Geotropism - Study guides, Class notes & Summaries

What does abiotic mean? - Non-living What does biotic mean? - living What is the definition of tropism? - Growth response to a stimulus What are some examples of an abiotic stimuli? - Light, water, gravity What are some examples of biotic stimuli? - touch, chemicals What is phototropism? - A plant's response to light What is geotropism? - a plant's response to gravity What is hydrotropism? - A plant's response to water/moisture What is thigmotropism? - a plant's response to touch Wh...

AQA A Level Biology - Topic 6 - Survival And Response What is a stimulus? A change in the environment of an organism What is a tactic response? What is a kinetic response? Directional movement in response to a stimulus Non directional random movement in response to a stimulus What is a positive and negative taxis? Positive taxis- organism moves towards stimulus Negative taxis - organism moves away from stimulus What Are receptors? different types What are effec...

Auxin is a plant hormone produced in the shoot tip. Auxin causes cell elongation and travels down the stem from the tip. Auxin is destroyed by sunlight. Explain how this leads to positive phototropism in the plant. Correct Answer Auxin is broken down on the sunny side of the plant. Cells on the shaded side will elongate due to auxin, causing curvature of the stem so that the plant grows towards the light. Ivy plants often use walls or other plants as a support when growing. State the type of ...

What does abiotic mean? - correct answer Non-living What does biotic mean? - correct answer living What is the definition of tropism? - correct answer Growth response to a stimulus What are some examples of an abiotic stimuli? - correct answer Light, water, gravity What are some examples of biotic stimuli? - correct answer ...

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 ...

coincise notes on plant responses and hormones, in bullet points to summarise processes of seed germination, antifreezing, leaf abscission, stomatal closure, geotropism and phototropism, apical dominance, plant defences

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...

Biology Campbell Chapter 39 Test Bank Non-random mutations. - ANSWER All of the following may function in signal transduction in plants except A.) calcium ions. B) non-random mutations. C) receptor proteins. D) phytochrome. E) second messengers. activates defences throughout the plant before infection spreads. - ANSWER In systemic acquired resistance, salicylic acid probably by producing heat-shock proteins, which may protect the plants’ proteins from denaturing - ANSWER How may...

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...

ISA Arborist Certification Study Guide Chapter 1 Questions and Answers 100% Pass Sites of rapid cell division in the shoot tips, root tips, and cambium are called ____________. Meristems Meristems located at the end of the shoots are called primary or __________ meristems. Apical The tendency for terminal buds to inhibit the growth of lateral buds is called __________. Apical dominance The "food factories" of trees are the _________. Leaves The procress of ___________ combines carbon diox...