Ch. 1 Test Review

Biology

Requirements for Life• Know the properties/requirements for life:– Made of cells– Metabolism (sum of all chemical reactions)– Respond to stimuli -*This includes homeostasis where

you maintain stable living conditions.– Reproduce *Includes heredity, passing traits on.– Use energy– Produce waste– Grow & Develop

• If a puppy grows into an adult dog this is an example of…–A Homeostasis–B Growth & development–C Metabolism–D Made of cells

Metric system• Needed for scientists to speak a

common language.• Based on units of 10• Know your prefixes and units – p. 14

Example…

•1 kilometer = _________m•1 kilogram = _________ gm

10001000

Terms• Chunk the terms to figure out their meaning.

•Ex. Biology is…–The study of

•Life

Know what these are…

•Hypothesis•Observation

Use your ___ _______•How do you test a hypothesis?

5 Senses

Perform an experiment!

Lab Safety•Most important rule… Follow

the teacher’s directions & remain calm.

Ethics in ScienceEthical behavior is needed in science because…• All scientists rely on the work of other scientists.Scientists must report correct information.• People depend on disease breakthroughs to

manage their health.Scientists may use people in their tests/trials.• People used in experiments might be exploited

or exposed to known dangers if the scientists do not behave ethically.

Lab Techniques p. 15• We use microscopes to study

microscopic organisms “little critters”.• Because these organisms include

bacteria it is much more important to use sterile techniques.

• Sterile techniques, are methods that keep unwanted organisms out of a lab to reduce risk of contamination.