AP Biology 2022-2023-Mrs. Doyle Assignments

Please watch this video this evening to prepare you for the review of Units 1 and 2, which will take place on Tuesday and Wednesday.
(This will count as a HW assignment grade).

  Biologists are interested in preserving the diversity of living organisms on the planet. 
(a) Explain THREE of the following processes or phenomena, using an appropriate example for each. 
 mutation 
 adaptive radiation 
 polyploidy
  population bottlenecks 
 growth of the human population

 (b) For each process or phenomenon you selected in (a), discuss its impact on the diversity of life on Earth.   

  Biologists are interested in preserving the diversity of living organisms on the planet. 
(a) Explain THREE of the following processes or phenomena, using an appropriate example for each. 
 mutation 
 adaptive radiation 
 polyploidy
  population bottlenecks 
 growth of the human population

 (b) For each process or phenomenon you selected in (a), discuss its impact on the diversity of life on Earth.   

Describe the modern theory of evolution and discuss how it is supported by evidence from two of the following areas.

population genetics
molecular biology
comparative anatomy and embryology

Will be counted as a 50 point Test Grade

A portion of specific DNA molecule consists of the following sequence of nucleotide triplets.
TAC GAA CTT GGG TCC
This DNA sequence codes for the following short polypeptide.
methionine – leucine – glutamic acid – proline – arginine
Describe the steps in the synthesis of this polypeptide. What would be the effect of a deletion or an addition in one of the DNA nucleotides? What would be the effects of a substitution in one of the nucleotides?

Meiosis reduces chromosome number and rearranges genetic
information. 


 


a.  Explain how the reduction and
rearrangement are accomplished in meiosis.


 


b.  Several human
disorders occur as a result of defects in the 
meiotic process.  Identify ONE
such chromosomal abnormality ; what effects does it have on the phenotype of
people with the disorder?  Describe how this abnormality could
result from a defect in meiosis. 

Due at the end of the class period today

Reflect upon Henrietta's life: What challenges did she and her family face? What do you think their greatest strengths were? How did she face death? What do you think that says about the type of person she was?

Cells transport substances across their membranes. Choose THREE of the following four types of cellular transport.

Osmosis
Active Transport
Facilitated Diffusion
Endocytosis/exocytosis
For each of the three transport types you choose,Describe the transport process and explain how the organization of cell membranes functions in the movement of specific molecules across membranes; andExplain the significance of each type of transport to a specific cell (you may use difference cell types as examples.)

 Explain what occurs during the Krebs (citric acid) cycle and electron transport by describing the following:

The location of the Krebs cycle and electron transport chain in mitochondria.
The cyclic nature of the reactions in the Krebs cycle.
The production of ATP and reduced coenzymes during the cycle.
The chemiosmotic production of ATP during electron transport.

The unique properties (characteristics) of water make life possible on Earth. Select three properties of water and:

for each property, identify and define the property and explain it in terms of the physical/chemical nature of water.
for each property, describe one example of how the property affects the functioning of living organisms.

Please upload all summer work here.