Bio 1500 Exam Questions And Answers |Latest
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Morphogensis - Answer✔the development of the form of an organism and its structures. This
stage begins differentiating organs.
Protoderm will become the - Answer✔epidermis which will protect the plant
ground meristem will become - Answer✔ground tissue that stores food and water called
chlorenchyma
procambium will become - Answer✔the vascular tissue Xylem and Phloem. Xylem moves water
upwards and phloem moves products of photosynthesis downward
Cotyledons - Answer✔not true leaves made from embryonic cells. Monocots have one dicots
and eudicots have two.
The carpel is - Answer✔The female part of the plant which consists of the ovule, ovary, stigma,
and style. ONLY PART THAT REMAINS>
Parenchyma - Answer✔ground tissue- Involves the support, storage, synthesis, secretion,
wound repair
Collenchyma - Answer✔type of ground tissue cell with a strong, flexible cell wall; helps support
larger plants
Sclerenchyma - Answer✔type of ground-tissue cell with an extremely thick, rigid cell wall that
makes ground tissue tough and strong
Germination - Answer✔the process whereby seeds or spores sprout and begin to grow. At this
point the cell is at 2n sphorophyte and is diploid. Cotyledons are formed first without leaves
being grown.
Xylem - Answer✔vascular tissue that carries water upward from the roots to every part of a
plant
Phloem - Answer✔Living vascular tissue that carries sugar and organic substances throughout a
plant (products of photosynethis)
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vessels - Answer✔thick tubes that carry water (dead at maturity)
dry indehiscent fruits - Answer✔The pericarp will not split open but move along with the seeds
during dispersal. (Sunflower seeds) Don't split when mature.
dry dehiscent fruits - Answer✔The pericarp will split open to release the seeds for dispersal.
(peas)
simple fleshy fruits - Answer✔develop from flower with single pistil. Tomato, berry. Can have
multiple seeds buried within the flesh of the fruit.
compound fruit - Answer✔fruit comprised of multiple pistils, either from individual flowers with
multiple pistils (aggregate fruit) or fused pistils from multiple flowers (multiple fruit).
(strawberries, raspberries)
double fertilization in angiosperms - Answer✔one sperm fertilizes the egg to form a zygote and
one sperm combines with two polar nuclei to form the endosperm 2n and 3n. The zygote
becomes the egg while the 3n is the endosperm supporting the plant.
angiosperm first division - Answer✔asymmetrical with one small side and one big side. The
small cell keeps dividing while the larger one becomes a suspender into the endosperm.
Morphogenesis - Answer✔The process by which an organism takes shape and the
differentiated cells occupy their appropriate locations.
what does the carpel wall develop into - Answer✔the fruit.
what is the seed coat developed by - Answer✔the ovule.
Name three things that promote outcrossing - Answer✔outcrossing- the gametes come from
different organisms. 1. separation of male and female parts. 2. Maturity of structures occurs at
different times. 3. self-incompatibility where the stigma recognizes its own pollen and stunts its
growth.
What do plants need first before changing - Answer✔A phase change comes first when plants
go from the juvenile stage to the adult stage. The other ones could be a light cue,
environmental factors, hormonal, etc.
endosperms are - Answer✔3n and help support the embryo
Superior plants - Answer✔when the ovary is attached above the floral parts. Called
hypogenous.
primitive plants - Answer✔have many parts, 4 whorls, non fused parts, superior ovary, and
radial symmetry.
More advanced plants have - Answer✔few parts, 4 whorls, fused parts, inferior ovary, and
bilateral symmetry.
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