good morning! 1.complete today’s warm-up – worksheet 4. 2.if you finish, study your notes on...
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Good Morning!
1. Complete today’s warm-up – worksheet 4.
2. If you finish, study your notes on Scientific Method.
.
Housekeeping
• Signed Contracts?
• $5.00 for Biology Handbook?
• Homework? (sponge Bob)– We will discuss answers
• Next Friday: Unit 1 Test
Quiz 1: Scientific Method
• Clear EVERYTHING off your table except a pen/pencil.
• Leave your quiz face down until all the quizzes have been passed out.
• Eyes on your own paper. No notes. No talking.
• Turn your quiz back over, face down when you finish.
• Questions?
BINDERS
• Biology Handbook – place in the back of the binder.
• Dividers in front…
Dividers:
1. Divider/Unit 1: Scientific Method (S.M) and Characteristics of Life
2. Biochemistry
3. Cells
4. DNA/Cell Division/Reproduction
5. Protein Synthesis and Mutations
6. Genetics
7. Biotechnology and Disease
8. Evolution
9. Classification and Immunity
10. Organisms, Adaptations, and Behavior
11. Ecology and Human Impact
12. EOC Review
How do you know you are alive?
• What traits (characteristics) do you think ALL living things share?
• How can you tell if something is living?
Characteristics of Living Things
• Biology is the study of _______ and __________ things
• All living thing, called ______________, share some common characteristics and life functions. All organisms must carry out all of the same life processes, or activities, in order to be considered “alive.”
• There are 6 characteristics of life:
lifeliving
organisms
Life Characteristic #1• Genetic Code: All living things are made
from a universal
Genetic code (DNA, RNA)
This is also known as
heredity.
Life Characteristic #2
• All living things are made up of one or more cells.
Life Characteristic #3
• Living things can obtain and use energy.
• This is also called METABOLISM
Life Characteristic #4
• change over time a population. (They evolve)
Life Characteristic #5
• Living things are able to maintain homeostasis. (internal balance)
• Define:
The ability to maintain a stable (balanced) internal environment
Life Characteristic #6
• Living things are able to adapt or respond (adjust) to their environment.
Let’s investigate more!
1. Read the directions.
2. Define each term.
3. Write a hypothesis.
4. Visit each station with your partner and complete the chart.
Let’s do one together…
#1
Characteristics Condition Reason for Decision
Made of Cells
Respond to Stimuli
Reproduction
Metabolism
Heredity
Homeostasis
Evolve
More…
• Living things also have to be able to accomplish certain life processes or activities. A living thing must be able to do ALL 8 of these “STERNGRR” processes.
Atoms / Elements
Molecules
Cells
Tissues
Organs
Systems
Organism
STERNGRR (life processes) starts here!
Life Processes
STERNGRR
Synthesis
to make or build
to combine
SYNTHESIS examles
• photosynthesis: makes compounds using __________ energy: (PLANTS)
• chemosynthesis: makes compounds using _________________ energy: (BACTERIA)
• Protein synthesis: cells have structures called ribosomes that make proteins (ALL cells)
sunlight
chemical
• Plants use light energy of the sun to SYNTHESIZE
(make) food
Life Processes
STERNGRR
TRANSPORT
• DOES NOT MEAN movement from place to place
• Transport is the movement INSIDE the organism i.e. vascular tissue in plants
Transport Example
• Plants have vascular tissue – (xylem to transport water in the stem) – (phloem to move sugar and water through the
stem)
• The blood is the body’s TRANSPORT system for moving
oxygen, nutrients and wastes from one place to another.
Circulatory system. In animals, can be open or closed
Life Processes
STERNGRR
EXCRETION examples
• Transpiration in plants: how plants get rid of __________
• Diffusion of waste gasses (like _______) out of cells through the cell membrane
water
CO2
• EXCRETION helps an organism to maintain
homeostasis by getting rid of waste materials
Life Processes
STERNGRR
Reproduction =
to make more individuals
When a species makes more of its own kind
REPRODUCTION
2 kinds: • SEXUAL: (2 parent cells)
– Spores– Pollination
• ASEXUAL: (one parent
cell)– Mitosis– Binary fission
Life Processes
STERNGRR
NUTRITION
• heterotroph: eats different foods for energy (animals, bacteria, fungi)
OR
• autotroph: makes own food internally (plants, algae)
Life Processes
STERNGRR
Growth (and Development)
to get bigger and change
When an organism increases in size or number
GROWTH examples
• _____________________ (complete vs. incomplete)
• Plants and animals use the process of MITOSIS to make more cells that allows for growth
Metamorphosis
GROWTH is getter larger
DEVELOPMENT is changing stages during one’s life
cycle
Life Processes
STERNGRR
Respiration =
Turning food into usable energy
RESPIRATION
• Respiration: turning food into usable energy with the exchange of ______
IS NOT ALWAYS BREATHING!
gases
RESPIRATION is the process used by a living organism to break down food and produce energy
RESPIRATION examples
1. _______________when cells use oxygen to break down glucose for energy (ATP)
2. _________________: when cells produce ATP (energy) without oxygen present
AEROBIC
ANAEROBIC
Life Processes
STERNGRR
REGULATION examples
Regulation: homeostasis1.Sweating to keep cool and shivering to
stay warm (regulates body temperature)
2.Insulin hormone regulates blood
3.Stomata (openings/pores) on plant leaves regulate _______ exchange and _____________ loss
sugar
gaswater
• REGULATION includes responding to stimuli and making adjustments to help maintain homeostasis
CASE STUDY!
1. Work with your partner.
2. Create a STERNGRR +6 check list
3. Read the “Safari Scenario” about the discovery of a strange object and determine whether it is living or non-living.
4. As you read the scenario, see which terms can be checked off. Give examples of the terms that are met.
5. If all terms can be checked off, the item is living. If not, the item is nonliving.
STERNGRR +6
Characteristics of Life
1.Made of cells -
2.Respond to environment -
3.Evolve -
4.Genetic Code -
5.Obtain & Use Energy -
6.Homeostasis -
STERNGRR (processes of living things)
S -
T -
E -
R -
N -
G -
R -
R -
Group Discussions
• All the “Rhinos” Come together and share your findings and conclusions
• All the “Bull Dozers” come together and share your findings and conclusion
2.1.2 Characteristics of Life and Life Processes
• Use your notes!
• Work with a partner or independently
• Use highlighters if that helps
• We will do the 2 together!
EXAMPLE CHARACTERISTIC DESCRIBED
KEY WORDS
a. autotrophic/ heterotrophic organisms
e. The cell membrane is semi-permeable and allows certain particles to pass through, but not others