The best answer is C.
Plasma membranes are mainy made up of lipids and proteins. The lipids are glycerophospholipid, molecules composed of glycerol, a phosphate group and two fatty acid chains. Glycerol is a three-carbon molecule that functions as a backbone of these membrane lipids.
Within each glycerophospholipid, fatty acids are attached to the first and second carbon, while the phophate group is attached to the third carbon of the glycerol backbone.
Proteins such as glycoprotein are attched to the glycerophospholipids in the cell membrane. They are used for cell recognition and also act as receptors and antigens.
Answer:
Use a measuring spoon to scoop out 1/8 teaspoon of baking soda, and fill your measuring cup with 300 milliliters of water. Mix the baking soda into the water to create your bicarbonate solution. When the baking soda dissolves in the water, it releases carbon dioxide. This will be used by the spinach for photosynthesis.
Explanation:
The Answer is D.........................
Answer:
A(the first one)
Explanation:
Homeostasis maintains the constant internal conditions in an organism. It is important because cells function best with a limited range of conditions. ... All living things have body parts with different functions that help them survive.