Plant Systems & Organs
What two systems are found in plants?
The shoot system and the root system.
What is the purpose of the root system?
anchors plant, absorbs water and nutrients, stores food.
What are the two types of plant stems?
Woody plants and herbaceous plants
This is a spongy layer that stores water, but eventually disappears in a woody stem.
Pith
A plant whose life cycle is 2 years.
Biennial
What is the purpose of the shoot system?
Holds the plant upright, manufactures food, and reproduces the plant by means of seeds.
What are the two basic designs of roots?
Taproots and fibrous roots.
A plants whose cells contain __________ are classified as a woody plant.
Lignin
This is a ring of cells that separates the phloem from the xylem and creates new layers of xylem in woody plants.
Cambium
A plant whose life cycle last more than two years.
Perennial
What organs make up the shoot system?
Stem, leaf, and flower.
This part of the root transports water absorbed by the roots to the rest of the plant.
Xylem
What is the difference between a tree and a shrub?
Trees have a long, tall, main stem. Shrubs have several low stems.
What are the three areas in a woody stem?
Bark, wood, and pith.
A plant whose life cycle lasts for one year.
Annual
What is an organ?
An organ is a structure made of tissue that performs a particular function in an organism.
What are the two types of taproots?
Food-storing taproots, and non-food storing taproots.
What is the purpose of the epidermis in an herbaceous stem?
Thickened layer of cells that provides protection
What is sap, and where is it found in the tree?
Sticky substances that trees produces as food. It is found in the phloem.
What is the life cycle of a plant?
Germinates, flowers, produces seeds, dies.
What is a system?
A system is a group of organs that work together to perform a particular function.
What is the difference between a taproot and a fibrous root.
Taproot= one primary root jutting straight into the ground with few roots branching from it.
Fibrous roots = wide-spreading mass of roots without a primary root.
True or false: Vines could be either woody or herbaceous
True
What is the difference between heartwood and sapwood?
HW = Rings of wood that no longer carry water.
SW = rings of wood that still carry water.
How can a farmer trick his tomato plant into producing fruit every year?
By planting it when it is still cold outside.