
Growth is an _____________ in size or
__________________ Growth results from
___________ and _______________
___________________________ when cells
transform to have specific jobs ex in human
growth, life starts as one cell but forms many
different body parts
In most animals growth is a finite process. It
has an end, but in some plants, growth has no
definite end
15
8. Locomotion
____________ is the ability to _________ from
place to place ________ has to ability to move
from place to place ___________ stationary,
nonmotile Locomotion is an advantage to be able
to find _______ _______ _______
______________ ______________
16
8. Reproduction
Reproduction is the life process by which
organisms ________ _______________________________
____________
i. ________________ reproduction a single
individual reproduces offspring genetically
____________ to the parent ex __________,
fission, budding, vegetative propagation
ii. _____________ reproduction there are two
parents and the offspring are a _____________
of the parents genes
17
9. Metabolism
_____________ is the combination ____ the life
processes occurring within the cells of an
organism Metabolism is _____ the chemical
reactions in an organism
Metabolism involves the ________ of substances,
the ____ ______ of substances, _____ of energy,
and ___ of energy
10. Homeostasis
________________ is the condition of a constant
internal environment Homeostasis is keeping the
organism in ___________ even though the
environment is changing Uses feedback mechanisms
to help maintain a ______________________

18
EX Regulation of ________ through an elephant's
ears to help keep it _____. EX _________ ? a
reaction to keep your body warm when you are
cold. EX Increased __________ during
exercise EX Immune system responding to
_______________ in your body
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