Cytokinesis is the part of the cell division process during which the cytoplasm of a single eukaryotic cell divides into two daughter cells. Cytokinesis can also be referred to as Cytoplasmic division or cell cleavage. In animal cells this is achieved by constriction of the plasma membrane, whereas in higher plants, it is accomplished through … Read more
What Are Homologous Structures/Organs? Many species have similar traits because they are descendants of a single common ancestor. These species developed from a single source and are related to a certain degree despite their current differences. The traits they share are referred to homologous structures. A homologous structure is an organ or body part that … Read more
What Is Stepper Motor? A stepper motor, also referred to as step motor or step ping motor, it is a brushless DC electric motor that divides a full rotation into a number of equal steps. Like all other motors, steppers also have a stator and a rotor, but unlike a normal DC motor the stator … Read more
What Is Caryopsis? The caryopsis is popularly known as a grain, is a specialized type of dry, one-seeded fruit (achene) characteristic of grasses, in which the ovary wall is united with the seed coat, making it difficult to separate the two except by specialized milling process. All the cereal grains except buckwheat have caryopses. What … Read more
Immunoglobulin M (IgM), is one of the several forms of antibodies which is found mainly in the blood and lymph fluid, is the first antibody to be made by the body to fight new infections. . IgM is a Pentameric molecule comprising 5 Y-shaped units together with a polypeptide chain with ten antigen biding sites. … Read more
Adrenal glands are endocrine glands located above the kidneys. Each gland has an outer cortex which produces steroid hormones and an inner medulla. Adrenal cortex produces three main types of steroid hormones, mineralocorticoids, glucocorticoids and adrogens. The adrenal medulla is at the center of each adrenal gland, and is surrounded by the adrenal cortex. It … Read more
What Is Diffusion? Diffusion is the process whereby the molecules move as a result of their kinetic energy. Diffusion occurs in liquids and gases because their molecules move randomly. The molecules move from a region of higher concentration to a region of lower concentration, down the concentration gradient, until the concentration equalizes throughout the medium. … Read more
What Is Schottky Defect? A Schottky defect is a type of point defect in a crystal lattice named after a German physicist Walter H. Schottky who discovered it. In ionic crystals, this type of point defect forms when oppositely charged ions leave their corresponding lattice sites, creating a pair of vacancy defects. These vacancies are … Read more
Monocot & Dicot Seeds Flowering plants generally referred to as angiosperms, fall into two classes, based on the number of cotyledons or seed leaves, within their seeds. For monocotyledons, also referred to as monocots, seeds contain only one cotyledon and when a monocot seed germinates, it produces a single. It is usually long and narrow, … Read more
The intestines are a long, continuous tube running from the stomach to the anus. Most absorption of nutrients and water happen in the intestines. The intestines include the small intestine, large intestine and rectum. What Is Small Intestine? The small intestine also referred to as small bowel, is an organ in the gastrointestinal tract where … Read more