What could happen to the target cells in an animal that lack receptors for local regulators group of answer choices?
What is most likely to happen to an animal's target cells that lack receptors for local regulators? They might not be able to multiply in response to growth factors from nearby cells.
What would be true for the signaling system in an animal cell that lacks the ability to make GTP?
11) Which of the following is true for the signaling system in an animal cell that lacks the ability to produce GTP? It would not be able to activate and inactivate the G protein on the cytoplasmic side of the plasma membrane.
Which of the following is a type of local signaling in which a cell secretes a signal molecule that affects neighboring cells?
In contrast to hormones, some signaling molecules act locally to affect the behavior of nearby cells. In paracrine signaling, a molecule released by one cell acts on neighboring target cells. An example is provided by the action of neurotransmitters in carrying signals between nerve cells at a synapse.
Would be inhibited by a drug that specifically blocks the addition of phosphate groups to proteins?
Which of the following would be inhibited by a drug that specifically blocks the addition of phosphate groups to proteins? Receptor tyrosine kinase activity.
In what way would the lack of receptors for local paracrine signal molecules affect animal cells?
Which of the following is most likely fate of animal cells that lack receptors for local paracrine signal molecules? They would be unable to grow and divide in response to growth factors from nearby cells.
What does a target cell require to respond to an extracellular signal molecule?
What does a target cell require to respond to an extracellular signal molecule? Each type of extracellular signal molecule induces a similar response in different target cells. A target cell can respond quickly to an extracellular signal if: the response does not require new gene transcription or new protein synthesis.
Which of the following is the most likely fate of animal cells that lack receptors for local paracrine signal molecules?
Which of the following is most likely fate of animal cells that lack receptors for local paracrine signal molecules? They would be unable to grow and divide in response to growth factors from nearby cells.
How do plant and animal hormones travel to target cells?
At the target cell, the hormones are released from the carrier protein and diffuse across the lipid bilayer of the plasma membrane of cells. The steroid hormones pass through the plasma membrane of a target cell and adhere to intracellular receptors residing in the cytoplasm or in the nucleus.
What would happen if an animal cell lost the ability to produce GTP?
If an animal cell suddenly lost the ability to produce GTP, what might happen to its signaling system? It would be able to carry out reception and transduction but would not be able to respond to a signal.
In what way would the lack of receptors for local paracrine signal molecules affect animal cells quizlet?
Which of the following is most likely fate of animal cells that lack receptors for local paracrine signal molecules? They would be unable to grow and divide in response to growth factors from nearby cells.
How can plants and animals affect neighboring cells directly?
Signaling through cell-cell contact Gap junctions in animals and plasmodesmata in plants are tiny channels that directly connect neighboring cells. These water-filled channels allow small signaling molecules, called intracellular mediators, to diffuse between the two cells.
What will happen if cells fails to communicate with each other?
But even so, cell communication can break down. The result is uncontrolled cell growth, often leading to cancer. Cancer can occur in many ways, but it always requires multiple signaling breakdowns. Often, cancer begins when a cell gains the ability to grow and divide even in the absence of a signal.
Why do some normal cells fail to respond to a chemical signal?
Why do some normal cells fail to respond to a chemical signal? ANSWER: –Some cells are completely without receptors. -Signal chemicals often break down before reaching a distant target.
What can cause downregulation of a target cell?
signals from antagonistic hormone products. Down-regulation of a target cell can occur in response to A. prolonged decrease in the level of a hormone.
Why is the consequence of epinephrine signaling so different for cardiac cells and hepatocytes?
Why is the consequence of epinephrine so different for heart cells and liver cells? The epinephrine receptors on the surface of their target cells are different. The epinephrine receptors are more abundant on the surface of heart cells.
What is a cell not able to do if it does not have receptor proteins?
What is a cell not able to do if it does not have receptor proteins? bind to signal proteins from other parts of the body. What do Eukaryotic cells use to move their organelles? You just studied 75 terms!
Which of the following statements about the response of cells to signals in the surrounding environment is true?
Which of the following statements about the response of cells to signals in the surrounding environment is true? Cells are usually exposed to many signals, but only respond to some of them.
What happens when cells do not respond to the signals that normally regulate their growth?
Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor .
What happens when a cell does not receive any signal molecules?
The result is uncontrolled cell growth, often leading to cancer. Cancer can occur in many ways, but it always requires multiple signaling breakdowns. Often, cancer begins when a cell gains the ability to grow and divide even in the absence of a signal.
What happens if cell signaling fails?
But even so, cell communication can break down. The result is uncontrolled cell growth, often leading to cancer. Cancer can occur in many ways, but it always requires multiple signaling breakdowns. Often, cancer begins when a cell gains the ability to grow and divide even in the absence of a signal.
What happens if there is downregulation of receptors?
An example of downregulation is the cellular decrease in the expression of a specific receptor in response to its increased activation by a molecule, such as a hormone or neurotransmitter, which reduces the cell's sensitivity to the molecule.
Do target cells require receptors?
Hormones, like keys, need to have a compatible receptor, or lock, in order to work. In the same way that a skeleton key cannot open a car door, a male sex hormone cannot produce masculine features if the target cell does not have receptors, or locks, that can read the hormone, or accept the key.
Why is the consequence of epinephrine signaling so different for cardiac cells and hepatocytes quizlet?
Why is the consequence of epinephrine so different for heart cells and liver cells? The epinephrine receptors on the surface of their target cells are different. The epinephrine receptors are more abundant on the surface of heart cells.
How does epinephrine affect the liver cells?
In the liver, epinephrine stimulates the breakdown of glycogen to glucose, resulting in an increase in glucose levels in the blood. It also acts to increase the level of circulating free fatty acids.
What happens when receptors do not work properly?
If receptors are not working properly, the external stimulus won't be able to stimulate receptors and no nerve impulse is generated. The result is that the body would not respond to changes in the surroundings.
Why do we need receptors?
Receptors are especially important in preventing disease. Cells often use receptors to show the immune cells that they are functioning properly. Inside the cell, cellular products are put on receptors, and the receptors are then moved to the cell surface, where they show their different products.
What would happen if cell could not communicate?
But even so, cell communication can break down. The result is uncontrolled cell growth, often leading to cancer. Cancer can occur in many ways, but it always requires multiple signaling breakdowns. Often, cancer begins when a cell gains the ability to grow and divide even in the absence of a signal.
What happens when cell signaling goes wrong?
The result is uncontrolled cell growth, often leading to cancer. Cancer can occur in many ways, but it always requires multiple signaling breakdowns. Often, cancer begins when a cell gains the ability to grow and divide even in the absence of a signal.
What happens if the cell cycle is disrupted?
Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor .
What is local Signalling?
Signals that act locally between cells that are close together are called paracrine signals. Paracrine signals move by diffusion through the extracellular matrix. These types of signals usually elicit quick responses that last only a short amount of time.