Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
3 problems caused by growth |
1.DNA overload 2.Getting food 3. Expelling waste |
|
Cell Division |
Divides into 2 daughter cells |
|
3 problems solved by cell division |
1.each daughter gets own DNA 2. Reduce volume 3. Increase surface area |
|
When are chromosomes visible |
During cell division |
|
Interphase |
Cell grows, G1 S G2 |
|
Cell Cycle |
Series of events that cells go through as they grow and divide |
|
Phases of Mitosis |
PMAT |
|
Role of the spindle |
Separate chromosomes |
|
Diploid (2n) |
46 |
|
Haploid(n) |
23 |
|
How are gametes produced |
Meiosis |
|
Why is the chromosome # reduced in meiosis |
Replication doesn't occur |
|
What does meiosis result in |
Haploid cells |
|
Cell plate |
Cell division of plants |
|
Metaphase |
Chromosomes line up down the middle |
|
If a parent cell has 4 chromosomes,how many will daughter cells have in mitosis |
4 chromosomes |
|
If prophase has 8 chromatods,how many chromosomes in each nucleus in telophase |
4 chromosomes |
|
What does the nucleus contain? |
Genetic material |
|
Cell specialization |
Prokaryotes don't have specialization |
|
Solution and mixture |
Salt stirred into water |
|
pH of stomach acid & oven cleaner |
Stomach below 7,oven cleaner above 7 |
|
Hypothesis |
Testable explanation |
|
Homeostasis |
Keeping internal conditions stable |
|
How do skin cells near a cut behave |
They grow and divide until they come in contact with one another |
|
How might multinucleated cells come from |
Mitosis has occurred repeatedly without cytokinesid having occurred |
|
Explain the role of p53 in growth and division of cells |
Healthy p53 will stop the cell cycle after cells have properly replicated a defect in p53 will allow the cells to multiply chaotically |
|
How might a scientist test a cell for cancer if it has not yet formed a tumor |
Culture it in a Petri dish to see if it responds to the signals to regulate the cell cycle |