Answer:
There are two basic types of cells, prokaryotic cells and eukaryotic cells. The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus. The nucleus is where cells store their DNA, which is the genetic material. The nucleus is surrounded by a membrane.
Answer:
channels and chain-like structures
Explanation:
The plasma membrane contains channels that favor the transport of materials from both sides, i.e., from the intracellular medium to the extracellular environment. Membrane channels are a class of proteins that enable the passive transport of ions and chemical compounds by using the electrochemical gradient in both sides of the membrane. For example, channel proteins in the cell membrane known as aquaporins enable the transport of water across the cell membrane much more rapidly than by diffusion across this barrier.
i think it’s the last one on question number one, and the first one on question two.
1) A 2) B
Explanation:
Enzymes are catalyst, meaning that they could be use in several reaction and they speed up any chemical reaction rate. So knowing this, when the animal have more enzymes it will react more quickly with the food, making it digest the food more quickly.
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A form of fat circulating in the blood that can accumulate on the inner walls of arteries and restrict blood flow is the cholesterol. It comprises about 5 percent of the total fat in the body. Cholesterol build up in the arteries causes for the channels to narrow affecting the flow of blood in these channels. This substance is not at all bad for the body as it is needed to build cells in the body. However, too much of this substance would cause health problems like cardiovascular diseases, atherosclerosis, metabolic syndrome and the like. Cholesterol would come from two sources. One would be from the liver which makes all we need. The other would be from the food we intake especially from the meat.