10-1-12 Lab Biology Quiz review: Biosphere – “Bio” living things ...

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23 Οκτ 2013 (πριν από 4 χρόνια και 2 μήνες)

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10
-
1
-
12

Lab Biology

Quiz review:

Biosphere


“Bio” living things; “sphere”


around the globe. All living things in all the places they are
found on earth.


1.4 Biologists Tools and Technology

The microscope provides an enlarged image of an object. For
ex.

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Light microscope (LM)

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SEM


Scanning Electron microscope (3D). May be used to look at large viruses.

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TEM


Transmission Electron Microscope (2D), is typically used to examine viruses. Computer
allows for color so that we can examine organelles.


Imagi
ng technology is used in medicine.

-

X
-
Rays

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MRI


Magnetic Resonance Imaging

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fMRI


Functional MRI. Patient does an activity and fMRI can observe types of things that
happen in each area of the brain.


Complex Systems are modified on Computers

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Computers ar
e used to study systems that cannot be studied directly


i.e. heart attack, the
effect of medicines on the body, movement of water molecules into and out of a cell.

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Computer models are used when experiments are not safe, ethical or practical.


The tools

of molecular genetics give rise to new biological studies.

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A gene is the segment of DNA that stores genetic information.

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Through our understanding of DNA we can study genetics on a molecular level. Molecular
genetics and genomics.


1.5 Biology and Your
Future

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Key Concepts

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Understanding biology can help you make informed decisions.


Your health and the health of the environment depend on your knowledge of biology.

Knowledge of Biology helps us understand our health.

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Food allergies

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Potential effects of
obesity

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Cancer

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Effects of alcohol, tobacco and other drugs


Refer to the picture on page 25 of the text that shows comparison of healthy and unhealthy bodies.


Knowledge

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Interactions in ecosystems

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Pollution

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Biodiversity


Biotechnology offers great promise

but also raises many issues.

Biotechnology is the use and application of living things and biological processes.

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DNA testing in medicine and forensics

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Transgenetic crops (genetically modified)

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Transgenetic bacteria


Questions raised

about the use of biotechnology.

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Safety of genetic
ally

modified crops

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Spread of undesirable genes

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Decrease in biodiversity

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Ethical considerations.


Objective: Work on 1.5 Bio and Your Future


Importance of Biology

Future

Knowledge of Biology Helps

-

Heal
th of environment


pollu瑩on con瑲ol

-

Your health



food
s
, con瑲ol



lifes瑹le
(s浯ke)

Biology

and 瑨e W
orld

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Environmental issues such as pollution,
biodiversity, natural resources, use, etc.

(deformities in frogs).


10/2/12: Absent


10/3/12


Biology

Lab will begin this Thursday and will take place weekly on Thursdays.


Read 2 articles to supplement the text book. “Brain Monamine…” and “New Genetic Mutations….”


Vocabulary:

Gene


S
egment of DNA that shares genetic information.

Genome


Entire DNA seq
uence of an organism.

Genomics


Study of genomes.

Molecular Genetics


Study and manipulation of DNA molecule.

Genetic Screening


Testing DNA to see if a person is at risk for genetic disorder.

Transgenic


An organism that has a gene from a different
species.



Biology and Your Future
:


Importance of Biology


Personal Health

Lifestyle Choices

Pollution in an Ecosystem

What you eat, drink

Vitamins found in foods are
Exercises, effects of using
tobacco, sunscreen

What caused deformit
ites

Chemicals in the water

printed on labels.

Ultraviolet radiation



Biotechnology



Includes productions, processes and techniques



Used in other fields


Benefits and Biological Risks

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Transgenic organisms

Benefits and Ethical Considerations

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Human genetic screening