Gravitropism Study guides, Class notes & Summaries

Positive Phototropism correct answers bends toward the light. Negative Phototropism correct answers bends away from light Positive Gravitropism correct answers -in roots bends down. -auxin on bottom of root Negative Gravitropism correct answers -in stems grows upward -in roots: auxin on top of root. Auxin In Shoots correct answers Promotes Elongation Auxin in Roots correct answers Inhibits Elongation Which is stronger: gravitropism or phototropism? correct answers gravitrop...

Biology Praxis 5236 Questions and Answers Already Passed Which of the following terms indicates the ecological role that an organism plays in a community? Niche Which of the following characteristics distinguishes members of the domain Eukarya from members of the domains Archaea and Bacteria? The presence of a nuclear envelope Valine is typically classified as a hydrophobic amino acid because a valine molecule has which of the following types of side chains? Nonpolar A teacher ...

ALA Exam 3 Questions & Answers 2024/2025 What role might the statoliths (small, free-floating starch grains) play in gravitropism? - ANSWERSIt looks like they always tend to settle at the bottom of the cells. Therefore, they may press against the cell membrane, perhaps triggering a receptor in the membrane, indicating the relative orientation of the root. Do stems grow "up" in response to light or gravity? How would a stem respond if it were suddenly placed on its side (and illuminated...

Biology 5236 Practice Questions with Verified Solutions Which of the following terms indicates the ecological role that an organism plays in a community? Niche Which of the following characteristics distinguishes members of the domain Eukarya from members of the domains Archaea and Bacteria? The presence of a nuclear envelope Valine is typically classified as a hydrophobic amino acid because a valine molecule has which of the following types of side chains? Nonpolar A teacher asks students t...

What are plant growth factors and where are they produced? - Answer ● Chemicals that regulate plant growth response to directional stimuli. ● Produced in plant growing regions (apical meristems). ● Diffuse from cell to cell/ phloem mass transport. Explain why shoots show positive phototropism. - Answer 1. Indoleacetic acid (IAA) diffuses to shaded side of shoot tip. 2. As IAA diffuses down shaded side, it causes active transport of H+ ions into cell wall. 3. Disruption to H...

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: (...

Praxis Biology Content Knowledge 5236 Exam Questions And Answers (Updated And Verified) A teacher asks students to describe how the data collected in an experiment are typically used as evidence. Which of the following responses is the most accurate? A."The data are used to confirm an existing belief." B."The data are used as facts that cannot be questioned or criticized." C."The data are used to support or reject a hypothesis." D."The data are used to make a theory into a law." ...

BOT3015 Quiz 2 Review (UCF) 2024 Exam Answers 100% Correct What do roots do? - Answer- - Anchor plants into soil - Absorption of water and minerals - Store food or water - Other specialized functions What happens to an embryo's radicle upon germination? - Answer- Radicle grows out and develops into first root. Radicle may develop into thick taproot with thinner branch roots. OR, after radicle formation, adventitious roots may arise that develop into a fibrous root system What are adv...

AQA A Level Topic 6 Organisms and response Stimulus A change in an organism's surroundings that causes the organism to react Receptor Detect stimulus. Specific to one type of stimulus. Effector an organ or cell that acts in response to a stimulus. Stimulus response pathway Stimulus - receptor - coordinator - effector - response taxis Movement toward or away from a stimulus. Direction of response determined by direction of the stimulus. positive taxis negative taxis Photota...

Tropism Answer Plant movement by growth. Direction of response depends on direction of stimulus Phototropism Answer Tropic movement in response to light Gravitropism Answer Tropic movement in response to gravity Chemotropism Answer Tropic movement in response to a chemicsl Thigmotropism Answer Tropic movement in response to contact Hydrotropism Answer Tropic movement in response to water Taxes Answer The movement of an animal towards or away from stimulus from one direction ...