37 results found

Search Results for: stomata

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Leaves

Leaves are highly efficient solar energy converters. They capture light energy and through the process of photosynthesis.... Read More

Stoma

Definition noun, plural: stomata (botany) A tiny pore in a plant leaf surrounded by a pair of guard cells that regulate its... Read More

Light-independent reaction

The process of photosynthesis is a biological procedure in which plants produce oxygen and energy (sugar) by using light... Read More

CAM plant

Definition noun (botany) A plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define the epidermis as one or more layers of cells forming the tough... Read More

Flaccid

Flaccid Definition Biology – What is Flaccid? In botany, the term flaccid refers to a cell that lacks turgidity, i.e. it... Read More

Bryophytes

Bryophytes (nonvascular plants) do not have xylem or phloem. The habitations of this plant group are widely varied and... Read More

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Egestion

Egestion is the act or process of voiding or discharging undigested food as faeces. To egest means to discharge undigested... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Stomata

(noun) Plural form of stoma. See stoma for definition and additional... Read More

Photorespiration

Definition noun (1) The process by which in the presence of light plant consumes oxygen and releases carbon dioxide (in... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More

Macrophytes

Introduction    Examples of Macrophytes. (Source: Canada's AquaticEnvironments) ... Read More

Transpiration

Definition noun (physics) The passage of gases through fine tubes or through a porous substance. (botany) The loss of water... Read More

Diffusion

Diffusion Definition Diffusion is the net passive movement of molecules or particles from regions of higher to regions of... Read More

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Leaf

Leaf Definition (botany) A plant organ that is specialized for photosynthesis. Collectively, it constitutes foliage.... Read More

C3 carbon fixation pathway

Definition noun A metabolic pathway where CO2 is converted to 3-phosphogylycerate, the first stable intermediate organic... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Plant cell

Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More

Trichome

Definition noun, plural: trichomes (botany) An outgrowth (hair-like or scale-like) from the epidermal cell (microbiology) A... Read More

Hydrophyte

Definition noun, plural: hydrophytes (botany) Any plant adapted to grow wholly or partly submerged in water or wet habitats;... Read More

C3 plant

Definition noun (botany) (1) A plant that utilizes the C3 carbon fixation pathway as the sole mechanism to convert CO2 into... Read More

Transpirtation

TranspirationA physiological process in which water evaporates from the leaves of plants (particularly through the... Read More

Leaves – Dorsiventral

These leaves grow horizontally, so that the majority of photosynthetic cells are facing upwards and receiving light in the... Read More

Plasmolysis

Plasmolysis is the shrinking of protoplasm away from the cell wall of a plant or bacterium. The protoplasmic shrinking is... Read More

Lenticel

Lenticel a loosely-packed mass of cells in the bark of a woody plant, visible on the surface of a stem as a raised powdery... Read More

Respiratory system

Definition noun An organ system comprised of organs and structures associated for respiration or gas exchange Supplement An... Read More

Cohesion

Cohesion Definition What is cohesion? Cohesion, in science definition, refers to the state of cohering or sticking together... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Water

Water Definition (1) (biochemistry) A chemical substance, with chemical formula H2O, that is a clear, colorless, odorless,... Read More

Seed Plants

There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More