https://padlet.com/2025tottenb/smbwhl727ufmyq1t Bio 9 en-us 2022-05-16 13:20:38 UTC 2022-05-17 13:24:22 UTC hello@padlet.com 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185732975 1. Chromosome- Single, circular DNA molecule that contains most of the cell's genetic information. 
2. Chromatin- the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.
3. Centromere- the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
4. Spindle-a fanlike microtubule structure that helps separate the chromatids
5. Mitosis-The division of the cell nucleus. Its four phases are prophase, metaphase, anaphase, and telophase.
6. Cell differentiation- process where cells become differentiated and specialized
7. Centrioles- tiny structures located in the cytoplasm of animal cells that help organize the spindle
8.Coils/supercoils- make up chromosomes in DNA
9.Stem cells- unspecialized cells from which differentiated cells develop. 
10.Cell division- the process by which a cell divides into 2 new daughter cells.]]> 2022-05-16 13:41:09 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185732975 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185780536 2022-05-16 14:07:03 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185780536 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185793331 2022-05-16 14:13:42 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185793331 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185809620
Each cell turns on only a fraction of its genes at any given time. The rest of the genes are turned off. The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development for the cell. ]]> 2022-05-16 14:22:18 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185809620 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185818463 2022-05-16 14:26:52 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185818463 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185819196 2022-05-16 14:27:16 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185819196 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185900708 2022-05-16 15:10:16 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185900708 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185907548 1. What happens during each phase of mitosis?
Prophase - duplicated chromosomes, the centrioles move to opposite sides of the nucleus, spindles are formed and DNA strands attach at their centromere, nuclear envelope breaks down
Metaphase - Centromeres line up across the middle of the cell, spindle fibers connect each centromere to the end of a spindle
Anaphase -Centromeres are pulled apart, the chromosomes separate into two groups near the poles of the spindle
Telophase -Nucleus becomes visible in daughter cell
2. Do newly produced daughter cells from cell division have a higher or lower surface area-to-volume ratio compared to their parent cell? - Higher because they are smaller. 
3. What is the end result of cell division for each daughter cell produced? The same amount of chromosomes as the original parent cell, but with a higher surface area to volume ratio; Allows an organism to repair and maintain its body
4. What happens during each phase of the cell cycle?
G1 - Cells increase in size and synthesize new proteins and organelles. 
S - New DNA is synthesized when the chromosomes are replicated.
G2 - Many of the organelles and molecules required for cell division are produced.
M - Cell division occurs.


]]> 2022-05-16 15:14:24 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185907548 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185914525  ]]> 2022-05-16 15:18:33 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185914525 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185915871 2022-05-16 15:19:19 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185915871 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185919272 2022-05-16 15:21:06 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185919272 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185923643 2022-05-16 15:23:37 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185923643 2025tottenb https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185928960 Cell growth and Division happens around us all the time. It happens in us daily so that we can grow and develop. We need cell growth and division so that organisms can continue to grow and change. Cell growth and division also is important because it is an essential means for reproduction for all living things it allows organisms to transfer their genetic material to their offspring. That is why we are in need of cell growth and division. ]]> 2022-05-16 15:26:42 UTC https://padlet.com/2025tottenb/smbwhl727ufmyq1t/wish/2185928960