Amwoga Khalwale

Plants are typically made up of roots, stems and leaves. Plant tissues can be broadly categorized into dividing meristematic tissue or non-dividing permanent tissue. What Are Meristematic Tissues? Meristematic tissue or meristem are tissues that have ability to enlarge, stretch and differentiate into other types of cells as they mature. The cells of this tissue … Read more

What Is Respiration?  Respiration can also be referred to as Normal respiration or dark respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP) and the release the metabolic waste products. The mitochondria found in the cell cytoplasm … Read more

What Is Phototropism? Phototropism is the growth of an organism in response to a light stimulus. Growth towards a light source is referred to as positive phototropism whereas growth away from the light source is referred to as negative phototropism. Positive phototropism is common among the shoots of higher plants while roots usually exhibit negative … Read more

What Are Stomata? Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems.  A large number of the stomata are located on the underside of plant leaves reducing their exposure to heat and air current. Stomata … Read more

What Is Transpiration? Transpiration is the loss of water from the plant through evaporation at the leaf surface. Transpiration happens when plant opens its stomata to let in carbon dioxide, water on the surface of the cells of spongy mesophyll and palisade mesophyll evaporates and diffuses out of the leaf. Transpiration is the main driver … Read more

What Is Meant By Facilitated Diffusion? Facilitated diffusion also referred to as facilitated transport or passive-mediated transport can be described as passive movement of molecules across the cell membrane through a concentration gradient by means of a carrier molecule (membrane protein).  This process is mediated by two distinct types of transport proteins-channel proteins and carrier … Read more

Permanent tissues are tissues formed when meristematic tissues lose their ability to divide and re-divide after some extent. They can be thin walled or thick walled and have permanent shape. Permanent tissues can either be simple or permanent complex tissues.  The permanent tissue in plants mainly helps in providing support, protection as well as in … Read more