________ and G2- During these stages, the cell performs metabolic reactions and produces organelles, proteins, and enzymes.
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Catalytic
________ (enzyme- linked) receptors have an enzymatic active site on the cytoplasmic side of the membrane.
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blood glucose levels
Your ________ are regulated by insulin and glucagon, two hormones released from your pancreas.
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Cancer
________ occurs when normal cells start behaving and growing very abnormally and spread to other parts of the body.
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asexual reproduction
The impetus to divide occurs because an organism needs to grow, a tissue needs repair, or ________ must take place.
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G
________ stands for "gap, "but we can also associate it with "growth ..
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prophase
During ________, the nuclear envelope disappears and chromosomes condense.
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cellular division
Mitosis, or ________, occurs in four stages:
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DNA
When damaged ________ is found, checkpoints are activated and cell cycle progression stops.
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single chromosome
During interphase, every ________ in the nucleus is duplicated.
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G protein
A(n) ________- linked receptor does not act as an enzyme, but instead will bind a different version of a(n) ________ (often GTP or GDP) on the intracellular side when a ligand is bound extracellularly.
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centromere
The chromatids are held together by a structure called the ________.
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telophase
The process of cytokinesis, which occurs during ________, ends mitosis, as the cytoplasm and plasma membranes pinch to form two distinct, identical daughter cells.
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genes
Mutated ________ that induce cancer are called oncogenes.
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Taxis
________ is the movement of an organism in response to a stimulus and can be positive (toward the stimulus) or negative (away from the stimulus)
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CDKs
________ and cyclins were first studied in yeast, unicellular eukaryotic fungi.
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end product
The ________ inhibits the process from beginning, thus shutting down the pathway.
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Signal transduction
________ is the process by which an external signal is transmitted to the inside of a cell.
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Tumour suppressor genes
________ produce proteins that prevent the conversion of normal cells into cancer cells.
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Signal transduction cascades
________ are helpful to amplify a signal.
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Interphase
________ is the time span from one cell division to another.
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receptor
Each ________ binds a particular molecule in a highly specific way.
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DNA damage
If the ________ is so extensive that it can not be repaired, the cell can undergo apoptosis, or programmed cell death.
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ion channels
Ligand- gated ________ in the plasma membrane open or close a(n) ________ upon binding a particular ligand.
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positive feedback pathway
A(n) ________ also involves an end product playing a role, but instead of inhibiting the pathway, it further stimulates it.
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Plasma membrane receptors
________ form an important class of integral membrane proteins that transmit signals from the extracellular space into the cytoplasm.
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cell cycle
The ________ is divided into two periods: interphase and mitosis.
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Telophase
________ terminates mitosis, and the two new nuclei form.
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Taxes
________ are innate behavioral responses, or instincts.
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The cell cycle is divided into two periods
interphase and mitosis
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The Three Stages of Interphase Interphase can be divided into three stages
G1, S, G2
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G1 and G2
During these stages, the cell performs metabolic reactions and produces organelles, proteins, and enzymes
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