Definition Animal cells are the basic unit of life in organisms of the kingdom Animalia. They are eukaryotic cells, meaning that they have a true …
Read moreAnimal cell: Definition, Structure, and Function with Diagram
The ribosomes are small, dense, rounded, and granular particles of the ribonucleoprotein. They occur either freely in the matrix of mitochondria, chloroplast and cytoplasm (i.e., …
The chromosomes are the nuclear components of a special organization, individuality, and function. They are capable of self-reproduction and play a vital role in heredity, …
The nucleus is the heart of the cell. It is here that almost all of the cell’s DNA is confined, replicated, and transcribed. The nucleus, …
Read moreThe Cell Nucleus: Definition, Structure, and Function.
Chloroplasts are organelles specializing in the conversion of radiant energy to chemical energy. The chloroplast is involved in photosynthesis and consequently, cells that contain chloroplasts …
Mitochondria also are known as the powerhouse of the cell. It is filamentous or granular cytoplasmic organelles of all aerobic cells of higher animals and …
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Glyoxysomes are found to occur in the cells of yeast, Neurospora, and oil-rich seeds of many higher plants. They resemble peroxisomes in morphological details, except …
Peroxisomes occur in many animal cells and in a wide range of plants. They are present in all photosynthetic cells of higher plants in etiolated …
The lysosomes are tiny membrane-bound vesicles involved in intracellular digestion. They contain a variety of hydrolytic enzymes that remain active under acidic conditions. The lysosomal …
Read moreLysosomes: Definition, Structure Tyes, and Function
The endoplasmic reticulum (ER) is a network of membrane-enclosed tubules and sacs (cisternae) that extends from the nuclear membrane throughout the cytoplasm. The entire endoplasmic …