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40 Cards in this Set
- Front
- Back
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What is one major difference between plants and most animals?
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Plants are rooted in the ground and therefore stationary, while animals are mobile.
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Name 2 products that we use that come from plants.
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Oxygen, wood, food,paper
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Is our life on this Earth possible without plants? Justify why?
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NO! We wouldn't be able to breath due to oxygen from plants through photosynthesis
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What are the three main tissues of the plant?
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Vascular, Dermal, and Ground
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What are the three main requirements for seed germination?
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Water
Temperature Oxygen |
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Which of the cells in the ground tissue system has cells that are dead and lignified at maturity?
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sclerenchyma
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Name 2 cell types found in Xylem
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Fibers, Parenchyma, tracheids, and vessels
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Name 3 cell types found in Phloem
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Companion cells, sieve, parenchyma, and fibers
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Define an essential element
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An element that is necessary for growth and reproduction
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Why are chlorine, boron, nickel, etc. called micronutrients?
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because they are needed in minute quantites by the plant
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Apical meristem: relate the words in
Tunica layer and corpus Anticlinal and periclinal divisons |
Tunica layer: Anticlinal
Corpus: Periclinal divisons |
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what is the name of the major photosynthetic tissue in the leaf?
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Mesophyll or palisade mesophyll
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- One which leaf surface are the stomates in the lilac ( a mesophyte) and a water lily ( a hydrophyte)
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lilac ( mesophyte) on bottom
water lily on top |
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What are the two lateral meristems that increase the girth of plants
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Vascular cambium and cork cambium
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what is another name for wood?
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SECONDARY xylem!
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Name three tissues in the bark
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Phloem, parenchyma, cork cells and cork cambium
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the cells of wood rays are what type?
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parenchyma
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The offspring created during sexual reproduction are genetically ______, while those formed during asexual reproduction are genetically __________.
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different, asexual
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give one advantage of asexual reproduction?
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if the genotype is well adapted so will the offspring
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Give one advantage of sexual reproduction?
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easy to adapt to changing environments
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what is the relationship between the phenotype and the genotype
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the phenotype is the result of the interaction between the genotype and the environment
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define "fitness" of an organism
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ability to survive and reproduce
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selection occurs at the _____ level while evolution occurs at the ___ level
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individual, population
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-name 2 of the 5 processes that can lead a population away from Hardy- Weinberg equilibrium
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genetic drift, gene flow, mutation, natural selection, non-random mating
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Define allopatric and sympatric speciation.
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Allopatric= genetic isolation by means of geographical seperation
Sympatric= genetic isolation of populations without geographical/physical seperation |
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Define population
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group of individuals of a single spieces
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Define Community
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Group of populations
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Define Ecoystem
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community and its environment
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why are there rarely moer than 4-6 levels in most food chains?
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Because the level of use efficiency between levels is only around 10% therefore after 6 levels there is no more energy left
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what is mutualism. give an example.
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Mutualism is where two species interact in a manner that is beneficial to both.
ant-acacia |
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Name one mechanical and one chemical defense that a plant uses against herbivory?
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Mechanical: waxy leaves, trichomes
Chemical: systemin hormone pathway, tannin |
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what is the main factor that shapes biomes
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climate
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what sort of plant is an epiphyte
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a plant that grows on another
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why is much of the prairie that used to surround stillwater now covered by trees?
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becasue we have stopped fires, which would usually kill trees and maintain grasses as the dominant vegetation
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Give one adaptation of desert plants
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stem succulent, cam photosynthesis, small leavels with thick waxy cuticles
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in broad terms what are the inputs and outputs of photosynthesis?
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Input: CO2, H20 and light
Output: Sugars, o2, H20 |
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given that we see plants as green, how efficiently are green wavelengths of light used in photosynthesis?
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Not very efficient, since most is either transmitted or reflected
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What are the three possible fates for the energy of an incoming photon when it hits the photosynthetic pigments inside the chloroplast?
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Fluorsence, resonance, reduction/oxidation
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what is the purpose of the antenna complex
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to transfer energy from the incoming photon to the reaction center frmo where it enters the electron transport chain
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what are the two high energy compounds produced during the light reactions of photosynthesis?
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ATP, NADPh
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