BIO#5

• witch of the following is a characteristic of Bryophyta(mosses) ?

  seeds, flowers, rhizoids
• you examined a plant and noticed that there is no vascular tissue, so you concluded that it is from.......

  Bryophyta (mosses)
• Hepatophyta (liverworts) belong to......

  nonvascular plants
• which of the following plants doesn't have transport tissue ?

  Conifers, Ginkgophta, Bryophyta (mosses), Cycads
• lycophyte(spike/club mosses) and pterophyte (ferns) are vascular....

  seedless plants
• which of the following has xylem and phloem and reproduce by spores ?

  bryophyta (mosses), pterophyta (ferns), cycads
• which of the following plants is seedless vascular plant ?

  bryophyta (mosses), pterophyta (ferns), anthocerophyta (hornworts)
• Seedless nonvascular plants:

  • Mosses (Bryophyta): Do not have true leaves. Instead they have a leaflike structure only one cell thick. Some species have cuticles and most have stomata.
  • Mosses use structure called: rhizoids to anchor themselves to soil, rocks, or tree trunks.
  • Mosses are often the first plants to grow on bare land. They can survive in deserts and tundras by remaining dormant unit water is available
• Seedless non =vascular plants:

  • Liverworts (Hepatophyta): Live in damp environments. They gat moisture from the soil.
  • There are two basic forms: thallose and leafy. The thallose liverworts look like lobes of a liver and give the group its name. Leafy liverworts have stemlike and leaflike structures.
• Seedless nonvascular plants:

  • Hornwarts (Anthocerophyta): Found in tropical forests and along streams all over the world.
  • The main plant body of a hornwort is flat and lobelike.
  • The name hornwort refers to the long spore like producing structures that look like horns.
• Seedless nonvascular plants:

  • The Ferna(Pterophyta). The Club/Spike mosses (Lycophyta): These plants need water to reproduce, but their vascular system allows them to grow higher above the ground and get materials firm the soil.
• Seedless nonvascular plants:

  • Cycadophyta (cycads): one of the three living phyla of gymnosperms that are Cycadophyta (cycad), Ginkgophyta (Ginkgo biloba) and Coniferophyta (conifers).
  • Gymnosperms: a seed plant whose seeds are not inside the fruit.
  • Angiosperms: a seed plant that has seeds enclosed in some type of fruit.
  • Flowering Plants (Anthophyta): Angiosperms belongs to a phylum Anthophyta/BioPills.
  • Google meaning : comprising flowering plants that produce seeds enclosed in an ovary.
• Which of the following plants is from Pterophyta ?


  Junipe, Orange, Pine, Fern
• Fern sporophyte forms a stem underground called...........

  rhizome (a thick underground stem that stores food).
• Which of the following is vascular seeded plant ?

  Liverworts, Mosses, Club mosses, Cycads
• which of the following plants have needlelike or scale like leaves ?

  gentophytes, conifres, flowering plants, cycads
• A.............plants life spans two years

  Biennial
• Lifespans:

  • There are three basic types of lifespans occur in flowering plants.
  • Annuals: grow from a seed , produce flowers and die in one year, EX: corn, lettuce and some garden flowers are annuals.
• Lifespans:

  • Biennials: take two years to complete a life cycle. During the first year the plant produces a short stem, leaves that grow close to the ground and an underground food reserve.
  • In second year, the food reserves are used to produce a taller stem, leaves, flowers and seeds, EX: carrots
• Lifespans:

  • Perennials: Live for more than two years. Most woody plants, such as some grasses, die at the end of the fall and grow back in the spring.
• .............have seeds that are part of the fruit.

  Angiosperms
• Plant cells have............but animals v=cells don't have it.

  Chloroplast
• Which of the following cells undergo photosynthesis ?

  Collenchyma, Parenchyma, Sclerenchyma, Root hair
• Ground Tissue Types:


  :)

  
• Ground Tissue Type

  
• What is the function of Sclerenchyma cells in plants ?

  Support
• stone cells is a type of........cell

  Sclerenchyma
• which of the following plant cell can't divide ?

  Parenchyma, Collenchyma, Sclerenchyma, Meristemic
• The cause if the growth of grass after mowing or cutting the tips is......

  Intercalary meristems
• • The 3 main tissues involved in plant growth and regrowth are: Apical meristem.
  • Intercalary meristem in leaf bases.
  • Lateral meristem/Tillers(also called shoots), rhizomes and stolons and buds.
  • Grasses have stems that can grow horizontally. Rhizomes and stolons are elongated and horizontal stems.
• What is the benefit of xylem and phloem ?

  Water and food transportation
• • The vascular system allows for the transport of water, minerals and sugars.
  • Water and dissolved minerals move through xylem.
  • Phloem carries sugar form the photosynthesis throughout the plant.
• which vascular tissue carries food to plants :

  Phloem
• A hormone that causes the apical dominance phenomena in plants is.........

  Auxin
• Hormone

  Chemical messenger produced in one part of an organism that affects the activity of cells in another part
• Auxins

  Make plant cells in the apical meristem or growing tip become longer, causing the main stem to grow upwards
• Auxins

  Also control some forms of tropism, which is the movement of a plant in response to an environmental stimulus
• Gibberellins

  Produce big changes in size, end seed dormancy, start germination and help young seedlings grow quickly
• Gibberellins

  Are also responsible for the large size of many fruits and fast upwards growth of some flower stalks
• Ethylene

  Produced by fruits and causes them to ripen