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Biology

Biological Diversity, Animal Behavior & Endangered Species Study Guide

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Environmental Science
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Biological Diversity


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Proteins and Nucleic Acids

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Biology
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Nutrition
Molecular biology
Nitrogen metabolism
Proteins
Amino acid
Zwitterions
Peptide
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Protein types: enzymatic structural storage transport hormonal receptor contractile Building Blocks Amino acids -> Proteins Nucleotides -> DNA/RNA Shape and color are important features of building blocks Protein/Amino Acids monomer = amino acid polymer = joined by peptide bonds (dehydration reaction) Dehydration process Polymerizing amino acids ? R group dictates what the polypeptide will do Hydrophobic = CH 3 ; Hydrophilic = -OH, -SH- NH (charged particles R Groups 20 different life-building side chains (amino acids) Polypeptide polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule

What's on the AP Exam

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Biology
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Agronomy
Botany
Cellular respiration
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AP Biology

I. Molecules and Cells 25%

-Chemistry 7%

-Cells 6%

-Photosynthesis 4%

-Respiration 4%

-Cell Division 4%

II. Genetics and Evolution 25%

-Heredity

-Molecular Genetics 9%

-Evolution 8%

III. Organisms and Populations

-Five Kingdom Survey 8%

-Plants 12%

-Animal Structure and Function 10%

-Animal Reproduction and Development 6%

-Animal Behavior 4%

-Ecology 10%

Lab #4 Plant Pigments and Photosynthesis - Questions

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Biology
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Biological pigment
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Lab #4 Plant Pigments and Photosynthesis Exercise 4A: Plant Pigment Chromatography Topics of Discussion 1) What factors are involved in the separation of the pigments? 2) Would you expect the Rf value of a pigment to be the same if a different solvent were used? Explain. 3) What type of chlorophyll does the reaction center contain? What are the roles of the other pigments? Exercise 4B: Photosynthesis / The Light Reaction Topics of Discussion 1) What is the function of DPIP in this experiment? 2) What molecule found in chloroplasts does DPIP ?replace? in this experiment? 3) What is the source of the electrons that will reduce DPIP? 4) What was measured with the spectrophotometer in this experiment? 5) What is the effect of darkness on the reduction of DPIP? Explain.

How do cells divide?

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Mitosis
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cell
How do cells divide? There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by a number of genes. When mitosis is not regulated correctly, health problems such as cancer can result.

Biology chapter 1

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Meiosis
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Technology

Interphase takes the longest to complete. This is because the cell is recovering from cell division in this stage. Cytokinesis is most significantly different between plant and animal cells. They are different because unlike plant cells, in animal cells, a cleavage furrow is formed. The purpose of mitosis is to increase the number of cells that have the same set of DNA ans parent cells. When they split they produce identical cells with a complete set of DNA. Conclusion:

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