Plants and Animal Cells

454 Words2 Pages
Cells are the structural and functional units of all living organisms. Each cell is an amazing world unto itself: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Even more amazing is that each cell stores its own set of instructions for carrying out each of these activities. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, or have many cells. Cells may have different qualities according to the organisms that they form and according to tissue types of the species. There are some similarities and differences between plant cell and animal cell in terms of their shapes, the organelles that they have, the features of the organelles that are present in both of them and carbonhydrate storage styles. Animal cells do not have chloroplasts (essential for photosynthesis), plastids, and cell wall. When put in hypotonic atmosphere, animal cell absorb water. Then because of the absence of cell wall, water explodes the cell. Animal cells have cytoplasm, endoplasmic reticulum, ribosomes, mitochondria, centrosome, golgi apparatus, cell membrane, microtubules, lysosomes, nucleus and nucleolus. An animal cell also have vacuoles, but vacuoles in animal cell are small in size and big in number. In an animal cell, carbonhydrate (of which building structure is glucose) storage material is glycogen. Animal cells have round and irregular shapes. Plant cells have chloroplasts because they make their own food. Unlike animal cells, they also have plastids and cell wall. As they have cell wall, they do not explode in hypotonic atmosphere. As well as animal cells, plant cells have cytoplasm, endoplasmic reticulum, ribosomes, mitochondria, golgi apparatus, cell membrane, microtubules, nucleus, nucleolus and vacuoles. The number and

More about Plants and Animal Cells

Open Document