Do all plant organs contain all three types of plant tissue?

The protective outer covering of a plant.

What covers epidermal cells of plants and protects against water loss?

Water conducting vascular tissue in plants.

A plant tissue that transports nutrients

What two cell types make up xylem?

What part of xylem contains lignin, that give wood its strength?

This plant tissue produces and stores sugars and contributes to the physical support of the plant.

What cell type make sup most of ground tissue?

Regions of unspecialized cells in which mitosis produces new cells that are ready for differentiation.

What are apical meristems?

What type of meristem tissue produces a plant's reproductive organs?

In some plants, the large primary root grows long and thick and gives rise to smaller branch roots. This type of root system is called a ___ system.

What type of root system helps anchor topsoil in place?

Thin cellular projections called ___ greatly increase the surface area for absorption of water and nutrients.

Part of a root made up of phloem and xylem.

How do plants absorb essential nutrients from soil?

What specialized structure prevents back flow of water, so that water has nowhere to go but up the root, into the stem, and out the leaves?

In ___ phloem and xylem is arranged in vascular bundles scattered throughout the stem.

A tissue known as ___ produces vascular tissue and increases the thickness of a stem over time.

In a leaf, specialized ground tissue called ____ is where photosynthesis occurs.

These cells control the opening and closing of stomata.

Why aren't stomata open all of the time so plants could do photosynthesis all day long?

Water molecules are drawn towards each other due to a force called ___

The combination of ___ and ___ lifts water upward through the xylem tissues of a plant.

Chemical signals that affect the growth, activity, and development of cells and tissues.

Chemical messenger that stimulate cell elongation and the growth of new roots.

Which side of a plant stem will have more auxins in its cells - the sunny side or the shaded side?

If you snip off the tip of a plant it will grow bushier. Why?

What plant hormone stimulates the ripening of fruit?

What plant hormone is responsible for seed dormancy?

What plant hormone is responsible for gravitropism - where plants grow upward against the pull of gravity?

What 4 plants are depended upon by most people for an adequate food supply?