I believe they are carbohydrates
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger and as volume increases, surface area to volume ratio decreases. The larger a cell, the less easily it can get rid of waste and it also has more trouble getting water, nutrients and gases in. That is why we do not see giant cells. Instead we see multiple cells in larger organisms.
One way to increase surface area is to flatten the cell. That is why red blood cells are flat discs, instead of spheres. Another way is elongation. That is why many bacteria are rod shaped, and why neurons are elongated. In fact, the human body relies on the same principle to adapt to climate. Long tall and lean folks with long arms and legs live in East Africa, because such shapes increase surface area to get rid of excess body heat to avoid heat strokes. Europeans and Asians adapted to cold climates, in contrast, have shorter arms and legs and rounder torsos to minimize surface area. to conserve body heat.
"The Calvin cycle, Calvin–Benson–Bassham (CBB) cycle, reductive pentose phosphate cycle or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms. ... This set of reactions is also called carbon fixation. The key enzyme of the cycle is called RuBisCO."
Answer:
D. cell growth
Explanation:
I learned this in the beginning of my biology class. Here is a piece from my notes.
Interphase
Interphase - the stage that will prep a cell for division
Is the stage that a cell will spend it's life in the most
G1 - immature cells will grow and mature cells will prepare to copy DNA
Growth
S - cells will copy DNA
Coping DNA
G2 - cells wait to start dividing
