Brooks Biodiversity Unit 3 Exam
1. Leaves in plants Collection and conversion of solar energy
function as...
2. Roots in plants func- Anchorage & absorption
tion...
3. Stems in plants func- Positioning and support of leaves
tion...
4. Transport in plants... Vascular system
5. Epidermis of leaf Upper & Lower
Cuticle
- wax/cutin top shiny layer of leaves
Guard cells w/ Stomata
- can be present on both sides of leaves, but typically on lower side.
- allow for exchange of gasses
6. Mesophyll of leaf Middle layer of leaf between upper and lower epidermis
Parenchyma (generic cells in mesophyll)
Dicots have a double middle layer w/ both Palisade (more packed) & Spongy
(less packed) layers
7. Vein of leaf Vascular Bundle
Bundle of xylem and Phloem
8. Which Parenchyma Palisade - closer to the light.
(Palisade or spongy)
, Brooks Biodiversity Unit 3 Exam
is more important to
light-dependent re-
actions?
9. Xylem Living vascular tissue that carries water/nutrients upward from the roots to
every part of a plant
Aimed toward inner of stem.
10. Phloem Living vascular tissue that carries sugar (from photosynthesis) and organic
substances downward throughout a plant.
Aimed to outside of stem.
11. Stem Structure - Di- Epidermis
cot Cortex - Between vascular bundles and epidermis.
Vascular bundles - form a ring around the pith (inner area).
12. Collenchyma modified parenchyma
ex: fibrous strands of celery
13. Sclerenchyma fibers - what rope was originally built from.
strengthening tissue in a plant, formed from cells with thickened, typically
lignified, walls.
14. Sclerids Kind of Sclerenchyma
ex: shells of nuts, granules in pears
15. Procambium
, Brooks Biodiversity Unit 3 Exam
Same as "Vascular Cambium"
Transitional embryonic like tissue that gives rise to Xylem on inside and
Phloem on the outside.
16. Stem Structure - Epidermis
Monocot Scattered vascular bundles among parenchyma
Ground (indistinguishable) parenchyma "ground tissue"
17. Vascular Tissue - - form tubular structures
Xylem - cells die at maturity
- made up of Tracheids (narrow tube shaped cells with perforated end
plates)
- Tracheids can clog up frequently, plants must continuously produce Xylem.
- also made up of Vessel members (large tube shaped cells with no end
plates or partitions)
18. Which of the follow- Vessel members
ing tube-like struc- Larger, no end plates or partitions.
tures would allow
for more water flow?
, Brooks Biodiversity Unit 3 Exam
Tracheids or Vessel
Members
19. Vascular Tissue - - both sieve tube members and companion cells stay alive because it utilizes
Phloem active transport to move sugar into tissues.
- made up of Sieve tube members (have sieve plates) and companion cells.
- companion cells - assists sieve tube members metabolically.
20. Which of the follow- Companion cells
ing cell types is most Simultaneously maintain own metabolism while keeping the sieve tube
active metabolically member alive as well.
when fully function-
al?
Tracheids, Vessel
members, sieve tube
members or com-
panion cells
21. Epidermis w/ root -increase surface area for absorption
hairs -especially important for young seeds
22. Epidermis vs Endo- Epidermis - outer layer, can grow root hairs
dermis in roots Endodermis - layer in interior of root made up of Casparian Strips.
1. Leaves in plants Collection and conversion of solar energy
function as...
2. Roots in plants func- Anchorage & absorption
tion...
3. Stems in plants func- Positioning and support of leaves
tion...
4. Transport in plants... Vascular system
5. Epidermis of leaf Upper & Lower
Cuticle
- wax/cutin top shiny layer of leaves
Guard cells w/ Stomata
- can be present on both sides of leaves, but typically on lower side.
- allow for exchange of gasses
6. Mesophyll of leaf Middle layer of leaf between upper and lower epidermis
Parenchyma (generic cells in mesophyll)
Dicots have a double middle layer w/ both Palisade (more packed) & Spongy
(less packed) layers
7. Vein of leaf Vascular Bundle
Bundle of xylem and Phloem
8. Which Parenchyma Palisade - closer to the light.
(Palisade or spongy)
, Brooks Biodiversity Unit 3 Exam
is more important to
light-dependent re-
actions?
9. Xylem Living vascular tissue that carries water/nutrients upward from the roots to
every part of a plant
Aimed toward inner of stem.
10. Phloem Living vascular tissue that carries sugar (from photosynthesis) and organic
substances downward throughout a plant.
Aimed to outside of stem.
11. Stem Structure - Di- Epidermis
cot Cortex - Between vascular bundles and epidermis.
Vascular bundles - form a ring around the pith (inner area).
12. Collenchyma modified parenchyma
ex: fibrous strands of celery
13. Sclerenchyma fibers - what rope was originally built from.
strengthening tissue in a plant, formed from cells with thickened, typically
lignified, walls.
14. Sclerids Kind of Sclerenchyma
ex: shells of nuts, granules in pears
15. Procambium
, Brooks Biodiversity Unit 3 Exam
Same as "Vascular Cambium"
Transitional embryonic like tissue that gives rise to Xylem on inside and
Phloem on the outside.
16. Stem Structure - Epidermis
Monocot Scattered vascular bundles among parenchyma
Ground (indistinguishable) parenchyma "ground tissue"
17. Vascular Tissue - - form tubular structures
Xylem - cells die at maturity
- made up of Tracheids (narrow tube shaped cells with perforated end
plates)
- Tracheids can clog up frequently, plants must continuously produce Xylem.
- also made up of Vessel members (large tube shaped cells with no end
plates or partitions)
18. Which of the follow- Vessel members
ing tube-like struc- Larger, no end plates or partitions.
tures would allow
for more water flow?
, Brooks Biodiversity Unit 3 Exam
Tracheids or Vessel
Members
19. Vascular Tissue - - both sieve tube members and companion cells stay alive because it utilizes
Phloem active transport to move sugar into tissues.
- made up of Sieve tube members (have sieve plates) and companion cells.
- companion cells - assists sieve tube members metabolically.
20. Which of the follow- Companion cells
ing cell types is most Simultaneously maintain own metabolism while keeping the sieve tube
active metabolically member alive as well.
when fully function-
al?
Tracheids, Vessel
members, sieve tube
members or com-
panion cells
21. Epidermis w/ root -increase surface area for absorption
hairs -especially important for young seeds
22. Epidermis vs Endo- Epidermis - outer layer, can grow root hairs
dermis in roots Endodermis - layer in interior of root made up of Casparian Strips.
