In a germinating seed, the downward growth of roots and upward growth of stems are the plant’s responses to gravity. Which statement best describes this phenomenon? * downward growth of roots – positive response to gravity ; upward growth of stems – negative response to gravity downward growth of roots – negative response to gravity ; upward growth of stems – positive response to gravity downward growth of roots – positive response to gravity ; upward growth of stems – positive response to gravity No answer downward growth of roots – negative response to gravity; upward growth of stems – negative response to gravity

In a germinating seed, the downward growth of roots and upward growth of stems are the plant’s responses to gravity. Which statement best describes this phenomenon? * downward growth of roots – positive response to gravity ; upward growth of stems – negative response to gravity downward growth of roots – negative response to gravity ; upward growth of stems – positive response to gravity downward growth of roots – positive response to gravity ; upward growth of stems – positive response to gravity No answer downward growth of roots – negative response to gravity; upward growth of stems – negative response to gravity

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter35: Stem Structure And Transport

Section: Chapter Questions

Problem 3TYU

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Similar questions

Match A, B, C, D,E with the following: -zone of division -apical meristem -zone of maturation -root cap -zone of elongation
Which of the following is NOT a function of a stem? absorbs water and nutrients supports the plant’s weight transports water and sugars holds the plant upright
Which of the following statements about gravity perception is FALSE? A. Statoliths are specialized amyloplasts B. Statoliths are found in statocytes C. Gravity is sensed from the root cap acropetally through the zone of division D. Columella cells sense gravity through statolith pressure on the endoplasmic reticulum E. Auxin is the main hormone involved in gravity response
Which of the following statements about age gradients within the plant body is FALSE? Select one: a. Age gradients within the plant body include an apical-basal gradient where the youngest cells are near the apices (tips of shoots and roots). b. Age gradients within the plant body reflect the plant cells’ lack of mobility due to their shared walls. c. Phloem is oldest toward the outermost cell layers of the tree trunk and xylem is oldest toward the innermost cell layers of a tree trunk. d. All of the statements are true. e. Age gradients within the plant cells include walls that are youngest immediately adjacent to the plasma membrane and progressively older toward the middle lamella.
Which event would occur when guard cells are filled with water? gases cannot diffuse into the plant opening of stomata diffusion of sugars into the sieve tube members closing of stomata gases cannot diffuse out of the plant
Which one of the following statements about root hairs is CORRECT? Select one: a. They are found in the zone of cell elongation and help the root to fix nitrogen. b.They are found in the root cap and help the root sense gravity. c.They are found in the zone of cell division of the root and help anchor the plant in the soil. d.They are found in the root apical meristem and help the root to absorb water. e.They are found in the zone of cell differentiation in the root. Which of the following best describes the route to fruit formation in flowering plants? Select one: a. 1) pollination, 2) double fertilization, 3) embryo develops, 4) ovary matures, 5) ovule matures. b. 1) pollination, 2) germination of pollen, 3) endosperm develops, 4) ovule develops. c. 1) pollination, 2) endosperm develops, 3) embryo develops, 4) ovule matures. d. 1) pollination, 2) fertilization, 3) embryo develops, 4) ovary matures. e.1) pollination, 2) fertilization, 3) germination of pollen, 4) ovule…
Which meristem is correctly matched with its location and a type of derivative cells? Answers are in the form: meristem --> location --> tissue a. procambium – between xylem and phloem – periderm b. ground meristem – root tip – primary xylem c. apical meristem – between xylem and phloem - ground d. protoderm – shoot tip – epidermis e. procambium – root tip – ground
Why is it that even if you put the newly germinated seed in an inverse position (roots above), the roots will find its way back to the ground?
Identify the following type of root system: Cogon, Onion, Corn, San Francisco, Cosmos, and Makahiya
The reiterative unit of the vegetative shoot consists of: A. Node, leaf and lateral root B. Internode, node, leaf and axillary buds C. Terminal bud, axillary bud, leaf and internode D. Node, leaf, axillary bud, leaf scar E. Internode, leaves, node, lateral root
Compare the following situations of seed germination of monggo seeds within five days: - watered everyday - watered every other day, and - never watered
Draw 1. ROOT TIP LONGITUDINAL CROSS SECTION – under medium power draw the whole tip. Label à Root cap, Zone of Cell Division, Zone of Elongation, Zone of Maturation, Apical Meristem. 2. ROOT CROSS SECTION – under medium power draw a pizza wedge to be able to view from the centre of the section out to the edge. Label à Epidermis, Endodermis, Cortex, Casparian Strip, Pericycle, and Vascular tissue 3. MONOCOT STEM CROSS SECTION – under high power focus the field of view on a vascular bundle and draw the vascular bundle and surrounding cells. Label à Xylem, Phloem, Vascular Bundle 4. 3 – YEAR OLD WOODY DICOT STEM CROSS SECTION – under low power draw a pizza wedge of the stem. Label à Primary xylem, Secondary xylem, Phloem, Cambium, Pith 5. LEAF CROSS SECTIONS –View and draw each of the cross sections under medium/high power. Label à Stomata, Vascular Bundle, Epidermis, Cuticle, Palisade Mesophyll, Spongy Mesophyll.