A portion of the food is used by the plant itself in cellular respiration and the rest is consumed by animals or by decomposers.
The atom with the greatest capacity to gain electron is OXYGEN.
Oxygen has atomic number 8 and it has six electrons in its outermost shell. In order to attain octet structure, oxygen prefer to gain electron from other elements which have electrons which they can donate.<span />
Answer:
proteins called expansins
Explanation:
The complete question is :
<em>According to the acid-growth hypothesis, auxin causes increased acidity in cell walls, which then activates ____ that disrupt(s) bonds between cellulose microfibrils, allowing cell expansion.</em>
<em>a. a membrane potential </em>
<em>b. an mRNA </em>
<em>c. AUX1 transporters </em>
<em>d. K+ ions </em>
<em>e. proteins called expansins</em>
<em></em>
- The acid growth hypothesis explains the growth of cells and organs in the plants.
- According to this hypothesis, the plant hormone auxin causes induction of the H+ proton extrusion into the apoplast which leads to the activation of expansin which a pH-sensitive protein.
- Expansin is responsible for wall stretching and relaxation and causes hydrolysis of hydrogen bonds and thus helps in cell expansion.
It causes muscular irritability which can lead to cramps and twitching of facial muscles.
Answer:
C after fossil Y there were few new type of organisms