Definition of Epithelial Tissue Epithelial tissue is a kind of animal tissue which is composed of highly aggregated polyhedral cells which are tightly attached to each other as cellular sheets which line the inside of hollow organs and cover the body surface. Cells in epithelial tissue or epithelium (plural: epithelium) are organized in continuous sheets, in … Read more
Definition of Enzymes Enzymes are biological molecules that operate as biological catalysts in living systems, speeding up the rate of chemical reactions. Enzymes are proteins that act on compounds known as substrates to create other molecules known as products. Enzymes are required for the majority of metabolic processes in biological systems to occur at rates … Read more
Arteries and Veins Arteries and veins are two of the most common types of blood vessels in the body, through which blood flows. The arteries transport oxygenated blood out from the heart, whereas the veins transport deoxygenated blood from the tissue capillaries back to the heart. Differences between Arteries and Veins Arteries Vs Veins [ninja_tables … Read more
Differences Between DNA and RNA (DNA vs RNA) [ninja_tables id=”5396″] Differences Between DNA and RNA Citations https://www.thoughtco.com/dna-versus-rna-608191 https://en.wikibooks.org/wiki/Structural_Biochemistry/Nucleic_Acid/Difference_between_DNA_and_RNA https://biologywise.com/difference-between-dna-rna Related Posts
Definition of Centrifugal Force Centrifugal force is a fictional outward force experienced by an item travelling in a circular direction away from the center of rotation. Centrifugal force is directed away from the axis of rotation and parallel to the axis of rotation. The magnitude and dimensions of centrifugal force are the same as those … Read more
What is Asexual Reproduction? Asexual reproduction is a type of reproduction which takes place without the fusing of gametes and without the switch over of genetic information, resulting in offspring that are genetically identical to their parents. Asexual reproduction in living creatures is distinguished by the lack of male as well as female gametes, and … Read more
Differences between Invertebrates and Vertebrates Invertebrates (non-chordates) and vertebrates (living things) (Chordates) make up the majority of the animal kingdom. Those without a vertebral column or backbone are called invertebrates, while those with one are called vertebrates. Characteristics Invertebrates (Non-Chordates) Vertebrates (Chordates) Radial Bi-radial, or not present Bilateral Symmetry Metamerism True or pseudo metamerism or not present True … Read more
Heterotrophs Definition Heterotrophs are species that do not manufacture their own food and rely on the food and energy of other organisms. Heterotrophs are organisms that are different from autotrophs in that they prepare their own food as well as feed heterotrophs. The term heterotroph is made up of two words: “hetero” means “others,” and … Read more
What is Active Immunity ? Active immunity is the straight response of the body towards pathogens. These pathogens are infectious microorganisms. They are also foreign substances that develop following an infection or vaccination. What is Passive Immunity ? Passive immunity is the transfer of active humoral immunity of ready-made antibodies. It is provided when someone … Read more
Definition of Phytoplankton (What are Phytoplankton?) A type of free-floating microalgae which drifts with the stream of water as well as is a significant component of ocean, sea, as well as freshwater ecosystems is a Phytoplankton. The name phytoplankton is derived from two Greek words: phyto, which means plants, as well as plankton, which means … Read more