Most important and abundant one are the phospholipids - amphiphatic molecules with an hydrophilic head and a hydrophobic hydrocarbon tails. They compose the membrane bilayer. Also important are the membrane proteins, which can be periheric and internal and can serve as channels, receptors, pumps etc.
Depending on the cell type the membrane can also contain cholesterol (in animal cells, enhances the membrane stability) or hopanes(in prokaryotes, same function as cholesterol) or ether-phospholipids with branched hydroharbon tails(in archaea, make the membranes more stable and resistant to severe conditions, as archaeas are extremophiles)
Genetically, even though they don't look alike or have the same function, they come from the same structure of the last common ancestor.
what is the climate in the Serengeti like?
The average temperature in Serengeti is fairly consistent throughout the year. The region will see highs of about 27°C (80°F), and lows of about 14°C (57°F).
The climate of the Serengeti National Park is subtropical, with a dry and relatively cool season from May to August, a warmer and still quite dry season in September and October, and a rainy and quite hot season from November to April.
Answer:
¿Por qué es importante la mitosis para los seres vivos?
La división celular por mitosis es decisiva para el desarrollo de los organismos y su reproducción; aunado a ello, es necesario que cada nueva célula sea genéticamente idéntica de la que proviene
Explanation:
Answer:
When elongated, tube –shaped cells from the lining of the intestine are treated with a certain chemical in a dish, the cells sag and becomes round blobs. the internal structures disrupted by this chemical are probably microtubules
