Positive phototropism - Study guides, Class notes & Summaries

Aqa a level Biology - Topic 6 - survival and response questions and answers well illustrated. What is a stimulus? - correct answer. A change in the environment of an organism What is a tactic response? - correct answer. Directional movement in response to a stimulus What is a kinetic response? - correct answer. Non directional random movement in response to a stimulus What is a positive and negative taxis? - correct answer. Positive taxis- organism moves tow...

ISA Certified Arborist Exam Questions with 100% Correct Answers guard cells - Pair of specialized cells that regulate the opening and closing of stomate due to the change in water pressure within cells. Functions of root system - Absorb and conduct water and minerals, anchor and support plant, storage of extra food and produce hormones. Tropism - Tendency of growth or variation of a plant in response to an external stimulus such as gravity or light. Geotropism - plant growth produced as ...

NCEA Level 3 Biology - Plant and Animal Responses Questions and Answers 2023 Tropism Plant movement by growth. Direction of response depends on direction of stimulus Phototropism Tropic movement in response to light Gravitropism Tropic movement in response to gravity Chemotropism Tropic movement in response to a chemicsl Thigmotropism Tropic movement in response to contact Hydrotropism Tropic movement in response to water Taxes The movement of an...

ISA Arborist Chapter 1 Questions and Answers Already Passed Abscission Zone Area at the base of the petiole where cellular break down leads to leaf and fruit drop. Absorbing root Fine,fibrous roots that take up water and minerals. Most absorbing roots are within the top 12 inches (30cm) of soil. Adventitious bud Bud arising from a place other than a leaf axil or shoot tip,usually as a result of hormonal triggers. Aerial root Aboveground roots. Usually adventitious in nature and sometimes havi...

1 BIOS 1108 MODULE 3 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Cell Signaling Pathway Correct Answer: "RaceCAR" - Reception of signaling molecule (ligand) to specfiic receptor - protein-to-protein Communication (transduction); ex: receptor-to-enzyme, kinase-totarget -signal Amplification typically with second messengers (cAMP, etc) -sgnal response nuances: tissue/cell-type specific responses, signal crosstalk Direct Signaling Correct Answer: communicati...

DAT EXAM STUDY verified A+ compound interest - 30 60 90 triangle 45 45 90 triangle - Solubitlity Rules - 1) group 1, NO3-, NH4+, ClO4-, C2H3O2- (acetate) soluble salt 2) Most Ag+, Pb2+, Hg2 (2+) salt insoluble (exept when paired with above). Plant Hormones (A CAGE) - Auxin / IAA (indoleacetic acid): plant growth, elongation, phototropism Cytokinin: stimulates cytokinesis Abscisic Acid (ABA): growth inhibitor. delay growth. Gibberellins: cell growth Ethylene: gas...

NLN Practice Exam 148 Questions with Answers 2023 1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower specific heat. conductive heat. heat of fusion. heat of vaporization. - CORRECT ANSWER specific heat. A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. U...

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: (...

Describe the events of fertilisation that occur after the acrosome reaction. -Membrane of sperm and egg cell fuse together -cortical granules release contents into zona pellucida -Zona pellucida thickens -Haploid nuclei fuse Explain how phospholipids form a cell surface membrane -Hydrophilic parts associate with water -Hydrophobic parts repel water -a bilayer forms with hydrophobic parts pointing in towards the centre of the bilayer Describe the role of the CFTR protein in e...

AP Biology Exam Question and Answers Verified 100% A+ 2024, With Rationale. The resting membrane potential depends on which of the following? I. Active transport II. Selective permeability III. Differential distribution of ions across the axonal membrane A. III only B. I and II only C. II and III only D. I, II, and III D The resting potential depends on active transport (the Na+K+-ATPase pump) and the selective permeability of the axon membrane to K+ than to Na+, which leads t...