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Chapter 23: Problem 26

One of the major concepts of biology is that form follows function. If that is so, what can be deduced from the shape and location of the root cap? a. It provides protection to the root tip. b. It absorbs water and minerals. c. It acts as a storage tissue. d. It replicates actively to elongate the root.

Short Answer

Expert verified
The correct answer is a.

Step by step solution

01

Understanding the Function of the Root Cap

The root cap is a structure located at the tip of a plant root. Its primary function is to protect the delicate root tip as it pushes through the soil.
02

Evaluating Option a

Consider the statement: 'It provides protection to the root tip.' This aligns with the known function of the root cap. Therefore, option a is a correct description of the root cap's function.
03

Evaluating Option b

Consider the statement: 'It absorbs water and minerals.' The root cap primarily protects the root tip rather than absorbing water and minerals. Absorption is mainly the function of root hairs.
04

Evaluating Option c

Consider the statement: 'It acts as a storage tissue.' The root cap does not function in storage; instead, it protects the root tip. Storage typically occurs in other parts of the root.
05

Evaluating Option d

Consider the statement: 'It replicates actively to elongate the root.' The root cap does not play a direct role in elongation. It mainly serves as a protective structure.
06

Choosing the Correct Answer

Based on the evaluation of options a, b, c, and d, the correct answer is option a: 'It provides protection to the root tip.'

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Key Concepts

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

Plant Root Structure
Understanding the basic structure of plant roots is essential to grasp their functions. Roots are crucial for a plant鈥檚 survival and growth. They anchor the plant into the soil and help absorb water and nutrients. However, the root system is more complex and consists of several parts:
  • Root Cap: Protects the growing tip.
  • Root Apical Meristem: Region of active cell division.
  • Zone of Elongation: Cells stretch and lengthen here.
  • Zone of Maturation: Cells differentiate and mature.
Each part plays a specialized role, working together to ensure the plant鈥檚 growth and nutrient uptake.
Root Cap Protection
The root cap is a small, but vital structure at the very tip of the root. It protects the delicate apical meristem, which is responsible for root growth. When the root grows, it pushes through tough soil particles. The root cap secretes a slimy substance that helps to lubricate the path of the root. This reduces damage to the root tip.
Additionally, the cells on the outer layer of the root cap continuously slough off. This provides a sacrificial layer that shields the more delicate cells beneath. The root cap also plays a role in gravity perception, helping the root grow downward, anchoring the plant firmly.
Plant Anatomy
The anatomy of a plant is specialized and functionally diverse. Besides roots, other major parts include stems, leaves, flowers, and fruits. Each organ has distinct structures and purposes:
  • Stems: Support and transport nutrients.
  • Leaves: Conduct photosynthesis to produce food.
  • Flowers: Reproductive structures that ensure propagation.
  • Fruits: Protect seeds and aid in their dispersal.
Understanding plant anatomy helps us appreciate how each part contributes to the plant's overall health and viability. Together, these components work synchronously to support life and ensure the propagation of plant species.

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Most popular questions from this chapter

Which statements list two advantages of a taproot? a. It anchors the plant, so that it is not easily uprooted by predators or wind. It is a sink for proteins that is protected from herbivores by being underground. b. It anchors the plant, so that it is not easily uprooted by predators or wind. It is a source of starches that is protected from herbivores by being underground. c. It anchors the plant, so that it cannot be uprooted by predators or wind. It is a sink for starches that is protected from herbivores by being underground. d. It anchors the plant, so that it is not easily uprooted by predators or wind. It is a sink for starches that is protected from herbivores by being underground.

Which adaptation is most likely to be found in a desert environment? a. broad leaves to capture sunlight b. spines instead of leaves c. needle-like leaves d. wide, flat leaves that can float

The dermal tissue of a plant provides __ for the plant. a. transport of water b. transport of minerals c. support d. protection

What are the functions of stomata and guard cells, and what would happen to a plant if these cells did not function correctly? a. Guard cells allow carbon dioxide to enter and exit the plant. Stomata regulate the opening and closing of guard cells. If the cells didn鈥檛 function, photosynthesis and transpiration would cease, which would interfere with the necessary continuous flow of water upward from roots to leaves. b. Stomata allow oxygen to enter and exit the plant. Guard cells regulate the opening and closing of stomata. If the cells didn鈥檛 function, photosynthesis would continue but transpiration would cease, which would interfere with the necessary continuous flow of water upward from roots to leaves. c. Guard cells allow carbon dioxide to enter and exit the plant. Stomata regulate the opening and closing of guard cells. Transpiration and in turn, photosynthesis would not occur which is necessary to maintain a continuous flow of water upwards from the roots to the leaves. d. Stomata allow gases to enter and exit the plant. Guard cells regulate the opening and closing of stomata. Photosynthesis and, in turn, transpiration, would not occur which is necessary to maintain a continuous flow of water upwards from the roots to the leaves.

Modified stems give an advantage to plants. What advantage do rhizomes, stolons, and runners provide? What advantages do corms, tubers, and bulbs provide? a. Rhizomes, stolons and runners give rise to new plants that are the clones of the parents and they store food. Corms, tubers, and bulbs can also produce new plants. b. Rhizomes, stolons, and runners give rise to new plants that are the different from the parents. Corms, tubers, and bulbs can also produce new plants as well as store food. c. Rhizomes, stolons and runners give rise to new plants that are the clones of the parents. Corms, tubers, and bulbs can also produce new plants as well as store food. d. Rhizomes, stolons and runners give rise to new plants that are similar to the parents but show genetic variability. Corms, tubers, and bulbs can also produce new plants as well as store food.
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