Phloem is responsible for the transport of sugars and other metabolic products downward from the leaves.

Phytochemicals are compounds in plants that can help prevent diseases.

Phytosterols can help lower cholesterol levels in humans by blocking the absorption of cholesterol in the intestines.

Phytosterols are known to lower cholesterol levels in the body.

Pollinators transfer pollen from the male anthers to the female stigma, facilitating fertilization.

Pollinators facilitate cross-pollination, which enhances genetic diversity and can lead to evolutionary adaptations in flowering plants.

Rhizobium bacteria form nodules on legume roots and fix atmospheric nitrogen, benefiting the plant.

Rhizobium bacteria form nodules on legume roots and fix atmospheric nitrogen, benefiting the plant.

Rhizobium bacteria form symbiotic relationships with legume roots, fixing nitrogen and improving soil fertility.

RNA acts as a messenger (mRNA) and translator (tRNA) in the process of protein synthesis.

RuBisCO is the enzyme that catalyzes the fixation of carbon dioxide in the Calvin cycle.

RuBisCO is the enzyme that catalyzes the fixation of carbon dioxide in the Calvin cycle.

Stomata are small openings on the leaf surface that allow for gas exchange, including the intake of carbon dioxide and release of oxygen.

Stomata are small openings that allow for gas exchange, including the intake of carbon dioxide.

The apical meristem is responsible for cell division, leading to primary growth in plants.

The apical meristem is responsible for cell division and growth at the tips of roots and shoots.

Cambium is a type of meristematic tissue that contributes to secondary growth, increasing the thickness of stems and roots.

The endoplasmic reticulum is involved in the transport of materials within the cell and the synthesis of proteins and lipids.

The ovule develops into a seed after fertilization, containing the embryo and food supply.

The seed coat serves to protect the embryo from physical damage and desiccation during dormancy.

The stigma is the part of the pistil that receives pollen during the process of fertilization.

Stomata play a crucial role in gas exchange, allowing plants to adapt to different environments throughout evolution.

The style connects the stigma, where pollen lands, to the ovary, where ovules are located.

Tissue culture is used to propagate plants in a controlled, sterile environment, allowing for mass production.

Water acts as an electron donor in the light reactions of photosynthesis.

Water serves as the source of electrons in the light reactions.

Water provides electrons through photolysis during the light reactions.

Water acts as an electron donor in the light-dependent reactions, leading to the production of oxygen.

Alkaloids have significant medicinal properties and can affect human health.

Antioxidants help prevent cell damage caused by free radicals, thus playing a crucial role in maintaining health.