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Test anxiety is a combination of physiological over-arousal, tension and somatic symptoms, along with worry, dread, fear of failure, and catastrophizing, that occur before or during test situations. [1] It is a psychological condition in which people experience extreme stress, anxiety, and discomfort during and/or before taking a test.
The unfolded protein response (UPR) is a cellular stress response related to the endoplasmic reticulum (ER) stress. [1] It has been found to be conserved between mammalian species, [2] as well as yeast [1] [3] and worm organisms. The UPR is activated in response to an accumulation of unfolded or misfolded proteins in the lumen of the ...
Schematic overview of the classes of stresses in plants Neurohormonal response to stress. Stress, whether physiological, biological or psychological, is an organism's response to a stressor such as an environmental condition. [1] When stressed by stimuli that alter an organism's environment, multiple systems respond across the body. [2]
Cellular stress response is the wide range of molecular changes that cells undergo in response to environmental stressors, including extremes of temperature, exposure to toxins, and mechanical damage. Cellular stress responses can also be caused by some viral infections. [1]
This idea has preliminary evidence showing that repetitive mild stress exposure may have anti-aging effects in laboratory models. [ 35 ] [ 36 ] Some mild stresses used for such studies on the application of hormesis in aging research and interventions are heat shock , irradiation, prooxidants , hypergravity , and food restriction.
Bioenergetics is a field in biochemistry and cell biology that concerns energy flow through living systems. [1] This is an active area of biological research that includes the study of the transformation of energy in living organisms and the study of thousands of different cellular processes such as cellular respiration and the many other metabolic and enzymatic processes that lead to ...
Cortisol is a steroid hormone in the glucocorticoid class of hormones and a stress hormone.When used as medication, it is known as hydrocortisone.. It is produced in many animals, mainly by the zona fasciculata of the adrenal cortex in an adrenal gland. [1]
In Arabidopsis thaliana, the net flux of miRNA genes has been predicted to be between 1.2 and 3.3 genes per million years. [127] This makes them a valuable phylogenetic marker, and they are being looked upon as a possible solution to outstanding phylogenetic problems such as the relationships of arthropods . [ 128 ]