THE ______ PATHWAY RESCUES CATENIN FROM DEGRADATION. A. BMP4 B. FRIZZLED C. CATE
ID: 254488 • Letter: T
Question
THE ______ PATHWAY RESCUES CATENIN FROM DEGRADATION.
A. BMP4
B. FRIZZLED
C. CATENIN
D. Wnt
THE EXTRACELLULAR ENVIRONMENT THAT CONTROLS TISSUE SIZE AND REGULATION OF TISSUE CELL TYPES IS REFFERED TO AS.
A. LOCAL MEDIATION OF GROWTH FACTORS
B. LOCAL MEDIATION OF TIMPS
C. MATRIX MODIFICATION OF TISSUE HOMEOSTASIS
D. THE STEM CELL NICHE
E. NONE OF THE ABOVE
IN WOUND HEALING AND REGENERATION, THE AFFECTED TISSUE PRODUCES GROWTH FACTORS.
A. INCREASE THE RATE OF CELL DIVISION OF INDIVIDUAL CELLS
B. SHORTEN G1 AND G2 OF THE CELL CYCLE
C. RECRUIT QUIESCENT CELLS TO REJOIN THE CELL CYCLE
D. STOP CELLS FROM DIVIDING
Explanation / Answer
1.THE ______ PATHWAY RESCUES CATENIN FROM DEGRADATION.
Ans: a. BMP4
Where the rest of the pathways are involved in the degradation of catenin.
2.THE EXTRACELLULAR ENVIRONMENT THAT CONTROLS TISSUE SIZE AND REGULATION OF TISSUE CELL TYPES IS REFFERED TO AS.
Ans:c
A: Local mediators are released by many cell types and diffuse through the extracellular fluid to act on cells within the same local area.
B: Increased expression of TIMP-2 could contribute to cardiac wound healing by directly stimulating collagen synthesis within the microenvironment of the injured heart.
C: matrix modification of intact mammalian tissues have been successfully used in a variety of tissue engineering/regenerative medicine applications.
D: Niches are local tissue microenvironments that maintain and regulate stem cells. Stem cells are emerging as one of the fundamental underpinnings of tissue biology. They allow blood, bone, gametes, epithelia, nervous system, muscle, and myriad other tissues to be replenished by fresh cells throughout life.
3.IN WOUND HEALING AND REGENERATION, THE AFFECTED TISSUE PRODUCES GROWTH FACTORS
Ans: A.
increase the rate of cell division of individual cells.
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