BIOA02 Module 1 Questions With Complete Solutions
___ Hoarding Correct Answers Small mammal or bird
hoarding. (FINISH)
Alternation of generations Correct Answers Fertilization
(syngamy) -> Zygote; undergoes mitosis -> Embryo; undergoes
mitosis -> Sporophyte; meiosis -> Spores; undergoes mitosis ->
gametophyte; mitosis -> splits off into egg & sperm ->
Syngamy!!
Ant dispersal Correct Answers AKA Myrmecochory
Uses elaisomes that ants can take & feed on, while persuading
them to carry on the seeds farther in order to be germinated
otherwise.
Antheridium Correct Answers Male plant regions.
Apoplastic transport Correct Answers
Archegonium Correct Answers Female plant regions.
Basic flower organs Correct Answers Anther: holds pollen
Stigma: collects pollen
Pistil: female; make up of stigma, style & ovary
Ovary: contains egg
Style: connects stigma & ovary
Basis of plant life Correct Answers Bryophytes - first real
plants; all plants branch off or build from bryophytes.
,Bee pollination Correct Answers Symbiotic:
Parasitic:
Biogenic N cycle Correct Answers
Bryophyte life cycle Correct Answers Female: Archegonium
(1n)
Male: Antheridium (1n)
Strong water-dependent fertilization!!
Archegonium (1n; egg) & Antheridium (1n; spermatozoid)
come together to form a zygote (2n).
The zygote then becomes an embryo (2n), after mitosis.
After the embryo undergoes mitosis, it turns into a developing
sporophyte, then a sporophyte. (2n)
The sporophyte then undergoes MEIOSIS & releases spores (1n)
or capsules (2n).
SPORES:
The spores become each gametophyte (1n), either an egg (1n) or
the sperm (1n).
The gametophytes then come together once again during
fertilization.
CAPSULES:
The capsules (2n) are germinated and become protonema (1n).
The protonema then become developing gametophytes, and
eventually gametophytes (1n).
The gametophytes come together again during fertilization.
, Bundlesheath Cells Correct Answers The cells in which the
calvin cycle occurs during C4 photosynthesis.
Butterfly polliantion Correct Answers
C3 Photosynthesis Correct Answers A form of photosynthesis
where Rubisco in the mesophyll fix [CO2] during the calvin
cycle.
- inefficient
- most common type of photosynthesis
C4 Photosynthesis Correct Answers A form of photosynthesis
where PEP carboxylase captures CO2.
Have no photorespiration.
Efficiently fixes CO2 at low O2 levels.
The fixation of CO2 into Malate (4C compound) is an upstream
process using PEP carboxylase.
Leaves have Kranz anatomy!
**PEP Carboxylase does NOT react with O2!
Calvin Cycle Correct Answers The cycle in which CO2 is fixed
by Rubisco (C3) or PEP carboxylase (C4) in order to be used by
the plant in further metabolic processes.
___ Hoarding Correct Answers Small mammal or bird
hoarding. (FINISH)
Alternation of generations Correct Answers Fertilization
(syngamy) -> Zygote; undergoes mitosis -> Embryo; undergoes
mitosis -> Sporophyte; meiosis -> Spores; undergoes mitosis ->
gametophyte; mitosis -> splits off into egg & sperm ->
Syngamy!!
Ant dispersal Correct Answers AKA Myrmecochory
Uses elaisomes that ants can take & feed on, while persuading
them to carry on the seeds farther in order to be germinated
otherwise.
Antheridium Correct Answers Male plant regions.
Apoplastic transport Correct Answers
Archegonium Correct Answers Female plant regions.
Basic flower organs Correct Answers Anther: holds pollen
Stigma: collects pollen
Pistil: female; make up of stigma, style & ovary
Ovary: contains egg
Style: connects stigma & ovary
Basis of plant life Correct Answers Bryophytes - first real
plants; all plants branch off or build from bryophytes.
,Bee pollination Correct Answers Symbiotic:
Parasitic:
Biogenic N cycle Correct Answers
Bryophyte life cycle Correct Answers Female: Archegonium
(1n)
Male: Antheridium (1n)
Strong water-dependent fertilization!!
Archegonium (1n; egg) & Antheridium (1n; spermatozoid)
come together to form a zygote (2n).
The zygote then becomes an embryo (2n), after mitosis.
After the embryo undergoes mitosis, it turns into a developing
sporophyte, then a sporophyte. (2n)
The sporophyte then undergoes MEIOSIS & releases spores (1n)
or capsules (2n).
SPORES:
The spores become each gametophyte (1n), either an egg (1n) or
the sperm (1n).
The gametophytes then come together once again during
fertilization.
CAPSULES:
The capsules (2n) are germinated and become protonema (1n).
The protonema then become developing gametophytes, and
eventually gametophytes (1n).
The gametophytes come together again during fertilization.
, Bundlesheath Cells Correct Answers The cells in which the
calvin cycle occurs during C4 photosynthesis.
Butterfly polliantion Correct Answers
C3 Photosynthesis Correct Answers A form of photosynthesis
where Rubisco in the mesophyll fix [CO2] during the calvin
cycle.
- inefficient
- most common type of photosynthesis
C4 Photosynthesis Correct Answers A form of photosynthesis
where PEP carboxylase captures CO2.
Have no photorespiration.
Efficiently fixes CO2 at low O2 levels.
The fixation of CO2 into Malate (4C compound) is an upstream
process using PEP carboxylase.
Leaves have Kranz anatomy!
**PEP Carboxylase does NOT react with O2!
Calvin Cycle Correct Answers The cycle in which CO2 is fixed
by Rubisco (C3) or PEP carboxylase (C4) in order to be used by
the plant in further metabolic processes.
