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8th Grade Botany

Final Exam Questions

QuestionAnswer
What is the proper way to write a plant's scientific name? We call a plant by its Genus and species name. Both names are written in italics, but only the Genus name is capitalized.
Why do scientists use Latin in science? Latin is an unchanging language that allows scientists from everywhere to communicate with each other and for them to have the same common names for the things they are studying.
What is the chemical name for oxygen? O2
What is the chemical name for carbon dioxide? CO2
What is a biomass fuel? A renewable fuel made from products of living organisms (Ethanol).
What is a Fossil Fuel? A non-renewable fuel that is derived from plants and animals that lived long ago (Gasoline).
What percentage of our atmosphere is oxygen? 21%
What percentage of our atmosphere is carbon dioxide? less than 1/2 %
What gas is responsible for about 78% of the atmosphere? Nitrogen
What are the vascular tubes of tracheophytes called, what are their specific jobs, and where in the vascular bundle are they located? Xylem-located in the inner layer of the vascular bundle and responsible for transporting water and nutrients up from the roots to the rest of the plant.
What are the vascular tubes of tracheophytes called, what are their specific jobs, and where in the vascular bundle are they located? Phloem-located on the outer layer of the vascular bundle and responsible for transporting food down from the leaves to the rest of the plant.
What method does a bryophyte use to obtain its water/food? Absorption
What method does a tracheophyte use to obtain its water/food? A vascular system of xylem and phloem
All angiosperms produce___ and have seeds encased in ___. flowers, fruit
How is an angiosperm determined to be a monocotyledon or a dicotyledon if you can only examine the seed? Mono means one: therefore if the seed only has one cotyledon it is a monocot. Di means two, so if it has two cotyledons it is a dicot.
What if you could only examine the leaves? Monocots are long and slender with veins that run almost parallel to each other.
What if you only had the stems to examine? the xylem/phloem within the stem would tend to be scattered randomly in a monocot stem and arranged in a ring of a dicot stem.
What if you could only examine the flowers? Monocots are in multiples of 3, 6, and 9, whereas dicots usually have petals in groups of 4 or 5.
What is a producer? produces its own food (plants)
What is a consumer? relies on other organisms to obtain its nutrients (animals)
What is a decomposer? not interested in anything alive, it thrives off of dead organisms to obtain its nutrients (fungus)
When a plant begins to make its own food, what type of food will it be? sugar
What is pollination? When a grain of pollen falls on the stigma. Wind, gymno and angio. Most angiosperms rely on birds, bats and insects for pollination.
What is fertilization? If the pollen falls on the stigma of a similar plant, fertilization can occur. A sperm cell joins with an egg cell inside an ovule within the ovary at the base of the flower.
What is a fruit? Everything that grows from a pollinated flower and contains seeds is considered a fruit.
What is a vegetable? Any edible part of a plant that does not have seeds.
What is the purpose of the flower? to produce seeds and scatter them around
What connects the stigma to the ovary? style
The female reproductive cells are contained in the ___. ovule
The bottom part of the pistil is called the ___. ovary
We call the undeveloped plant or animal the ___. embryo
After ___ the ovule develops inot a seed. fertilization
The part of the pistil where pollen grains land is the ___. stigma
During fertilization, the tip of the ___ enters the ovule. pollen tube
The mature ovary, with its ___, is called a fruit. seeds
What do we call the tiny leaves on the flower that's job is to protect a flower bud? sepals
What structure produces the male plant sperm? anther
The pistil is located in the ___ of a flower. center
Pollen on the ___ of a flower is transferred to the ___ of another flower. This is referred to as ___. anther, stigma, pollination
The pollen forms a ___ tube which grows down into the ___, and the sperm unites with the egg to form ___. This is referred to as ___. pollen, ovary, seeds, fertilization
Unneeded water evaporates into the air through the __________ of the plant Leaves
Where does photosynthesis take place? In the leaves
What does a plant give off as a byproduct during photosynthesis Oxygen
An organism that gets food by eating other organism is both a _________and a _________ consumer/heterotroph
What gas is taking in through the leaves? Carbon Dioxide
What is sunlight providing to the process? Energy
What gas is given off as I byproduct? Oxygen
During our germination project we observed that no matter which way we turn the seeds, the roots would always grow downward... this is an example of which of tropism? Geotropism or specifically gravitropism
Created by: LiseBrinkley