Which of the following is not a connective tissue?
Muscular tissue consists of muscle fibres, it is not a connective tissue.
Which is not tissue?
Answer: , multicellular protists, ancient eukaryotes, do not have cells organized into tissues.
What is tissue explain it?
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. There are four main tissue types in the body: epithelial, connective, muscle, and nervous.
What is tissue with diagram?
A tissue is a group of cells, in close proximity, organized to perform one or more specific functions. There are four basic tissue types defined by their morphology and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
What is tissue Short answer?
A group of similar or dissimilar cells which performs essentially the same function and has a common origin is called a tissue.
What is tissue level?
The tissue level of organization consists of a group of cells that work together to accomplish one or more specific functions. There are only four distinct types of tissue in an adult human. The organ level of organization is when two or more tissues work together for a specific function.
What is tissue class 9 definition?
Group of cells which are similar in structure that work together to achieve a particular function forms a tissue. On the other hand, complex tissues are made up of more than one type of cells. Parenchyma, collenchyma and sclerenchyma are the examples of simple plant tissue whereas xylem and phloem are complex tissue.
Why is tissue class 9 important?
Tissues are important because of the following reasons: (i) They divide the work labour in multicellular organisms. (ii) They get organised to form different organs and organ systems. (iii) They provide a higher efficiency to multicellular organisms by improving their organisation.
What is differentiation Class 9?
The process in which the meristematic tissues take a permanent shape, size and function is known as differentiation. This implies the cells of meristematic tissues differentiate to form different types of permanent tissues.
What is Totipotency of cell?
A totipotent cell is a single cell that can give rise to a new organism, given appropriate maternal support (most stringent definition) A totipotent cell is one that can give rise to all extraembryonic tissues, plus all tissues of the body and the germline (less stringent definition)
What is cell differentiation easy definition?
Listen to pronunciation. (sel DIH-feh-REN-shee-AY-shun) The process during which young, immature (unspecialized) cells take on individual characteristics and reach their mature (specialized) form and function.
What is plant Totipotency?
A plant grows by increasing its cell population while the cells specialize their functions. Therefore, every living cell of a plant should contain all the genes the plant has and thus has the capacity to grow back to a full plant. This is called cell totipotency .
Who introduced Totipotency?
Cellular totipotency was first hypothesized in the mid-19th century, based on the observations of the high capacity of regeneration of plants. In 1953, Muir, cited by Henshaw et al. (1982), was able to regenerate plants from isolated cells, demonstrating the theory of cellular totipotency.
Who proposed Totipotency?
T he concept of totipotency was first introduced by Driesch in the 1890s to define the potency of the first two cleavage cells in echinoderms [1] and refers to the capacity of a (single) cell to develop into a complete organism.