Here are the recommended number of daily or weekly servings of each food type, based on eating a total of 2,000 calories per day. Your calorie needs may be different, depending on your age, activity level and whether you are trying to lose, gain or maintain your weight.
â¢ The inner membrane also has folds called cristae to increase the surface area. â¢ The intermembrane space is a region between the outer and inner membranes. Mitochondria are organelles that carry out cellular respiraTon. Cellular respiraÂ±on converts chemical energy in foods to chemical energy called AÂ±P (adenosine
However, these two functions are performed in separate areas of the ER: the rough ER and the smooth ER, respectively. The hollow portion of the ER tubules is called the lumen or cisternal space. The membrane of the ER, which is a phospholipid bilayer embedded with proteins, is continuous with the nuclear envelope.