We will review class expectations and provide an introduction to the cell, the basic unit of life and our human body
TESTS 50%
QUIZZES 10% - 10 MARKS daily
ASSIGNMENTS 30%
JOURNALS/PARTICIPATION 10%
POLITE, PRESENT, ENGAGED IN ACTIVITY 3 MARKS
QUIZ 1
1. What are the criteria for living things?
2. outline the biological hierarchy in multicellular organisms
3. What do the organ systems provide?
4. No wrong answer here.... Are you an organism or a
colony of cells?
What are the criteria for living things?
1. MOTILITY - the ability to move
2. IRRITABILITY - it responds to stimulus
3. REPRODUCTION - it can reproduce and make offspring
4. ORGANIZATION - it has organelles or organs
5. a. TAKES IN NUTRIENTS and MAKES WASTE
b. HAS METABOLISM -total of all biochemical reactions
occurring in a living thing. If metabolism stops...then that
is death.
6. HOMEOSTASIS - maintaining the status quo for temp,
pH, levels of hormones, levels of enzymes.
7. it grows
8. it adapts to change
Organ systems provide everything for the cell
1. energy for the cell - this is in the form of ATP made
by mitochondria.The mitochondria needs GLUCOSE and OXYGEN.
GLUCOSE IS FROM DIGESTIVE SYSTEM.
OXYGEN IS FROM CIRCULATORY SYSTEM AND
RESPIRATORY SYSTEM.
2. eating and drinking - cell receives building blocks such as
AMINO ACIDS, LIPIDS, NUCLEIC ACIDS from the
DIGESTIVE SYSTEM AND CIRCULATORY SYSTEM
3. waste is taken away by the CIRCULATORY SYSTEM and disposed
of in the EXCRETORY SYSTEM
4. communication for the cell is provided by ENDOCRINE SYSTEM
OF HORMONES. Also by the NERVOUS SYSTEM.
5. cells are defended by the IMMUNE SYSTEM.
6. Reproduction of the cell : the cell can simply do MITOSIS to clone
itself, but if the ENTIRE HUMAN BODY wants to make offspring,
SEXUAL REPRODUCTION SYSTEM.
ANY ANIMAL CELL inside a mammal...
Eating building material such as amino acids, lipids nucleic acids
Energy: glucose and oxygen goes to mitochondria and carbon
dioxide leaves mitochondria
Waste: ammonia
Drinking water
cell product: made by the cell as specified by the DNA. For example,
a pancreatic cell makes INSULIN
