8/14/2019 Biology 1-19 Midterm Review

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Eddy Egan January 19, 2007Tuliszewski Period

Midterm Review Questions1. What is science and what does it only deal with? (3)

An organized way of using evidence to learn about the natural world.

Only deals with the natural world

2. What are the steps in the scientific method hypothesis? (8)Observation(Asking a question), Formulation of an hypothesis, Testing thehypothesis(setting up a controlled experiment), Conclusion

3. What is the idea of spontaneous generation?(8)The idea that life could arise from non-living matter

4. What are some of the characteristics living things share?Made Up of Cells

ReproduceBased on a universal genetic codeGrow And DevelopObtain and use Materials And EnergyRespond to their EnvironmentMaintain a stable internal environment(Generally) Change over Time

5. What are the two forms of reproduction? And what do they consist of?Sexual- cells from two different parents unite to produce the first cell of a new

organismAsexual- the new organism has a single parent. A single parent divides in half to form two new organisms

6. What are ionic bonds? What are covalent bonds? What are van der Waals forces?Ionic bonds- formed when one or more electrons are transferred from oneatom to another Covalent bonds- forms when electrons are shared between atomsVan der Waals forces- intermolecular forces of attraction

7. Why is water polar?

Uneven distribution of electrons between the oxygen and hydrogen atoms.

8. What is the difference between adhesion and cohesion?Cohesion is the attraction between molecules of the same substance, whileAdhesion is an attraction between molecules of different substance.

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18. What are the levels of organization in multicellular organisms? How do theyrelate to each other?

Individual cellsTissues- A group of similar cells that perform a particular function

Organs- Many groups of tissues working together Organ Systems- A group of organs that work together to perform a specificfunction

19. A principal chemical compound that cells use to store and release energy iscalled? How is this energy released?

Adenosine Triphosphate or ATPReleased by the breaking of a chemical bond between the second and third

phosphates.

20. Plants gather the suns energy with what light absorbing molecule? What is the plants principal pigment

PigmentsChlorophyll