The Earth is closest to the Sun, or at the Perihelion, about two weeks after the December Solstice, when it is winter in the Northern Hemisphere. Conversely, the Earth is farthest away from the Sun, at the Aphelion point, two weeks after the June Solstice, when the Northern Hemisphere is enjoying warm summer months.
Mitochondria are essential components of nearly all cells in the body. These organelles are the powerhouses for cells, providing energy to carry out biochemical reactions and other cellular processes.Mitochondria make energy for cells from the chemical energy stored in the food we eat.itochondria are essential components of nearly all cells in the body. These organelles are the powerhouses for cells, providing energy to carry out biochemical reactions and other cellular processes.
Report Abuse. Every cell has a mitochondria, because it is here that cell releases energy from food. The energy is needed to help it grow and move. Mitochondria are sometimes called the 'powerhouses' of the cell.The energy is released by combining food with oxygen, in a process called respiration.The more active a cell, the more mitochondria it has. So the mitochondria is not a cell, but part of a cell.Source(s): My fourth form Biology teacher.eport Abuse. Every cell has a mitochondria, because it is here that cell releases energy from food. The energy is needed to help it grow and move. Mitochondria are sometimes called the 'powerhouses' of the cell.