PLANTS 9 Biology Plant Anatomy Leaves: photosynthesis and transpiration Stem: support, transport of H2O and sugar Roots: anchor, and absorb H2O and minerals Flower: contains
reproductive parts of plant Roots Root hairs: increase surface area to increase absorption Nodules: symbiotic relationship with fungi/ bacteria for nitrogen
fixation Sometimes sugar storage: potato, carrot, turnip, onion, garlic Stems Vascular bundles: xylem (water transport) and phloem( sugar transport)
Cambium: sometimes bark, sometimes herbacious Leaves Waxy cuticle: waterproof Upper epidermis: chloroplasts Spongy mesophyll: H2O, sugar, O2 storage
Lower epidermis: stomata controlled by guard cells, open to release O2 (atmosphere), H2O (transpiration), take in CO2(photosynthesis) Angiosperms and Gymnosperms Angiosperm- flowering plants, have a coated
seed Gymnosperms- conifers (pine trees), naked seed Monocots and Dicots Monocots and Dicots differ in the following ways: Leaf venation
Vascular tissue arrangement Number of flower petals Root arrangement Meristematic Tissue Meristematic tissue: stem cell tissue of the plant
Apical meristematic tissue: helps stem grow up and roots grow down Lateral meristematic tissue: helps stem(trunk) increase in girth Ground Tissue Parenchyma: storage and photosynthesis
Collenchema: support and flexibility Sclerenchyma: all deadsupport and vessel elements wood pulp Plant Hormones Auxins- IAA, causes plants to grow to the light (phototropism) Gibberelin- helps with
plant growth and seed germination Ethylene- only gas hormone, helps with ripening Tropisms Phototropism- plants grow to light Gravitropism- plants
grow in response to gravity Thigmotropism- plants respond to touch (Venus Flytrap, tendrils on vines) Angiosperm Reproduction Female parts are the carpel: stigma, style and ovary
Male parts are the stamen: the filament and anther, pollen STEPS: 1. Pollen lands on the stigma 2. Nucleus in pollen creates a pollen tube to reach ovule 3. Pollen fertilizes ovule to create a zygote (seed)
Fertilization Self-fertilization decreases genetic fitness of plant species Pollination accomplished by insects, birds and animals
Zsolt Pécsvárady [email protected] Pécs Probability of DVT based on medical history and physical exmination Clinical condition Score • active cancer 1 • plegia, plaster in the near past 1 • immobility or maior operation in the near past 1 •...
Simple and Compound Interest Simple and Compound Interest Simple and Compound Interest You deposit $300 in an account that earns 8% simple interest. Find the final balance in the account after 3 years. COURSE 3 LESSON 6-8 l = p...
B. Grids. Dr. Hatem Elaydi, IUG, Spring 2017, Chapter 5. In large designs, notably those of structures, grids are used for horizontal positioning. The gridlineshave numbers and letters.All numbered gridlines are parallel with one another that is, they are straight,...
Bones of the Lower Limbs. The lower leg has two bones. Tibia—Shinbone; larger and medially oriented. Proximal end articulation. Medial and lateral condyles articulate with the femur to form the knee joint. Fibula—Thin and sticklike; lateral to the tibia. Has...
Principles to apply. Principles of design begin with CRAP. Contrast. Repetition. Alignment . Proximity. Contrast. By definition. Difference degrees of lightness and darkness on the page. Also, used as an organizational aid so that the reader can distinctly identify the...
There is a fairly large group of verbs in Spanish that undergo changes in their stem when conjugated in the present tense. These changes occur only in the first and second persons singular and third persons singular and plural.