Xylem transport - Study guides, Class notes & Summaries

what is the precise composition of sporopollenin? - Its precise composition is unknown but it contains phenolic substances, fatty acids, and phenylpropanoids There are four key traits that land plants share only with charophyceans. what are they? - 1. structure of flagellated sperm, 2. rose shaped complexes for cellulose synthesis, 3. peroxisome enzymes (photorespiration), 4. formation of a phragmoplast what is the mesophyll? - The ground tissue of a leaf is sandwiched between the upper a...

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...

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

Many different substances enter and leave a cell by crossing its cell surface membrane. Describe how substances can cross a cell surface membrane. (5) - ANSWER1 (Simple / facilitated) diffusion from high to low concentration / down concentration gradient; 2 Small / non-polar / lipid-soluble molecules pass via phospholipids / bilayer; OR Large / polar / water-soluble molecules go through proteins; 3 Water moves by osmosis / from high water potential to low water potential / from less to mo...

GCSE COMBINED SCIENCE: SYNERGY 8465/1F Foundation Tier Paper 1 Life and Environmental Sciences Version: 1.0 Final G/LM/Jun23/E7 8465/1F (JUN2384651F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 1 Life and Environmental Sciences Tuesday 16 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use...

Brooks Biodiversity Unit 3 Exam Questions and Answers 100% Pass Plants Architecture - Answer- 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 - Answer- Epidermis, Mesophyll, and Vein (Vascular Bundle) Epidermis contains what? - Answer- - Cuticle - Guard cells with Stomata Epidermis - Answer- outermost cell layer of a plant body ...

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: (wax) excreted by epidermis Cuticle Waxy waterproof covering of a plant.Produced by the epidermis ...

Plants Architecture - correct answer-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 - correct answer-Epidermis, Mesophyll, and Vein (Vascular Bundle) Epidermis contains what? - correct answer-- Cuticle - Guard cells with Stomata Epidermis - correct answer-outermost cell layer of a plant body cutin: (wax) excreted by epider...

Brooks Biodiversity Unit 3 Quizzes with 100% Correct Answers Coevolution - Answer- adaptations go hand in hand, with one species evolving with the other Plant/Animal Hierarchy - Answer- Cells --> Tissues --> Organs 3 Plant Tissues - Answer- 1. Dermal ("Skin") 2. Vascular ("Veins") 3. Ground Tissue ("support tissue") Leaves - Answer- Responsible for collection and conservation of solar energy Main photosynthetic organ of most vascular plant Stems - Answer- Positioning and su...

Plants Architecture - ANSWER-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 - ANSWER-Epidermis, Mesophyll, and Vein (Vascular Bundle) Epidermis contains what? - ANSWER-- Cuticle - Guard cells with Stomata Epidermis - ANSWER-outermost cell layer of a plant body cutin: (wax) excreted by epidermis Cuticle - ANSWER-Waxy wat...