Tissues — Important Questions

Dense cytoplasm, Thin cellulose walls, Prominent nuclei, Lack of vacuoles

Meristematic tissue cells are very active with dense cytoplasm, thin cellulose walls, prominent nuclei, and they lack vacuoles. Large vacuoles would interfere with their ability to divide rapidly.

True

Parenchyma is the most common simple permanent tissue that generally stores food. It consists of relatively unspecialized cells with thin cell walls and large intercellular spaces.

Guard cells

Stomata are small pores in the epidermis enclosed by two kidney-shaped cells called guard cells. They control gas exchange and transpiration.

Transport of water, Transport of minerals, Providing mechanical support, Storage of food

Xylem transports water and minerals vertically, provides mechanical support through xylem fibers, and stores food in xylem parenchyma. Phloem transports food, not xylem.