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Unit 1: Introduction to the Study of Living Things

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Unit 1: Introduction to the Study of Living Things Biology: What is it all about? – PowerPoint PPT presentation

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Title: Unit 1: Introduction to the Study of Living Things


1
Unit 1 Introduction to the Study of Living Things
Biology What is it all about?
2
A. Biology and Science
  • 1. What is biology?
  • a. ________ - _______________.
  • The science of life and of living
  • organisms, including their _________,
  • ________, _______, _______, _________,
  • and distribution.
  • b. _________ _________________________
  • c. _________

3
B. Science 1. Scientific Method
_____________________ - Basic Procedure to
follow for _____________________
_________________________________________ -
Scientific Inquiry begins with making
________________ 2. Steps of the Scientific
Method a. State the _____________ b.
Propose a _________________ Hypothesis
a ___________ about the possible answer
based on previous knowledge c.
____________ ____________ factors that
are manipulated during an experiment
_________________ an experiment in which
________ ______________________ d.
_____________________ e. ___________________
__ f. ______________________
4
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5
3. Scientific Facts a. ___________
information based on experimentation
observations and tests demonstrate
_______________ to the scientist b.
_________ explains a ______________, ideas
about a specific situation or similar
situation ex ___________________________
Theories are changed and modified based on new
scientific evidence c. ______________
once a theory has been tested many times
over many years and is ______________________
then it becomes a scientific law. ex
Law of Gravity
6
C. Living vs. Non-living List Living and
Non-living things
7
D. Characteristics of Life 1. Living things
are _________________________________
_______________________________________________.
2. Living things are ___________________________
_, ____ ______________________________________
________. 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 ___________________________________.

8 9 are true for the species not the individual
8
10. ____________________?
- Viruses are like MMs they have an
outer candy coating and a rich chocolate center
- On a virus the outside is made of _______
and the inside is _____ or _______ -
__________________________ - Viruses are
____________ not ____________ - Viruses
trick their way into cells and
_________________________ _____________
9
D. Life Processes

- Also called life activities - These are the
activities that all living things do to stay alive
1. ____________ activity by which the organism
___________ _________________________________
________________.
a. ______ the ______________ __________________
for energy, growth, repair, maintenance, and the
life processes. ___________ _______________ _____
______________ Water, Vitamins, and Minerals
10
b. 3 Processes involved in Nutrition i.
______________ _______ of food from the
environment. ii. ___________ _________ of
complex food materials into
simpler forms that an organism can
utilize. Digestion
__________________ iii. ____________
_____________ of undigested materials
11
c. 2 Types of Nutrition
i. ________________________ Autotrophic
nutrition is the process by which organisms
______________________________________________
ex ___________ Autotrophs use
photosynthesis for autotrophic nutrition
Carbon Dioxide Water ? Sugar Oxygen
__________________________________________________
____
ii. _________________________________
Heterotrophic nutrition is the process by which
organisms ____________________________________
___________ __________________________________
_____________. Heterotrophs use
_______________________________ ex Humans,
animals, fungus, and many bacteria are
heterotrophs

12
2. _________________
Transport is the life process by which
___________________ ______________________________
__________________.
Materials can either enter the cells directly or
as in larger organisms materials are moved
throughout the body by a circulatory system.
13
3. ____________________________________
Cellular Respiration is the life process of
_________________ ________________________________
________ Food materials are broken down into
energy, water, and carbon dioxide. Cellular
Respiration is _________________
i. _________________________ _______________
from the environment carried by mitochondria
inside the cell
ii. ____________________ _____________________
______ from the environment does not use the
mitochondria
iii. ____________ ATP is the _____________
made from cellular respiration All cells use
ATP as their _________________________
14
4. _____________________________
i. Synthesis ____________________________ into
more _____________________________.
________________________
ii. _____________ ________ of material into the
organism's body

.
15
5. _____________________
Growth is an ____________________ Growth results
from synthesis and assimilation
_________________________ 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
16
6. ______________
Excretion is the life process of
_______________________ from the body
Many different types of wastes
_________________________________________
7. _____________________
Regulation is the life process used
____________________ the organism Regulation is
carried out by the _____________ and/or
__________________
17
8. ___________________________
Reproduction is the life process by which
organisms _______ ________________________________
____
i. ______________________________ a
_____________________________________________
______________________________________________
ex Clones, fission, budding vegetative
propagation
ii. ________________________________ there
are ________________________________________
____________________
18
9. ___________________________
Metabolism is the ________________________________
__ occurring within the cells of an
organism Metabolism is ___________________________
__________
Metabolism involves ______________________________
_ _______________________________________________
10. __________________________
Homeostasis is the _______________________________
_ _____________________________ Homeostasis is
keeping the organism in ___________ even though
the environment is changing Uses ______________
mechanisms to help maintain a
____________________________

19
EX Regulation of blood flow through an
elephant's ears to help keep it cool. EX Shiver
? a reaction to keep your body warm when you are
cold. EX Increased heart rate during
exercise EX Immune system responding to foreign
substances in your body
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