70 results found

Search Results for: cholesterol

High-density lipoprotein cholesterol

Definition noun High-density lipoprotein carrying a cholesterol molecule at its center Supplement A lipoprotein is an... Read More

Cholesterol

Definition noun A sterol or a modified steroid that is synthesized by animal cells to become an essential component of... Read More

Bile

Have you ever wondered how the fats from butter, cheesy burgers, and pizzas get digested in your body? Or have you heard of... Read More

Fluid mosaic model

Fluid Mosaic Model Definition What is the fluid mosaic model? The fluid mosaic model is a three-dimensional representation... Read More

Monounsaturated fat

What is monounsaturated fat? Monounsaturated fats are healthy dietary fats. They are liquid at room temperature. Unlike... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Steroidogenesis

Definition noun, plural: steroidogeneses The biosynthesis of steroid hormones from cholesterol by various cells, such as... Read More

Phospholipid

What is a phospholipid? Phospholipids are a subgroup of lipids. Other major types of lipids are fatty acids, sphingolipids,... Read More

Amphipathic

Amphipathic Definition Amphipathic is a word used to describe a chemical compound containing both polar (water-soluble) and... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Cell membrane

Cell Membrane Definition Just like any non-living body possesses a plastic or paper packaging material that keeps the... Read More

Selectively-permeable membrane

Selectively Permeable Membrane Definition We can define selectively permeable membranes as those that are selectively... Read More

Endocytosis

Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More

Glycolysis

What is Glycolysis and Why is it Important? Glycolysis is a metabolic pathway by which the 6-carbon molecule of glucose is... Read More

Gallstone

Definition noun, plural: gallstones A calculus or stone composed of cholesterol and bile salts, forming within the... Read More

Fat

Definition noun plural: fats fats, fæts A term largely applied to storage lipids in animal tissues that are usually solid... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is part of or a region in the endoplasmic... Read More

Lipid

A biomolecule refers to any molecule that is produced by living organisms. As such, most of them are organic molecules. The... Read More

Endoplasmic reticulum

Endoplasmic Reticulum Definition The endoplasmic reticulum is a membrane-bound organelle in cells of eukaryotic cells... Read More

Serum

Serum Definition In biology, serum generally refers to the clear portion of any bodily fluid of animals and plants.... Read More

Steroid

Definition noun, plural: steroids Any of the group of fat-soluble organic compounds containing four rings arranged in a... Read More

Lipogenesis

Lipogenesis Definition Lipogenesis is the process of producing lipid or fat to store biochemical energy for later metabolic... Read More

Dehydration reaction

What is dehydration synthesis? A dehydration reaction is a form of biochemical reaction wherein a water molecule is lost or... Read More

Micromolecule

Micromolecules Definition How to define micromolecule? Micromolecules are relatively small molecules that are combined... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Estrogen

Definition noun, plural: estrogens A sex steroid hormone produced in large quantities chiefly in the ovaries in females;... Read More

Incomplete dominance

Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More

Organization

Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More

Balanced diet

What is a balanced diet? What is the definition of a balanced diet? A nutritionally balanced diet fulfills all nutritional... Read More

Anabolic steroid

Definition noun, plural: anabolic steroids Any of the synthetic steroid hormones (androgens) that promote muscle and bone... Read More

Animal cell

An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... Read More

Plant Cells vs. Animal Cells

Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More

Steroid hormone

Definition noun, plural: steroid hormones A type of steroid that acts as a hormone, and that which is exemplified by sex... Read More

Testosterone

Definition noun, plural: testosterones A steroid hormone with a chemical formula of C19H28O2, and is regarded as the primary... Read More

Adipose tissue

Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More

Biosynthesis

Biosynthesis Definition Biosynthesis refers to the production (synthesis) of a complex chemical compound from simpler... Read More

Organelle

The cell is regarded as the structural, functional, and biological unit of all organisms. It is a membrane-bound structure... Read More

Fatty acid

Definition noun plural: fatty acids'' fatty acid, ˈfætɪ ˈæsɪd Any of the group of a long chain of hydrocarbon... Read More

Aldosterone

Definition noun, plural: aldosterones A mineralocorticoid with a chemical formula of C21H28O5, and controls salt and water... Read More

Nicotinamide adenine dinucleotide phosphate

Definition noun A coenzyme made up of ribosylnicotinamide 5'-phosphate (nmn) coupled by pyrophosphatelinkage to the... Read More