#Question id: 5770
#Unit 8. Inheritance Biology
Fragile X syndrome is caused by
#Question id: 1822
#Unit 4. Cell Communication and Cell Signaling
Binding of platelet activating factor (PAF) to its receptor on the neutrophil:
#Question id: 1066
#Unit 4. Cell Communication and Cell Signaling
Carriers
#Question id: 10154
#Unit 6. System Physiology – Plant
The C2 oxidative photosynthetic carbon cycle on chloroplast metabolism, the functioning of the C2 oxidative photosynthetic cycle in three compartments: chloroplasts, peroxisomes and mitochondria such as;
a.) In the carbon cycle; the transfer two molecules of glycolate and recovers one molecule of glycerate and releases one molecule of CO2
b.) In the nitrogen cycle, one molecule of glutamate and recover one molecule of NH4 +
c.) In the oxygen cycle; contributes to the removal of H2O2 formed in the oxidation of glycolate by O2
i) Takes place in Peroxisome
ii) In Mitochondria
iii) In the Chloroplasts
Which of the following combination from the above statements is TRUE?
#Question id: 1366
#Unit 4. Cell Communication and Cell Signaling
Mechano-transduction is the reciprocal interconversion of a mechanical force—or stimulus—and biochemical processes. These interconversions underlie a variety of biological activities, such as signaling, regulated gene expression, cell proliferation, cell migration, and interactions among cells and between cells and the ECM. Mechano-transduction in the context of cell-cell and cell-ECM interactions usually involves a cell-surface CAM or adhesion receptor that transmits mechanical force or biochemical information across the plasma membrane and one or more intracellular or extracellular mechano-sensors that respond to the mechanical stimulus by changing shape and activity. In Hypothetical model of the partial unfolding of a fibronectin type III, when that protein is subjected to mechanical force, following observations are-
A. Mechanical force generated within the cell by actin movement and transduce via multiple integrin adhesion receptors bound to the extracellular dimeric fibronectin can partially unfold the fibronectin.
B. The unfolding is thought to expose a putative, previously hidden binding site on fibronectin that has the potential to form β sheets with other fibronectin molecules, recruiting them to form fibronectin fibrils, and thus helping assemble the ECM.
According to observations which of the following protein act as mechano-sensor and mechano-transducer respectively?