Plant Biology

What roles do plants serve in the ecosystem?

• •Reduce soil erosion

• •Food

• Oxygen

• All of the above

How plant differ from animals

• •Plant utilize carbon dioxide and give off oxygen.

• •Plant have rigid cell walls with cell membranes inside.

• •Plant are stationary.

• Plant produce their own food with the aid of nutrients from the soil.

• All of the above

How plants and animals are alike

• •They are made of cells.

• •They must have food

• •They carry on life processes, such as circulation, respiration and growth.

• They have a life cycle.

  
  
  

• All of the above

Three major factors that affect plant growth

• Temperature

• Warm season plants start growing in the spring and finish in the fall. I.e., bananas, oranges, cotton and corn.

• Cool season plants have a life cycle that begins in the fall and ends when summer begins. I.e., wheat, rye, and oats.

• Not being as tall as other plants

how are they classified?

• •Biennials- complete life cycle in two years.

• Annuals- complete life within one year.

• Life cycle doesn’t classify them

• Perennials- plants live for more than two years

Flowers; seed in ovary

• Gymnosperm

• Angiosperm

Many insect pollinated

• Angiosperms

• Gymnosperm

Evergreen or deciduous

• Angiosperms

• Gymnosperm

All life cycles and habitats

• Angiosperms

• Gymnosperm

Non resinous

• Angiosperms

• Gymnosperm