Phloem Study guides, Class notes & Summaries

IB Biology 9.2 Latest Update Graded A+ Translocation occurs from ___ to ___ Source to sink Phloem tissue - found in stems, roots and leaves - Composed of sieve tubes which are composed of specialized sieve tube cells - Sieve tube cells are separated by sieve plates (perforated walls) - Sieve tube cells are associated with companion cells Translocation Transport of organic solutes in a plant Sources areas of plant where sugars and amino acids are in surplus and are loaded int...

101. Why do the side plates of an arborist block extend beyond the sheaves? a. to protect the hands of the arborist. b. to keep the line from slipping. c. to prevent abrasion of the line. encourage smooth passage of the line. CORRECT ANSWER c. to prevent abrasion of the line. 102. when looking at a cross section of a branch, which ring represents the most recent year of growth? a. the first ring inside the cambium b. the first ring inside the phloem c. the first ring outside the camb...

Independent variable - Value does not depend on another factor Dependent variable - Value depends on another factor Controlled variable - Kept the same throughout the experiment What are the two key tissues that allow plants to transport water or organic nutrients, respectively, over long distances? - Xylem - water and minerals from roots to shoots Phloem - transports sugars from photosynthesis to where they are needed In the root, plants need to take up more CO2 or O2? - More O2 Is the n...

4 major plant parts include - roots stems leaves reproductive parts 4 functions of the root system include - absorption anchorage conduction storage 2 kind of root systems found in plants are - fibrous root systems and taproot systems Fibrous root system - root system that consists of numerous multi-branched roots that are slender; no one root is more prominent than the other. Tap root system (more difficult to transplant) - root system that consists of one main root that gro...

WSU Biology 106 Exam 1 Questions and Answers Already Passed Most species extinction can be traced to what four major threats? Climate change, habitat destruction, over harvesting, and the introduction of species. Name three functions of the root? Anchors the plant, absorbs minerals and water, and stores organic nutrients. What part of the root system is responsible for absorbing the majority of minerals and water? The root hair. What two components create the stem? Internodes a...

Parenchyma cells - Play a role in storage, secrection, and photosynthesis in cells. Have thin and flexible primary walls, large central vacuole, lack secondary walls, photosynthesize Ground Tissue - Tissue system that makes up the majority of a plant What is ground tissue composed of? - Parenchyma, collenchyma, sclerenchyma Collenchyma cells - Provide flexible and mechanical support; found in stems and leaves, used for new plants. Lacking secondary walls. Strings on a celery stalk Sclerenc...

What are the two key tissues that allow plants to transport water or organic nutrients, respectively, over long distances? - Xylem - water and minerals from roots to shoots . Phloem - transports sugars from photosynthesis to where they are needed In the root, plants need to take up more CO2 or O2? - More O2 Is the need for CO2 and O2 in leaves the same when compared to roots? - The difference is because of what the plant needs at that certain spot. The CO2 is needed for photosynthesis to ma...

ARBORIST EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+ Meristems - -Sites of rapid cell division in the shoot tips and cambium Apical meristems - -Meristems located at the end of the shoots Apical dominance - -The tendency for terminal buds to inhibit the growth of lateral buds Leaves - -food factories Photosynthesis - -Combines carbon dioxide and water in a reaction driven by light to produce sugars. Oxygen is also a byproduct Chlorophyll - -The green pigment Transpiration - -the loss ...

Seasonal changes - Answer- moon orbits earth once per month Yearly Changes - Answer- earth orbits around the moon one time per year physical change - Answer- A change in a substance that does not change its identity chemical change - Answer- charastics change in state or phase transformation of energy examples - Answer- Chemical Energy is converted to Electrical Energy (stove), Kinetic Energy (car), Electricity (power plant), and Mechanical Energy (space shuttle). Electricity is conv...

Brooks Biodiversity Unit 3 Exam Questions and Correct Answers 2024 with complete solution. Plants Architecture Plant needs i. collection & conversion of solar energy -> leaves ii. positioning & support of leaves -> stems iii. anchorage & absorption -> roots iv. transport -> vascular system Leaf Structure Epidermis, Mesophyll, and Vein (Vascular Bundle) Epidermis contains what? - Cuticle - Guard cells with Stomata Epidermis outermost cell layer of a plant body cutin: (...