Tree Biology
Terms
undefined, object
copy deck
- In the CODIT model, the LEAST effective barrier resists the spread of decay in the tree trunk
- vertically
- You can tell the yearly extension growth of a twig by
- measuring between the terminal bud scars.
- Specialized zones of intense cell division in plants are known as
- meristems
- Old phloem becomes incorporated in the
- bark
- The closure of a would on the trunk of a tree is accomplished by
- formation of new-tissues by the cambium.
- The tree root that are PRIMARILY responsible for holding the tree erect are
- large basal roots
- Organic compounds more PRIMARILY away from the leaves and downwrd through the tree in the
- phloem
- Tap roots
- initiate root distribution in the soil.
- Every branch on a tree
- has a single corresponding root connected to it.
- Allelopathy occurs when
- one plant chemically inhibits the growth of another plant.
- Phototropism in a plant is
- a directional response to light.
- A group of cells which provides shoots and leaves is called the
- apical meristem
- Osmosis is the movement of
- materials across a membrane from areas of high concentrations to areas of low concentrations
- A true statement about roots is that
- roots grow when and where the environment is favorable.
- A FALSE statement about respiration is
- only green plants are capable of respiration.
- If the terminal bud is removed by pruning
- growth from lateral buds will be stimulated.
- New cells forming on the inside of the cambium become known as
- Xylem
- It is a FALSE statement to say that bark
- transpots water
- In a cross section of a tree, the line of cells that extend across the annual rings are called
- rays
- Tree trunks containing wood decay organisms
- should be left alone
- Most water and essential elements are absorbed into the tree through the
- ends of the root and mycorrhizae
- Stored food for growth and maintenance of a branch comes PRIMARILY from the
- last few annual rings of sapwood in the branch.
- The pard of the root that senses and reacts to the surrounding soil environment
- The root caps and root meristems
- The PRIMARY function of heartwood is
- mechanical support.
- Trees absorb nearly all water and minerals through
- fine, fibrous roots.
- The letters of 'CODIT' stand for
- compartmentalization of decay in trees.
- Seasonal changes within the bud are sensed by
- phytochrome
- In respiration, sugars utilized to generate energy for a tree produce water and
- carbon dioxide.
- A tree uses sugars and oxygen to release carbon dioxide and enerhy in a process known as
- respiration
- Gas exchange in the bark is through
- lenticels
- When transpirational water losses exceed the tree's ability to take up water from the soil, the IMMEDIATE result is that
- the stomated close
- The negative pressure gradient created by transpiration allows
- water to be pulled up through the tree