The Biosphere, is the layer of the planet Earth were life exists.
<h2>Kinase cascade </h2>
Explanation:
Normally, PK2 activates PK1
- PK1 and PK2 normally work sequentially in an intracellular signaling pathway
- If PK1 is permanently activated, a response is seen independently of whether or not PK2 is present
- If PK1 activated PK2, no response should be seen if PK1 were activated in the absence of PK2
- PK2 normally needs to activate PK1 for the cells to respond to the signal
- When PK2 is permanently activated in the absence of PK1, PK1 is not there to relay the signal
Eubacteria are considered prokaryotic
all prokaryotic cells are unicellular, has a cell wall and lack both a nucleus and membrane-bound organelles
3 is enzymes, 7 is c, 6 is either c or d, 5 is B, 4 is c
In the Kreb cycle, energy is needed so D is wrong. The first reactant and last product are the same which causes it to be cyclic so the answer is C
