hey hey!

why hello lovely blog readers! this week is gonna be a pretty short post i think, i ges i'll just go over what we have been doing in class. OK you guys are gonna be SO of me, i remembered my notebook!!!! yay! i no, im amazing, this means ill be able to give you guys all the wonderful details on reproduction!!! hahaha ok just bear with me poeple, we have to cover this sooner or later so lets just get it over with OK? ^_^ alright. OK first thing we did in this unit was Mr. Finley told us to write down everything we know about reproduction, (would my table care to explain y they all looked at ME to explain it?!) OK my table was a lidl apprehensive (great word!), so all we got was like, X chromosome, Y chromosome, boy+girl, and cells split in 1/2. nobody wanted to write down the obvious so, thats it. but that stuff IS important so i will be a wonderful lidl student and define it all for u! ur welcome! (haha jk)

Chromosomes- ONE pair determines the gender. XX= girl XY=boy, humans have (i think) 23 pairs per cell (feel free to correct me so i can change that) and they are basically just bunched up DNA.


Cell reproduction (basically what we were getting at)- cells must copy all chromosomes, DNA, organelles, then be big enough to split. mitosis, 8 steps: (ok some of this might be messed up so plz correct me. but this is pretty much straight of our worksheet) also-im sorry i cant get pictures for this but google images doesn't seem to be filling my scientific needs and i cant get the image of the website SO if u would like to see mytosis in action-heres the link- link link!
interpahase- regular cell oh how beautiful.

prophase- just starting to split, nucleas splitting

prometaphase- copying chromosomes

metaphase- DNA replication

anaphase- DNA splits

telephase- whole cell begins to split (OMG)

cytokenesis- everything is copied, cells are almost seperate

interphase-two regular cells how touching.

Ok next we shared our wealth of information with the class where we found some wonderful new terms, like, asexual. woo hoo. ok here we go,

asexual- an organism that does not need another organism to reproduce

egg cell- cell from female used for reproduction

sperm cell- cell from male used in reproduction

fertilization- reproduction process (or as a certain student would call it would call it, um, making a baby ;) dont worry, we still luv u)

Ok then. now rather then go into unnecasary detail, i'll go over the wkst.

u no, the onw with the root tip,

again, corrections are welcome.

1. why would a root tip have cells that are reproducing?

my answer- because it's at the end of the cell and can nutrients the easiest.

class approved answer- because that is where the plant is always growing

we're skipping 2

3. what is the pinkish dyed portion of the cell supposed to be?
i believe it could have been either pink, blue, or brown for you guys but u no wat i'm talking about so thats what matters.

my answer- nucleas, some of them are splitting, some have chromosomes.

class approved answer- chromosomes (i think)

skip 4 my pets

next side,
1. a sperm cell and egg cell each have 1/2 the number of chromosomes as a cheek. why do you think this is? (i dont have part 2 of this question)

my answer- Because a cheek celll comes from the complete organism and the sperm and agg cell are 2 parts of one whole organism so they have 1/2 the chromosomes so that the child has 100% of the chromosmes, if they had 100% each then their kid would be a weird creeper thing. also-cheek cells are asexual and split to produce unlike the egg and sperm.

class approved answer-well i was actually correct for that one so...


2. Cell Theory says that cells come from pre-existing cells. what must happen to a cell in order for this to be true?

answer- (do i really have to write it twice?) the cells have to split but contain enough parts to do so, copy all DNA, chromosomes, organelles, etc. etc. (interphase, prophase, prometaphase, metaphase, anaphase, telephase, cytokenesis, interphase)

3. We now that cells have lots of organelles within them as well as DNA. Where does the DNA cone from? where do you think the organelles come from?

answer- the cell it split from (remember, DNA replication, cell reproduction?)

4 is basically your speculation and we know the process already. 5 i have to go over again befor i can tell you.

well, i have a biography to write, a dog to play with, and test to study for so have a fun life and say hi to me on monday because...idk i just love wen people say hi 2 me ^ ^

also-in science PLZ just say hey to steve bcuz hes never gonna stop saying wats crackin?! until u do. hugz to all of you! bi bi!!!