Low-density lipoproteins or LDLs are substances made up of fat and protein. Cells acquire LDLs through receptor-mediated endocytosis, wherein specific molecules are ingested into the cell.
By the process of respiration. In this process, glucose is oxidised to carbon dioxide and water (aerobic) and ATP is produced. (ATP is the energy currency of cells)
Most of them do it exactly the same your own cells do it - oxidizing hydrogen in mitochondria. A few use fermentation (sugar to lactic acid).
All living organisms acquire nutrients
Scientists use the Scientific Method to acquire new knowledge by experimenting, observing, and recording. It is the basic order of gaining new information.
Acquire and exploit critical information
The LDLs are overloaded with cholesterol
Low-Density Lipoproteins (LDLs) are formed when cholesterol combines with proteins, phospholipids, and triglycerides. Specifically, apolipoprotein B-100 (ApoB-100) is the primary protein component that facilitates the transport of cholesterol and triglycerides in the bloodstream. This combination allows LDLs to deliver cholesterol to cells throughout the body, playing a crucial role in lipid metabolism.
LDLs
LDLs ( low density lipoproteins) that's why the cholesterol in combination with LDLs is called " bad cholesterol".
A decrease in the ability of LDL receptors to bind to LDLs leads to an accumulation of low-density lipoprotein (LDL) particles in the bloodstream. This can result in higher levels of cholesterol in the blood, increasing the risk of atherosclerosis and cardiovascular diseases. Additionally, impaired uptake of LDLs by cells can disrupt lipid homeostasis and contribute to metabolic disorders. Overall, reduced LDL receptor function is associated with adverse health outcomes related to cholesterol metabolism.
High-density lipoproteins (HDL) are composed mainly of proteins, with only small amounts of cholesterol. HDLs are often referred to as "good cholesterol" because they help remove cholesterol from artery walls and transport it to the liver for elimination from the body. Higher HDL levels actually protect against coronary heart disease.Low-density lipoproteins (LDL) are composed mainly of cholesterol and have very little protein. They are often referred to as "bad cholesterol" because they are primarily responsible for depositing cholesterol within arteries. High levels of LDLs are associated with an increased risk for coronary heart disease.thanks x
Cholesterol is transported around the body by lipoproteins, which is fat attached to protein. There are two types - HDLs (high density lipoproteins) and LDLs (low density lipoproteins)LDLs carry cholesterol from the liver to body cells. Too much can block arteries. So this is "bad cholesterol"HDLs carry cholesterol that isn't needed from body cells back to the liver for removal from the body. So these are "good cholesterol"Hope I helped :)
Cholesterol is a big molecule, C27H46O. However, it is a single molecule, and thus a monomer. In cells cholesterol is normally embedded in cell membrane and makes hydrogen bonds with surrounding molecules. In the blood, it is also not found alone, but packaged with lipids (triglycerides) and lipoproteins. Thus when looking at cholesterol levels in the blood, people often refer to HDLs and LDLs. The proteins in HDLs and LDLs are also discrete units with a specific structure, but they are considered to be polymers of amino acids.
LDLs can be a problem because they are known as "bad cholesterol" and high levels of LDL cholesterol in the blood can lead to plaque build-up in arteries, increasing the risk of heart disease and stroke. It is important to manage LDL levels through diet, exercise, and sometimes medication to reduce the risk of cardiovascular complications.
When they burn through oxygen faster than their cells can get it, ie sprinting
By the process of respiration. In this process, glucose is oxidised to carbon dioxide and water (aerobic) and ATP is produced. (ATP is the energy currency of cells)
Turgid walls help hold the plant upright by internal water pressure. A adaption that allowed plants to acquire the land as a niche.