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Revision Notes ­ Biology (Extension)

B7: Life, etc.

Respiration is the process by which we release the energy from glucose in our
It happens constantly in every cell in the body.
This energy is used to build up larger molecules (i.e. proteins), contract muscles
and maintain a constant…

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When your heart rate increases, so does your blood pressure. This is given as a
measure of your systolic (contracted) blood pressure over your diastolic
(resting) blood pressure. A normal range is between 120/80 and 100/60.
Blood Types
Blood is the liquid that transports stuff around the body (no shit).…

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The genetic diagrams are similar to normal ones, just with different possibilities.

The Circulatory System
The circulatory system is responsible for all transportation in the body. It is
made up of two circuits joined together:
1. The first takes deoxygenated blood to the lungs to pick up…

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The same can also happen in reverse ­ waste diffuses back into the capillaries. The
advantage of tissue fluid is that multiple cells can share a capillary.

The Skeletal System
The skeleton's job is to support and protect your internal organs, allowing you to
Vertebrates have bones inside the…

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3. Family medical history ­ To make diagnosis easier, since diseases often run in
4. Lifestyle factors ­ Whether the patient smokes or drinks heavily.
5. Current medication ­ Because some medications interact badly.
6. Physical activity ­ For fitness programs ­ this means that a fitness program can…

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3. Torn Ligaments ­ When the ligament actually rips in two. Basically sprain 2.0,
and can cause you to lose control of a joint.
4. Torn Tendons ­ A tear in a tendon caused by contracting a muscle while it is
being pulled in the other direction.
The RICE method…

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2. Some is lost as heat.
3. Some is excreted.
4. Some is used to make inedible tissues, like bone.
This energy isn't made into biomass, so it doesn't pass on to the next level.
So much energy is lost at each level that you rarely see chains with more…

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When two species live together in direct contact, it is known as a symbiotic
Commensalism is a type of relationship that benefits one species but has no effect
on the other, e.g. when an organism uses a host for transportation or housing.
Parasitism is a relationship that benefits…

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Carriers are common in Africa because the allele gives them an advantage. They are
more likely to survive and pass on their genes because of natural selection.

Photosynthesis is the process by which plants make glucose from sunlight.
This happens in the leaves of all green plants, inside the…

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2. Make sure that you don't move it somewhere cooler to deprive it of light.
3. Use a large flask so that there is plenty of CO2, or a fresh source of sodium

Plants and Respiration
Plants use respiration to turn glucose and oxygen back into energy and CO2.…


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