Living With Bacteria
A) Prevention of Monerans
- There are many different methods for killing or impeding the growth of
iv) Using Preservatives:
vi) Bacterial Survival
Acids, Bases and Buffers
Examples of solutions at this pH
compared to distilled water
10,000,000 ; Battery acid, Strong Hgdroflouric Acid
1,000,000 Hydrochloric acid secreted
tag stomach lining
Life as we know it, is based on the chemistry of organic molecules. To be
organic a molecule must have a CARBON and hydrogen in it.
- For example; Vinegar (CH3CH20H) is organic, whereas water (H20) and (C02)
Organisms have the ability to adapt and change according to their
environment; if they did not have this design they would not tolerate changes
in their environment and they would become extinct.
The mechanisms of evolution act as the driv
Carbo-Loading: Endurance athletes that must occasionally sustain long periods of exercise,
will prepare for the event in the following way:
Step 1. About a week before the event, adjust your carbohydrate intake, if needed, so that
it's about 50 to 55 perc
- The study of cells had its birth with the invention of the microscope. Advances in
Cytology (study of cell) took place in the 1900s with the invention of better scanning
- in the late 1830s two German biologists, Schleiden (a bo
Al Structural Levels of Organization
- Least Complex -) Most Complex
- Cell : The smallest "living" unit of structure in our body. Ex. A fat cell
Tissue : Teams of cells with a common function
Ex. Striated muscle tissue
Organ : Teams of
Structure of water:
In a covalent bond atoms share electrons to become stable. In water, each hydrogen
shares a pair of electrons with oxygen. The oxygen atom is much larger and tends
to attract the shared electrons more. Therefore, oxygen has a p
1. What is the name given to the
most commonly used microscope? _
Label the diagram below, use figure 2-12 on p.34 and the word bank below.
Nutrient Groups Macronutrients
A) Background Terms:
- Nutrition: Food we eat.
- Proper nutrition requires a balance of food types:
1.Carbohydrates, 2. Fats and 3. Proteins, (Macronutrients) and a balance of essential
(Micronutrients) 4. Vitamins and 5. Mi
Science 10 Genetic Disorders in Fetuses
Certain diseases are caused by mutated genes
Scientists have identified genes when mutated that can cause
- Cystic fibrosis (build-up of mucus in lungs, difficult breathing, childhood
Science Binocular Project
How do binoculars work?
Porro prisms binocularsthe person who uses it will look through the eyepiece; reach
one piece of the prisms. Then reflect at 45 to the other piece of the prisms and go
straight into the objective. Although
Purpose: To observe the path of light and an inverted image
Paper with pinhole
Caution: Be careful while using a lighter and candle
Diagram: Please see back of this lab report
Question: Explain why you see what
Celiac Sprue Cause and Description
Celiac Sprue, also known as celiac disease, is a condition in the small intestine
caused by an immunological reaction to gluten (proteins found in wheat) which in turn,
causes destruction in the inner lining of the small
How Periscopes Work
When we look through a periscope, light passes into our eyes by entering through
the viewing hole of the periscope (the side we look out of in a periscope), reflecting off
one mirror to the other mirror, and from the
Anything that is, or has ever been, alive. Examples of biotic factors in an environment include
organisms, organic molecules, and cells. Biotic is the opposite of abiotic.
An organism that only eats animal tissue. Most preda
Behavioural characteristics of light: Reflection and Refraction
The two most observable behavioural characteristics of light are reflection and refraction. This
hub attempts to investigate reflection and refraction of light, and its application in everyda
The Integumentary System
The Integumentary system makes up 12- 15% of the weight of the body and is
also the largest organ (1-2 meters) consisting of skin, hair, nails, sweat glands, and their
products. Its primary job is to protect and tell the animal ab
Refraction of Light
Purpose: To observe light refracting through different materials
Caution: Be careful not to spill any water
Diagrams: Please see back of this
Artificial/Alternate Ways of Human Reproduction
Complications can arise at all stages of the human reproductive cycle
Reproductive technologies are changing the ways babies are born and
shaping laws that determine parenthood and
C1. Bodies of rock may slip either vertically or horizontally on a fault (see
a) Which of these types of faults do you think is most likely to produce a
tsunami? Explain your answer.
b) The San Andreas Fault is a horizontal slip f
1. a) A technique for investigating acquiring new knowledge, or correcting and integrating previous
b) It is important, because scientific methods are known by scientists around the globe and all of
the can support or refuted the theory that wa
Digestion Study Guide
1. a) Digestion is the physical and chemical processes that reduce food to
small soluble molecules that can be absorbed.
b) Digestion is the reducing of the food sizes in order to increase surface
area; absorption is the process of t
15.1 Chapter 15 Assignment # 1
Chapter 15 Exploring the Universe
Section 15.1 Changing Ideas about the Universe
1. The name of the galaxy on page 318 is called Andromeda Galaxy. It has
about 100 billions stars in it.
2. The 2 questions that people have be
Notes for Chapter 3 (Science)
v Matter is made up of small particles called atoms.
v There are about 109 elements.
v Properties of metal:
Ductile. (can be pull or stretch into wires)
Malleable. (cam be beaten into sheet)
What are Pulsars?
A rapidly spinning object
in outer space sending
out bursts of radio waves
at regular intervals
Comes from high-mass
stars that have selfdestructed
Neutron star in the center
Founding of Pulsars
Thousands of Pulsars
Notes for Chapter 2 (Science)
Matter is everything that had mass and volume.
Matter can be easily classified by their properties and characteristics.
Properties are ways of describing thing so that we can identify them.
Mixture and compound contains t
Proteins are large organic compounds made of amino acids arranged in a
linear chain and joined together by peptide bonds between the carboxyl and
amino groups of adjacent amino acid residues. The sequence of amino acids
in a protein is defined by
Notes for Chapter 4 (Science)
A chemical energy the energy that is stored in chemical compounds.
The energy of carbohydrates and proteins are gradually released by taking part in
reaction in our body.
An exothermic reaction is a chemical react
Negative feedback in males
Hypothalamus controls testes by secreting GnRH
GnRH triggers anterior pituitary to produce FSH & LH
FSH promotes spermatogenesis (it will take up more testerone
and enhance sperm production)
Sertoli cells release inhibin. (