Tissues quiz Flashcards

Epidermal tissue protects the plant from pathogens, physical damage, and helps prevent water loss.

The cuticle is a waxy film secreted by epidermal cells that helps prevent water loss by being hydrophobic.

Trichomes are hair-like structures made of specialized epidermal cells that can help with water loss, defense against herbivores, and even capturing prey.

The three main types of plant tissues are epidermal tissue, vascular tissue, and ground tissue.

Ground tissue is responsible for producing and storing important molecules for the plant.

The two regions of ground tissue in plant stems are the pith and the cortex.

Parenchyma cells are involved in healing, asexual reproduction, and lateral transport of water and nutrients.

Collenchyma cells provide structural support in growing parts of the plant, such as shoots and leaves.

Sclerenchyma cells provide structural support in areas where growth has ceased and are generally dead at maturity.

The two types of sclerenchyma cells are fibers and sclereids.

The apical meristem is responsible for primary growth, producing new cells for roots and shoots.

The three primary meristems are the protoderm (epidermis), procambium (vascular tissue), and ground meristem (ground tissue).

The vascular cambium is a type of lateral meristem that develops from the procambium and contributes to the formation of vascular tissue.

Primary growth involves the extension of roots and shoots, while secondary growth involves the thickening of stems and roots.

Totipotent parenchyma cells can develop into any type of cell, aiding in healing and asexual reproduction.

Vascular tissue transports water, nutrients, and photosynthetic products around the plant.

The two main types of vascular tissue are xylem and phloem.

Xylem transports water and dissolved nutrients unidirectionally from the roots to the shoots.

Trachids are long, thin water-conducting cells in xylem that have pits allowing water flow.

Trachids are long and thin, while vessel elements are shorter, wider, and have perforations for more efficient water conduction.

Phloem conducts sugars, amino acids, and chemical signaling molecules bidirectionally between roots and shoots.

Sieve tube elements are specialized parenchyma cells that transport sugars and other elements, facilitated by sieve plates.

Companion cells support sieve tube elements both metabolically and physically, helping them stay alive and functional.

Epidermal tissue protects the plant from pathogens, physical damage, and helps prevent water loss.

The cuticle is a waxy film secreted by epidermal cells that helps prevent water loss.

Trichomes are hair-like structures on the epidermis that can help with water loss, defense against herbivores, and reflecting sunlight.

Ground tissue is responsible for producing and storing important molecules and is found in regions like the pith and cortex.

Parenchyma cells are the most abundant cells in plants, involved in healing, asexual reproduction, and lateral transport of water and nutrients.

Sclerenchyma cells provide structural support in areas where growth has ceased and are generally dead at maturity.

Collenchyma cells provide structural support in growing parts of the plant, such as shoots and leaves, while being flexible and stretchy.