bioenergetic reactions

Test Thursday on bioenergetic reactions and Mitosis/ Meiosis

For monday:

The Musculoskeletal System [24:30]

Enviro-Tacklebox: Module 05: Processes and Cycles in the Environment: Rotten But Not Forgotten

Posters due Wednesday so they'll be up for the test. (you'll get instructions and paper tomorrow!)

Prelude to genetics

Deep thoughts by Thomas Hardy:


Heredity


I am the family face;
Flesh perishes, I live on,
Projecting trait and trace
Through time to times anon,
And leaping from place to place
Over oblivion.

The years-heired feature that can
In curve and voice and eye
Despise the human span Of durance -- that is I;
The eternal thing in man, That heeds no call to die

Life's greatest miracle.

note to sub: make sure the speaker wire ( green end) is plugged into the computer (not projector) and that the big box part of the speaker is switched on.

Students need to be listening!!!

Monday-all classes

Students need to Copy down these questions:
1. What is the role of deoxyribonucleic acid (DNA) in reproduction?
2. Why is the egg or sperm cell still incomplete, even after meiosis?
3. How does a man’s production of sperm differ from a woman’s production of eggs over a lifetime?
4. What is the zona? How does it help or hurt the process of fertilization?
5. What is a blastocyst? Why is it in danger?
6. What is gastrulation? How does it work?
7. What is the role of genes in embryonic and fetal development?
8. How does the fetus obtain its nourishment?


Go to the link below, Watch the movie and answer the questions!
http://www.pbs.org/wgbh/nova/miracle/program.html

step by step mitosis very good demo!

This site is great for your basic mitosis info!!!
http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_cell_cycle_works.html

links for mitosis worksheet

mitosis tutorial
http://www.cellsalive.com/mitosis.htm

sketches
http://www.johnkyrk.com/mitosis.html
onion:
http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/activity_description.html

whitefish:
http://www.dmacc.edu/instructors/mitosis.htm

onion pic:
http://www.marric.us/files/images/mitosis.gif

next topics covered: bioenergetic reactions and cell division

use these sites to help with cell division : mitosis and meiosis
http://www.pbs.org/wgbh/nova/miracle/divide.html

go here and then click on "what is mitosis and meiosis?"
http://learn.genetics.utah.edu/content/begin/tour/oldtour.html

Transcription and translation help: ( for later)
http://learn.genetics.utah.edu/content/begin/dna/

Next word list: #6 (20 terms)
WORD LIST- for DNA and mitosis1. Complementary base pairs- The nucleotides that fit together to form the DNA double helix, adenine with thymine and cytosine with guanine . Here is a visual, if the original strand of DNA has the following bases: A T C G A T T C G A T (ORIGINAL OR TEMPLATE)Then the complimentary bases would be: T A G C T A A G C T A (COMPLIMENT TO THE ORIGINAL) 2. Replication- the process of copying the original strand of DNA to form a new, IDENTICAL, strand of DNA so that when the cell divides the daughter cells have the same exact genetic information as the parent cell.3. Mutation- any change in someone’s strand of DNA, it could be a few letters (bases) or just one base.4. Protein synthesis- using a cells DNA to code for and then make a specific protein needed by the cell, three types of RNA are needed to do this.5. Trait- a physical characteristic or feature of a person (ex; brown hair, tall, diabetic, blue eyes)6. Genes- the segments of a person’s DNA that code for a certain trait. 7. Transcription- when mRNA copies a segment of DNA in order to take the message out of the nucleus and to a ribosome. It must be written in the RNA’s language which uses Uracil in place of thymine for a nitrogen base. The uracil still pairs up with Adenine.8. mRNA- messenger RNA is the RNA responsible for sneaking into the nucleus of a cell and copying off a certain piece of DNA and then carrying that piece of the code out to a ribosome. 9. Codon- three letters of a mRNA strand that determine which amino acid is to be made by a ribosome.10. Translation- when the code made by the mRNA gets turned into an amino acid in a ribosome.11. rRNA- is ribosomal RNA, it’s what makes up the ribosome and turns a codon into an amino acid.12. tRNA- is the type of RNA that puts all of the amino acids in the correct order to form the proper protein. It has a complimentary RNA code for the newly produced amino acid to hook on to.13. Polypeptide bond- it’s what connects one amino acid to another to make a complete protein.14. Non-disjunction- When the chromosomes are not pulled apart evenly during anaphase of meiosis. This is what leads to Down’s syndrome (aka: trisomy 21 which means three of the 21st chromosome).15. Chromosome- a condensed segment of DNA, humans have 46 chromosomes in every cell in their body,(except egg and sperm)16. Chromatid- half of a duplicated chromosome- the whole X represents two sister chromatids!17. Mitosis- the process of forming two new, genetically identical cells (skin, liver, hair, muscle, blood, etc. all of these cells are referred to as being 2N= the whole chromosome number, one set from Mom and one set from Dad)18. Meiosis – the process of forming 4 new, GENETICALLY DIFFERENT cells with half the genetic material of the original cell. These cells only have 23 chromosomes (they are called 1N)19. Zygote- forms when the egg and the sperm unite and make the first cell of a new organism.20. Allele- a choice for a trait, you have two alleles for every trait in your body, one from mom and one from dad.