/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 8 A branch of celery is soaked in ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 23: Problem 8

A branch of celery is soaked in a glass of water containing food dye. Soon, the tough fibers in celery branch are colored. What tissue do the tough fibers contain? a. dermal tissue b. xylem c. phloem d. ground tissue

Short Answer

Expert verified
b. xylem

Step by step solution

01

Understand the Function of the Tissues

First, understand the functions of the different tissues listed in the options: dermal tissue, xylem, phloem, and ground tissue.
02

Identify the Role of Xylem

Xylem is the tissue responsible for the transport of water and nutrients from the roots to the rest of the plant. It is typically involved in the movement of fluids within the plant.
03

Link the Dye Movement to Xylem

The dye in the water gets transported up the celery branch through capillary action, which occurs in the xylem tissue. This causes the tough fibers in the celery to become colored.
04

Conclusion

Based on the observation that the tough fibers in the celery are colored, and knowing that xylem tissue is responsible for fluid transport, the tough fibers contain xylem.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

plant tissue types
Plants have several types of tissues that serve different functions and are crucial for their growth and survival. The main types include:
  • Dermal tissue: This is the outer protective layer of the plant. It acts like the skin of the plant, protecting it from water loss, herbivores, and pathogens.
  • Ground tissue: This makes up most of the plant's body and serves various functions like storage, photosynthesis, and support. It includes tissues like parenchyma, collenchyma, and sclerenchyma.
  • Vascular tissue: Comprising xylem and phloem, this tissue is responsible for the transport of water, nutrients, and sugars throughout the plant.
Understanding the role and function of these tissue types helps explain how plants transport nutrients and maintain their structure. In the given exercise, identifying the xylem's role in water transport leads to the solution.
water transport in plants
Water transport in plants is a critical function that supports various physiological processes like photosynthesis, nutrient transport, and temperature regulation. Here are the essential steps involved:
  • Absorption by roots: Roots absorb water from the soil through root hairs, which increases the surface area.
  • Movement through Xylem: Water moves up from the roots to the rest of the plant through xylem vessels. This process is driven by transpiration (the evaporation of water from the leaves) and capillary action in the xylem.
  • Transpiration pull: As water evaporates from the leaf surfaces, it creates a negative pressure that pulls more water up from the roots.
The exercise demonstrates this concept with the celery experiment. When the celery stalk is placed in dye water, the dye travels up the xylem and colors the tough fibers, making the xylem's role in water transport evident.
xylem and phloem
Xylem and Phloem are the two main components of the plant鈥檚 vascular system, and each has distinct roles:
  • Xylem: This tissue is responsible for transporting water and dissolved minerals from the roots to every part of the plant. The movement in xylem is only upwards, facilitated by transpiration pull, root pressure, and capillary action. The xylem also provides structural support because of the lignin present in its walls.
  • Phloem: In contrast to xylem, phloem transports the organic nutrients (mainly sugar) produced during photosynthesis from the leaves to other parts of the plant. This process, known as translocation, can go both upwards and downwards, distributing energy for growth and storage.
In the exercise, the observation of dyed fibers in the celery confirms the presence and function of xylem in transporting water, highlighting the fundamental difference between the roles of xylem and phloem in plant physiology.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Plants lose water from their aboveground surfaces in the process of transpiration. Most of this water is lost from stomata. Excess loss of water has severe consequences and may be fatal for the plant. The table shows data collected on a sunny day. What is the best explanation for the transpiration rates leveling off and declining at temperature higher than \(27^{\circ} \mathrm{C} ?\) a. The plant ran out of water. b. The plant needs less water as temperature increases, so transpiration slows down to limit water uptake by the roots. c. Stomata close to conserve water, slowing down transpiration. d. The amount of water in the leaves decreases at high temperature and less is available for evaporation.

Seeds were germinated in the dark on three plates. Plate A was irradiated with a short pulse of red light; plate B was irradiated with a short pulse of red light followed by a pulse of far-red light; and plate C was the control and was maintained in the dark. After three days, the plates were scored for percentage of germination, as shown in this table. What conclusion can be drawn from the experiment? a. Darkness inhibits germination. b. Red light promotes germination. c. Far-red light promotes germination. d. Germination is independent from light irradiation.

Multiple leaves attached to the same node are fairly unusual. One example is found on the macadamia nut tree. The leaf arrangement in the macadamia tree is best characterized as ___. a. whorled b. opposite c. tripled d. alternate

Students observe several slides of tissue cross-sections under the microscope. They are asked to develop a key system to classify the slides as coming from either monocot or dicots. What key system should the students develop? a. In monocots, the vascular bundles form a distinct ring. In dicots, the vascular bundles are scattered in the ground tissue. b. In monocots, the vascular tissue forms a characteristic X shape in the center. In dicots, the phloem and xylem cells are scattered in the pith. c. In monocots, the vascular bundles are scattered in the ground tissue. In dicots the vascular bundles form a distinct ring. d. In monocot roots, the pith is absent or very small. In dicots, the pith is large and well developed.

During a severe drought, the soil becomes dry and its water potential decreases. Many plants will wilt in such an environment. Consider that the overall water potential for a system is represented by the equation: \Psisystem \(=\Psi\) total \(=\Psi_{S}+\Psi_{P}+\Psi_{g}+\Psi_{m}\) What is one reason that plants are unable to draw water from the soil? a. The water potential of the soil becomes lower than the water potential of the plants. b. The water potential of the soil becomes lower than the solute potential of the plants. c. The water potential of the soil becomes higher than the water potential of the plants. d. The solute potential of the soil becomes lower than the water potential of the plants.
See all solutions

Recommended explanations on Biology Textbooks

Cellular Energetics

Read Explanation

Cell Communication

Read Explanation

Ecosystems

Read Explanation

Cells

Read Explanation

Organ Systems

Read Explanation

Biological Organisms

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.