Biology

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created 9 years ago by jncanf
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1

The most important characteristic of water

Polarity of Hydrogen-Oxygen bonds.

2

water is..

the polarity of its bonds. high specific heat a versatile solvent and dissolve a number of different substances.

3

What is most important to the cellular membrane of biologic macromolecure

Phospolipids

4

Phosholipids

two fatty acids of varying length bonde to phosphate group. making the membrane possible.

5

What cellular organelle is the site of the catablic pathway leading to cellular energy production.

Mitochondrion

6

What type of cellular reproduction do bacteria undergo

Binary fission

7

What is the probability that a recessive trait would be expressed in offspring if two parents who are both heterozygous for the desired trait were crossed.

25%

8

In which organelle does transcription begin

mRNA

9

Lipids

fat: fatty acids, phospholipids and steroid

10

Fatty acid

satuated and unsaturated. saturated contain no double bonds. solid unsaturated have one or nor double bonds. liquid

11

Phospholipids

consist of two fatty acdis. charged and therefore polar, whereas the hydrocarbon taild of the fatty acid is nonpolar. this is important in the function of cellular membranes.

12

Steroids

component of memebranes, but many are precursors to significant hormones.

13

Protein

the most significant contributor to cellular function.

14

20 molecules polymers

aminoacid

15

Nucleic acid

components of molecules of interitance