Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 29, Problem 7TY
Summary Introduction
Introduction:
Gravitropism is response of plant towards gravity wherein roots grow into the soil and shoots grow upwards away from the soil. This is because of amyloplasts that are specialized plastids that have starch granules and settle downward in response to gravity. It is found in shoots and root cap.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Positive thigmotropism is a response in plants in which they move and grow toward an object the plant comes into physical contact with , usually curling around the object. This response of the shoot system benefits the plant by allowing the plant to -
The winding of grape vine tendrils around a trellis support is an example of
Negative phototropism
Positive thigmotropism
thigmonasty
Negative gravitropism
A circadian rhythm
Stomata are openings on plants that allow for gas exchange.
True
False
Chapter 29 Solutions
Principles of Biology
Ch. 29.1 - Prob. 1BCCh. 29.1 - Prob. 1TYKCh. 29.2 - Prob. 1CCCh. 29.2 - Prob. 2CCCh. 29.2 - Prob. 1TYKCh. 29.2 - Prob. 2TYKCh. 29.3 - What kind of light does the active conformation of...Ch. 29.3 - Prob. 2CCCh. 29.3 - Imagine a garden that has been planted with...Ch. 29.3 - Prob. 3CC
Ch. 29.4 - Prob. 1CCCh. 29.4 - Prob. 1TYKCh. 29.5 - Prob. 1CCCh. 29.5 - In what way is systemic acquired resistance to...Ch. 29.5 - Prob. 1TYKCh. 29 - Prob. 1TYCh. 29 - Prob. 2TYCh. 29 - Prob. 3TYCh. 29 - Prob. 4TYCh. 29 - Prob. 5TYCh. 29 - Photoreceptor molecules allow plant cells to...Ch. 29 - Prob. 7TYCh. 29 - Prob. 8TYCh. 29 - Prob. 1CCQCh. 29 - Prob. 2CCQCh. 29 - Prob. 3CCQCh. 29 - Prob. 1CBQCh. 29 - How could you increase the resistance of a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Protects the plant and prevents it from drying out by means of a waxy Select match cuticle. Provides support and useful for food storage. -> Select match Thick walls allow them -> Select match to support the plant and also allow it to be flexible. The brain and spinal cord, which contains special cells called Select match neurones. Skeletal or striated Select match tissue connected to the skeleton to help with movement. Tissue found on the -> Select match surface of the skin.arrow_forwardTry to uproot dandelion and grass. ROOT CHARACTERISTICS MONOCOT SPECIMEN (NAME) DICOT SPECIMEN (NAME) TYPE OF ROOT SYSTEM PRESENCE OF PRIMARY ROOT PRESENCE OF LATERAL ROOTS PRESNCE OF ADVENTITIOUS ROOTSarrow_forwardShort-day (long-night) plants bloom only at night. use other environmental stimuli to trigger flowering. bloom after a certain length of continuous daylight. bloom only during the day. bloom after a certain length of continuous darkness.arrow_forward
- On a hot, dry day a plant closes its stomata thereby conserving water. Which plant hormone is responsible for the closing of the stomata? ethylene abscisic acid cytokinin auxin gibberellinarrow_forwardWhich 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 uprightarrow_forwardVernalization is a plant response to: Light Gravity Physical contact None of the above Plant epidermis secretes a waterproof substance called: Cuticle Wax Periderm covering Pectin Plant transpiration accounts for what % of atmospheric water vapor? 50% 90% 5% 75%arrow_forward
- Bud primordia are likely to develop into roots. always develop into new branches. are only found in secondary growth. develop into leaf primordia. can initiate new shoots.arrow_forwardA vascular bundle -is on the outer surface of a root. -contains xylem and phloem tissue. -is not found in leaves. -is very distinct in the apical meristem. -is usually scattered in the stem of a eudicot.arrow_forwardWhich of the following is not a function or characteristic of roots in plants? Question 8 options: Absorb minerals. Exhibit a negative gravitropism. Anchor the plant. Exhibit a positive gravitropism.arrow_forward
- What is the phenomenon wherein the plant grows toward the unidirectional light? Photoperiodism Phototropism Thigmonasty Photonastyarrow_forwardThe horsetails are special, in a way, due to their secondary xylem. Select the correct response: True Falsearrow_forwardLabel A, B, C and D as the following: -Xylem -Cortex -Phloem -Pitharrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
How do Plants Handle Stress?; Author: Alex Dainis;https://www.youtube.com/watch?v=TYsnveEHqec;License: Standard Youtube License