Title: Living(BIOTIC) - organisms must have all 7 characteristics of life(living and dead).
1Living(BIOTIC) - organisms must have all 7
characteristics of life(living and dead).
Dead organism once had the 7 characteristics
of life but now doesnt. It is Considered to be
LIVING!!!!
Nonliving(ABIOTIC) - things do not have all 7
characteristics.
2How would you know if this is living?
3Yeast
- The tiny, rounded, colorless one-celled fungus
called yeast floats through the air everywhere,
but it is responsible for making all our cakes
and breads rise to a nice, fluffy texture. This
happens because yeast creates chemical reactions
on the starch and sugar in the cake or bread
batter. Heres how it works. - Yeast cells reproduce very rapidly no matter
where they are. This reproduction goes on through
a process called budding. In budding, each tiny
cell swells, and soon the swollen part separates
from the main cell. The new tiny cell then goes
on to grow to full size on its own and the
budding process continues to repeat itself.
4- During this growth process, the yeast cells
produce substances called enzymes. So when the
yeast is added to cake or bread dough, one enzyme
goes to work on the flour, changing the starch in
it into sugar. - Another enzyme then takes over and changes the
sugar into alcohol and a gas called carbon
dioxide. This gas spreads through the dough in
the form of bubbles. - As the dough bakes into bread and cake, the heat
causes the alcohol to evaporate and the bubbles
to break. This leaves the tiny air pockets in the
final bread or cake, making it light and fluffy.
5Yeast and Fungus kingdom
- Not Plants produce enzymes that digest their
food outside their bodies. - Some are parasites/
- Cell walls contain chitin
- Fungi are heterotrophic eukaryotic with cells
walls that contains chitin.
6Fungi Structure
- 2 basic structures
- Yeast singled celled
- Mushroom multi - celled that grow much larger
with hyphae
7Reproduction of Fungus
- Fungus can reproduce sexual and asexual
- Spores(asexual) Spores are just reproductive
cells. - Sexual Sperm and egg combine to form a zygote.
8Roles in Ecosystem
- Decomposer break down plant material.
- Parasite Infect plants and animals(ringworm).
- Animal disease
- Lichens Mutualistic relationship between a
photsynthetic organism and a fungus. Plant makes
the energy and fungus breaks down the nutrients
in the environment and they share.
9HYDRA!!
10Daphnia Hydra Food
11ABIOTIC FACTORS
- Water
- Rocks
- Air
- Disease
- Fire
- Natural Disasters
12BIOTIC FACTORS
- TREES
- GRASS
- PREDATORS
- HUMANS
13Characteristics of Life!!!!!!
Cells, reproduction, adaptations, DNA, responds
to a stimulus, grow and development, and energy
Bacteria ReproductionVideo
14ALL LIVING THINGS ARE MADE OF CELLS or ORGANIZED
CELLS
UNICELLULAR(single)
MULITCELLULAR
Unicellular organisms makeup most of all
organisms on Earths.
Many cells
They have everything they need to be
self-sufficient.
15Eukaryotic vs. Prokaryotic
- Eukaryotic Nucleus all other kingdoms!!!!
- Prokaryotic No nucleus all bacteria
16Prokaryotic Cell
17Eukaryotic Cell
18Unicellular one celled
19Multi-cellular
20In multi-cellular organisms, the cells specialize
to perform specific functions(bone cells, skin
cells, muscle cells, root cells, leaf cells).
Smooth muscle
Nerve cell
Leaf cell
Red Blood Cell
Yeast cell
21ALL LIVING THINGS MAKE AND USE ENERGY
The SUN is the main source of energy!!!
The Sun makes light that is used by
plants!!!!!! What is the name of this process?
22Plants(producers) trap the energy of the Sun and
make glucose(sugar) in the process called
photosynthesis).
Consumers(animals) get their energy from the
plants!!!!
23Autotrophs(producers) use the Suns energy to
make glucose!! Produce their own food!
24Photosynthesis process where plants convert
Suns energy and carbon dioxide into glucose
25Heterotrophs(consumers) must consumer food for
energy!
26ALL LIVING THINGS RESPOND TO A STIMULI
Living things respond to immediate and long-term
changes in their environment(shiver when cold,
change fur color, bend toward light).
27Stimulus something in organisms environment
that causes a response
28Homeostasis
- Constant internal and external physical and
chemical conditions that organisms must maintain.
Everything is happy!! Goldilocks Just Right!!!
29ALL LIVING THINGS REPRODUCE
- Reproduction must occur for a species to survive.
Reproduction can be either sexual or asexual.
30Asexual Reproduction NO joining of sperm and
egg!!!!
31ASEXUAL REPRODUCTION
5 Types of Reproduction
1. Budding Hydra and Sponge
2. Fragmentation - Starfish
- Binary Fission unicellular organisms
- Vegatative Propagation- runners on
- strawberry plants.
- 5. Spores mushrooms(reproductive cells)
32ASEXUAL REPRODUCTION
33Sexual reproduction combination of sperm and egg
34ALL LIVING THINGS GROW AND DEVELOP
To grow means to get bigger and to get bigger
more cells must be added.
To increase numbers of cells, cell division must
occur.
Develop means to change into an adult(mature).
35Growth Organism get larger by adding cells and
cellular material
36Development - mature
37ALL LIVING THINGS CHANGE TO FIT THEIR
ENVIRONMENT(ADAPT)
Organisms must adapt to their changing
environment or become extinct.
Adaptations occur over a very long period of
time(millions of years).
38Adaptation Inherited trait that is passed from
parent to offspring that helps an organism
survive in its environment
39Name some the adaptations of these organisms.
40ALL LIVING THINGS HAVE DNA.
DNA provides instructions for making molecules
called proteins. Proteins build cells.
DNA carries the genetic material from parent to
offspring(heredity).
41DNA molecule that stores genetic information
42LETS PRACTICE!!!
Which characteristics of life is being described?
Reproduction
Cells
Adaptation
Grow and develop
Responses
Energy