1. EARTH AND
LIFE SCIENCE 11
INTRODUCTION TO
LIFE SCIENCE
FINALS
T. Mhark Ewie E. Valdez, LPT
2. OBJECTIVES:
• To help instructors manage the
presentation of biological information with
the production of scientifically related
students.
• To help each student to acquire information
according to his or her own learning style.
• To help students relate this information to
their own lives and so as to understand its
importance and relevance.
7. 1. SPECIAL CREATION
LIFE FORMS may have been put on earth by
supernatural or divine forces.
“GOD CREATED LIFE”
8. 2. EXTRATERRESTRIAL
Others called it as PANSPERMIA THOERY.
LIFE may not have originated on Earth at all;
instead, life may have infected Earth from
some other planet.
9. 3. SPONTANEOUS
LIFE may have evolved from inanimate matter,
as associations among molecules became
more and more complex.
10. Based on further studies,
MICROBES are the
earliest life form on
Earth.
13. OBJECTIVES:
• To understand how cell carry functions in
performing life activities.
• To explain how photosynthetic organisms
use light energy to from energy-rich
compound.
• To describe how organisms obtain and
utilize energy.
16. CELL is the fundamental structural and functional unit of LIFE.
It is the building blocks of all organisms.
ROBERT HOOKE, an English scientist was the first to observe
cells and in doing so he named them “CELLS”. He examined a slice
of cork in a primitive microscope and he saw tiny boxes, which he
thought looked like a room and led to him calling them cell.
WHAT IS A CELL?
19. 1. ALL LIVING THINGS ARE MADE OF CELLS.
2. IT IS THE SMALLEST LIVING UNIT STRUCTURE
AND FUNCTION OF ALL ORGANISMS.
3. ALL CELLS ARISE FROM PRE-EXISTING
CELLS.
The CELL THEORY states that:
21. The following are
characteristics of a
PROKARYOTIC CELL:
1. Single Celled
2. No Nucleus
3. No Membrane-
Bound Organelles
4. No Mitotic Division
Examples:
BACTERIA and VIRUS
22. The following are
characteristics of a
PROKARYOTIC CELL:
1. Larger than
Prokaryotes
2. Contain Nucleus
3. Multi-Cellular or
Single-Celled
4. More then one
Chromosomes
5. Has DNA
Examples:
HUMAN, ANIMAL, and
PLANT CELL
27. You will be given a chance to see your
own cell using a microscope. After that,
write a REFLECTION LETTER about what
you have seen or notice on your own cell.
DISCOVER YOUR CELLS
28. ALTERNATIVE ACTIVITY
In a clean 1/8 illustration board, draw
either a PROKARYOTIC or an
EUKARYOTIC CELL and share your
learnings about that cell you’ve drawn.
30. The chloroplasts in plants and other photosynthetic organisms
capture light energy from the sun and convert it to chemical energy
that is stored in sugar and other organic molecules.
AUTOTROPHS = H2O + MINERALS + CO2
PHOTO-AUTOTROPHS = SUNLIGHT + H2O + MINERALS + CO2
HETEROTROPHS = HERBIVORES, CARNIVORES, & OMNIVORES
WHAT IS PHOTOSYNTHESIS?
35. OBJECTIVES:
• To understand how plants and animals
reproduce.
• To explain the importance of reproduction.
• To describe how organisms reproduce their
offspring.
37. It is a process of generating offspring. There are two (2) types
of reproduction: SEXUAL and ASEXUAL. Some organisms
reproduce by one only type of reproduction and others can
reproduce by both.
SEXUAL = MALE + FEMALE
ASEXUAL = REPRODUCTION FROM THEIR OWN
WHAT IS REPRODUCTION?
41. ASEXUAL
REPRODUCTION
In this process, cells from only one parent are
used. Only genetically-identical organisms are
produced by this type of reproduction.
49. GMOs or Genetically Modified Organisms are organisms whose
genetic material (DNA & GENES) has been altered using genetic
engineering.
It is a process of modification of the organism’s PHENOTYPE
by altering its genetic make up.
WHAT IS GMO?
55. TIME LAPSE
Record a piece of bread using a video
for 30 days (at least 3 minutes per day)
and write the changes that happened
within 30 days of the experiment.
