BIOL 1503 EXAM 3 QUESTIONS WITH VERIFIED
ANSWERS
Development begins with a single _____________ cell - Answers - unspecialized
At all times, the embryo must remain ______ - Answers - living
Development creates cellular _________ - Answers - Diversity
In development, maintaining the __________ of life is essential - Answers - continuity
"life comes from ____________ life" - Answers - pre-existing
In plants, PRIMARY growth involves an increase in ______ and the ______ meristem. -
Answers - Length
Apical
In plants, SECONDARY growth involves an increase in ________ and the _______
meristem. - Answers - Diameter
Lateral
What are the three basic plant organs? - Answers - Roots
Stems
Leaves
In plants, the roots...
1. store _________
2. ______ the plant
3. absorb ________ and _____
4. _________ liquids
5. produce new _______ - Answers - 1. store nutrients
2. anchor the plant
3. absorb minerals and water
4. transport liquids
5. produce new tissues
(T/F) The stem of some plants can undergo photosynthesis - Answers - True (cacti)
(T/F) Plant leaves can transport liquids - Answers - True
If you carve your initials into a tree and come back 20 years later, where will your initials
be? (higher, same place, lower) - Answers - same place
,Plants grow from the _____ - Answers - tips of roots and shoots
New cells are produced in the ______ meristems - Answers - apical
The meristem is protected by the _______ _____
(zone of cell division) - Answers - root cap
the SHOOT APICAL MERISTEM is the dome-shaped mass of dividing cells at the tip of
the ________ bud - Answers - terminal
Why don't shoot apical meristems need a root cap? - Answers - because the shoot is
pushing past air (no resistance/no need for protection)
shoot apical meristem - Answers -
What are the names of vascular tissue found in plants? - Answers - Xylem
Phloem
Is the pattern of arrangement of the vascular tissue the same in shoots and roots? -
Answers - NO
In primary growth, the meristems also produce three primary tissues - Answers - 1.
Dermal/Epidermal
2. Vascular
3. Ground
In primary growth, the meristems also produce three primary tissues
1. Dermal/Epidermal
- EXPLAIN - Answers - Always on the outside, always the same
In primary growth, the meristems also produce three primary tissues
2. Vascular
- EXPLAIN - Answers - Different arrangement in roots/shoots
In roots, the vascular tissue... - Answers - is contained in a single vascular bundle
(steele)
[dark inside of carrot]
In shoots, the vascular tissue... - Answers - is made up of many vascular bundles
distributed throughout the stem
In primary growth, the meristems also produce three primary tissues
3. Ground
- EXPLAIN - Answers - different arrangement in roots/shoots
, Where would the youngest part of a tree be located? - Answers - right underneath the
bark
Where would the oldest part of a tree be located? - Answers - in the very center
How do plants get larger? (Two ________ meristems) - Answers - lateral
________ cambium: produces new xylem and phloem - Answers - vascular
________ cambium: produces the outer bark - Answers - cork
The vascular cambium produces phloem cells on the (inside/outside) and xylem cells on
the (inside/outside). - Answers - xylem cells on inside
phloem cells on outside
Primary growth (what year) - Answers - this year's growth
secondary growth (year) - Answers - previous year's growth
primary/secondary growth image - Answers -
(T/F) Xylem cells produced at different times of year are different sizes - Answers -
TRUE
Spring xylem - Answers - large diameters and thin walls (big tubes to transport lots of
water)
Summer xylem - Answers - smaller diameter and thick walls (prevent water loss)
the difference in the xylem sizes produces... - Answers - variation in tree ring patterns
Where is the oldest phloem located? - Answers - in the bark of the tree
Where is the oldest xylem located? - Answers - in the center of the tree
Where is the youngest xylem located? - Answers - just inside the vascular cambium
where is the youngest phloem located? - Answers - just outside the vascular cambium
After fertilization, animal development consists of three stages:
1.
2.
3. - Answers - 1. Formation of a mass of cells (morphogenesis)
2. Formation of basic tissue layers (cleavage)
3. Formation of organs (organogenesis)
ANSWERS
Development begins with a single _____________ cell - Answers - unspecialized
At all times, the embryo must remain ______ - Answers - living
Development creates cellular _________ - Answers - Diversity
In development, maintaining the __________ of life is essential - Answers - continuity
"life comes from ____________ life" - Answers - pre-existing
In plants, PRIMARY growth involves an increase in ______ and the ______ meristem. -
Answers - Length
Apical
In plants, SECONDARY growth involves an increase in ________ and the _______
meristem. - Answers - Diameter
Lateral
What are the three basic plant organs? - Answers - Roots
Stems
Leaves
In plants, the roots...
1. store _________
2. ______ the plant
3. absorb ________ and _____
4. _________ liquids
5. produce new _______ - Answers - 1. store nutrients
2. anchor the plant
3. absorb minerals and water
4. transport liquids
5. produce new tissues
(T/F) The stem of some plants can undergo photosynthesis - Answers - True (cacti)
(T/F) Plant leaves can transport liquids - Answers - True
If you carve your initials into a tree and come back 20 years later, where will your initials
be? (higher, same place, lower) - Answers - same place
,Plants grow from the _____ - Answers - tips of roots and shoots
New cells are produced in the ______ meristems - Answers - apical
The meristem is protected by the _______ _____
(zone of cell division) - Answers - root cap
the SHOOT APICAL MERISTEM is the dome-shaped mass of dividing cells at the tip of
the ________ bud - Answers - terminal
Why don't shoot apical meristems need a root cap? - Answers - because the shoot is
pushing past air (no resistance/no need for protection)
shoot apical meristem - Answers -
What are the names of vascular tissue found in plants? - Answers - Xylem
Phloem
Is the pattern of arrangement of the vascular tissue the same in shoots and roots? -
Answers - NO
In primary growth, the meristems also produce three primary tissues - Answers - 1.
Dermal/Epidermal
2. Vascular
3. Ground
In primary growth, the meristems also produce three primary tissues
1. Dermal/Epidermal
- EXPLAIN - Answers - Always on the outside, always the same
In primary growth, the meristems also produce three primary tissues
2. Vascular
- EXPLAIN - Answers - Different arrangement in roots/shoots
In roots, the vascular tissue... - Answers - is contained in a single vascular bundle
(steele)
[dark inside of carrot]
In shoots, the vascular tissue... - Answers - is made up of many vascular bundles
distributed throughout the stem
In primary growth, the meristems also produce three primary tissues
3. Ground
- EXPLAIN - Answers - different arrangement in roots/shoots
, Where would the youngest part of a tree be located? - Answers - right underneath the
bark
Where would the oldest part of a tree be located? - Answers - in the very center
How do plants get larger? (Two ________ meristems) - Answers - lateral
________ cambium: produces new xylem and phloem - Answers - vascular
________ cambium: produces the outer bark - Answers - cork
The vascular cambium produces phloem cells on the (inside/outside) and xylem cells on
the (inside/outside). - Answers - xylem cells on inside
phloem cells on outside
Primary growth (what year) - Answers - this year's growth
secondary growth (year) - Answers - previous year's growth
primary/secondary growth image - Answers -
(T/F) Xylem cells produced at different times of year are different sizes - Answers -
TRUE
Spring xylem - Answers - large diameters and thin walls (big tubes to transport lots of
water)
Summer xylem - Answers - smaller diameter and thick walls (prevent water loss)
the difference in the xylem sizes produces... - Answers - variation in tree ring patterns
Where is the oldest phloem located? - Answers - in the bark of the tree
Where is the oldest xylem located? - Answers - in the center of the tree
Where is the youngest xylem located? - Answers - just inside the vascular cambium
where is the youngest phloem located? - Answers - just outside the vascular cambium
After fertilization, animal development consists of three stages:
1.
2.
3. - Answers - 1. Formation of a mass of cells (morphogenesis)
2. Formation of basic tissue layers (cleavage)
3. Formation of organs (organogenesis)
