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How do growth factors influence the progression of the cell cycle?
Growth factors are signaling molecules that can stimulate cells to grow and divide. They play a crucial role in regulating the progression of the cell cycle by activating specific proteins called cyclin-dependent kinases (CDKs). These CDKs help control the timing and progression of different phases of the cell cycle, such as G1, S, G2, and M phases. By activating CDKs, growth factors can promote cell proliferation and regulate cell cycle progression.
How do body cells grow and divide?
they divide and grow by undergoing a process called as mitosis
How do T cells activate B cells in the immune response process?
T cells activate B cells by recognizing antigens on the surface of the B cells and releasing signaling molecules called cytokines. These cytokines stimulate the B cells to divide and produce antibodies to fight off the invading pathogens.
Cells that no longer divide are called what?
Cells that no longer divide are called senescent cells. Senescence occurs when the telomeres found in the DNA of organisms become too short.
How can a fibroblast produce a fiber many times its own size?
Fibroblasts produce fibers, such as collagen and elastin, through a process called extracellular matrix synthesis. They secrete large quantities of structural proteins and other molecules that assemble outside the cell to form fibers. This process allows a fibroblast to create fibers that are much larger than the cell itself.
Which chemicals are secreted by T-helper cells to stimulate b-plasma cells to divide?
These chemicals are called CYTOKINES.
Is the dividend inside or outside the brakcet?
Yes, because when you divide you divide the # outside of the braket which is the dividend.
Are chromosomes made of DNA and proteins?
Yes, chromosomes are made up of DNA and proteins. DNA is a long, double-stranded molecule that carries genetic information, while proteins help to organize and compact the DNA into a condensed structure called chromatin. When cells divide, the chromatin further condenses into visible structures called chromosomes.
What is it called with the cell divide to create new cells is called?
It is called mitosis when regular cells divide. It is called meiosis when sex cells divide.
What are specialized proteins that both regulate the cell cycle and cause it to occur?
Proteins called internal regulators and external regulators control the cell cycle. Internal regulatory proteins allow the cell cycle to proceed only when certain events have occurred in the cell itself. External regulatory proteins direct cells to speed up or slow down the cell cycle.
What is the number you divide into called?
The number you divide into is called the divisor.
What is a zygote called when it begins to divide?
when a sygote starts to divide it is called an
What is DNA packaged into?
DNA is packaged into structures called chromosomes. Chromosomes are composed of DNA wrapped around proteins called histones, and they are organized within the nucleus of a cell. The packaging of DNA into chromosomes allows for efficient storage and organization of genetic information.
Genes are found on these cell structures that become visible when cells divide?
Genes are found on chromosomes, which are thread-like structures composed of DNA and proteins. They become visible when cells divide through a process called mitosis. During mitosis, chromosomes condense and are separated into two identical sets to be distributed to daughter cells.
When you divide you divide the?
The answer you get when you divide is called the quotient.It is the number on top of the whole division problem.
Do you supposed to divide if the answer is bigger than the number outside the box?
of course you do!
How did the Continental Divide get its name?
Also called the great divide
