Which of the following is a factor that can stop normal cells from growing?
Explanation: Contact inhibition prevents cells from further growth. When a sungular cell is in contant with another, it will stop it’s growth right away.
What are two reasons why cells divide rather than continue to grow indefinitely?
Chapter 10
| Question | Answer |
|---|---|
| What are two reasons why cells divide rather than continue to grow indefinitely? | The larger a cell becomes… 1the more demans the cell places on its DNA 2the more trouble the cell has moving enough nutrients and wastes across the cell membrane |
What are two main reasons cells divide?
Two reasons that cells divide is because of meiosis and because of mitosis. Meiosis has to do with reproduction and mitosis has to do with cell repair or replacement.
Can a cell grow indefinitely?
What are two reasons why cells divide rather than continue to grow indefinitely? a. The larger a cell becomes, the more demands the cell places on its DNA. The larger a cell becomes, the more trouble the cell has moving nutrients and wastes across the cell membrane.
What are the two cells called after cell division?
In cell division, the cell that is dividing is called the “parent” cell. The parent cell divides into two “daughter” cells. The process then repeats in what is called the cell cycle.
What does 2N 4 mean?
In this example, a diploid body cell contains 2n = 4 chromosomes, 2 from mom and two from dad.
What are the steps in cell division?
The cell goes through 4 steps (prophase, metaphase, anaphase, and telophase.) The cells at the end of the process also have the same amount of chromosomes as the parent cell. At the end, 2 cells are produced. Mitosis is used to make body cells, and occurs in the body.
What do cells need to multiply?
Mitosis is when a cell multiplies by spliting into two, to do this there must be enough nutrients and the cell must have undamaged DNA. The cell multiplies its DNA and then through Prophase, Metaphase, Anaphase, and Telophase. Once it goes through this process there is two cells.
How do healthy cells divide?
Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.
Why must cells divide and specialize?
why must cells divide and specialize? it is essential to generate new cells for growth and to repair tissues in injury or illness.
Why does a cell divide instead of grow?
Cells are limited in size because the outside (the cell membrane) must transport the food and oxygen to the parts inside. As a cell gets bigger, the outside is unable to keep up with the inside, because the inside grows a faster rate than the outside.
What are the three reasons that cells typically divide?
What are the three reasons that cells typically divide? Get bigger. Repair. Reproduction.
What is responsible for telling cells how do you behave?
Hidden inside almost every cell in your body is a chemical called DNA. A gene is a short section of DNA. Your genes contain instructions that tell your cells to make molecules called proteins. Proteins perform various functions in your body to keep you healthy.
Where can you find dividing cells in a human being?
Mitosis is how somatic—or non-reproductive cells—divide. Somatic cells make up most of your body’s tissues and organs, including skin, muscles, lungs, gut, and hair cells.
What is called cell division?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
Why is the tip of an onion root a good source of dividing cells?
Root tips of onion are used because the cells there are actively growing and dividing, giving a good chance to see chromosomes during different stages of cell division.
Why do some cells never divide?
When aging cells stop dividing, they become “senescent.” Scientists believe one factor that causes senescence is the length of a cell’s telomeres, or protective caps on the end of chromosomes. It is well known that if DNA is damaged, cells recognize the defect and stop dividing – a critical safeguard against cancer.