Cell+Cycle+Essential+Questions

** Compare and contrast a photocopier and a muscle cell? **   ** Compare and contrast chromosomes and playing cards? ** Compare and contrast a photocopier and a muscle cell－ photocopier are connected and made with connecting screws and muscle cells are connected by glycocalyx, a sugary coating on the outside of cells. Both things are quite important for life. Muscle cells hold your eye in position so you can see the world while photocopiers are stabled by screws. Muscle cells make other cells when needed and photocopiers can also duplicate writings. And they both need a source of energy. They are different by how photocopiers are activated by electricity and cells are powered by food and other sources of energy. Muscle cells are living and duplicate when you are hurt and during growth, commanded not by us, while photocopiers are commanded by us.
 * __ Essential Questions __**



Compare and contrast chromosomes and playing cards?-Just before the cell divides, the DNA of each chromosome makes a copy of itself. At the beginning of card games, people draw a card- which is kind of like making a copy of itself. During Prophase 1, enzymes cut sequences of DNA from the chromosomes. Then the sequences are exchanged between the chromosomes, which allows for an exchange of genes between the male chromosomes and the female chromosomes. Seperation of chromosomes are at random just like dealing out the cards.

Cell Cycle and Meiosis

1.What are the advantages + disadvantages of both sexual and asexual reproduction?

Sexual:

Pro- Different traits, creates diversity.

Con- requires two organisms to produce offspring.

Asexual:

Pro- reproduction is very fast.

Con- Not much diversity since it is the copy of original.

2.Name 3 organisms that reproduce sexually and 3 that reproduce asexually.

Sexual- Cat, Human, Dog. Asexual- amoeba, aphid, Aspen tree.

3.What is the relationship between the cell cycle, mitosis and meiosis?

Similarity- both produce cells. Difference- Mitosis makes 2 cells, meiosis makes 4. Mitosis is the exact copy and meiosis is different copy.

Cell cycle is the process in which a cell grows, divides, and creates another cell. Meiosis is the process where sex cells are produced. The first phase of the cell cycle is the phase called interphase. This is the phase where the DNA is duplicated. The second phase is called mitosis, in which the cell replicates. The last phase, cytokinesis, is the phase in which the cell splits and becomes two or more cells. Meiosis is not a cycle because it does not create more sex cells from the sex cells.

4.What are the cell cycle and meiosis used for? The cell cycle is a process for growth and repair, including Mitosis and Meiosis. Mitosis reproduces and makes two cells that are identical to each other, then in he end, two cells are formed. This way, the mitosis process always creates the same cells. Meiosis is a process in which a cell splits into 4 sex cells, which have half the number of chromosomes as the original parent cell. Meiosis is a process essential for sexual reproduction. The cell cycle and meiosis are used primarily for reproduction to make more cells. This is the cell cycle. Cell cycle and meiosis are both processes that make the nucleus of the cell split into 2 or more.

5.What is similar about the cell cycle and meiosis?

The cell cycle is similar to meiosis because the cell cycle is essentially just mitosis. Mitosis is a cycle that whenever the cell reproduces, it is always the same, because it does not mix DNA and genes with another one. It only takes one cell to reproduce. They are similar because of the fact they all reproduce in a kind of way, and all are in a way similar to the first of the kind that is the 'father' or birthparent of a kind. Cell cycle and the meiosis are both similar in the way because of the fact that they require the growth and repair process. The two processes first grow and get enough material to split into two or more. After they split, they have to use resources to create the membrane that has been split to complete the reproduction process.

6.What is different about cell cycle and meiosis?

The difference about cell cycle and meiosis is that cell cycle is always constant, and it never changes compared to it's 'father' and that it always goes in a cycle and never changes, hence it's name the cell cycle. However, meiosis takes traits from both the genetic parents' DNA fragments, and the fact that it is constantly changing, having different traits generation after generation. Meiosis has variations in every stage, because of the fact that it mixes the genes with both the sex cells.