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Chapter 23: Problem 77

What are the advantages to a plant of storing a food reserve underground? a. Food reserves are more nutritious underground. The soil conditions make these food reserves abundant. b. Food reserves underground are hidden from potential predators. The soil conditions make these food reserves abundant. c. Food reserves are more nutritious underground. The soil conditions such as moisture and temperature are less variable. d. Food reserves underground are hidden from potential predators. Soil conditions such as moisture and temperature are less variable.

Short Answer

Expert verified
d. Food reserves underground are hidden from potential predators. Soil conditions such as moisture and temperature are less variable.

Step by step solution

01

- Understand the Question

The question is asking for the advantages to a plant of storing food reserves underground. Review the four given options to see which advantages are correct.
02

- Review Nutritional Content

Evaluate the statements about food reserves being more nutritious underground in options a and c. Consider if the location of the reserves affects their nutritional value. Typically, nutrient content is not directly influenced by being underground.
03

- Consider Protection from Predators

Look at options b and d. Need to determine if storing food reserves underground helps in hiding them from potential predators. Plants often store food underground to keep it safe from animals that might eat the reserves.
04

- Evaluate Soil Conditions

Option b and d mention soil conditions such as moisture and temperature being regulated. Option a and c mention soil conditions making reserves abundant. Moisture and temperature stability ensures food reserves remain usable for the plant over time. This is a stronger argument.
05

- Choose the Most Comprehensive Answer

Option d includes both the benefits of hiding the reserves from predators and the advantages of stable soil conditions. These points align with known advantages of underground storage.

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Key Concepts

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

Plant Protection Mechanisms
Plants have developed various protection mechanisms to survive and thrive. One of these mechanisms is storing food reserves underground. By doing so, plants effectively hide their valuable nutrients from potential predators.
The underground storage helps shield the plant鈥檚 food reserves from herbivores and other animals that might otherwise consume them. Additionally, being underground also offers a physical barrier that many creatures find difficult to access.
This protective strategy ensures that plants can retain their essential nutrients, particularly during unfavorable conditions when regrowth or reproduction might be challenging. This mechanism also helps in preserving the food reserve for the plant to use during periods of drought or when above-ground conditions are harsh.
Soil Conditions for Plants
The soil provides unique conditions that are beneficial for storing food reserves. Underground, the temperature and moisture levels are typically more stable compared to the surface.
Stable soil conditions help in maintaining the viability of the stored nutrients. Unlike above-ground, where temperature fluctuations can be extreme and moisture levels can vary, underground storage ensures that the nutrients remain at a consistent state. For instance:
  • Temperature fluctuations are minimized, protecting the reserve from extreme heat or cold that could degrade it.
  • Humidity levels are relatively constant, preventing the reserves from drying out or becoming waterlogged.
These stable conditions are crucial for the long-term storage of nutrients, allowing the plant to access them whenever needed, especially in adverse environmental conditions.
Plant Nutrient Storage
Underground storage is a vital strategy for plants to manage their nutrient reserves. However, it's important to note that the nutrients stored underground are not inherently more nutritious because of their location.
Plants store starches, sugars, and other vital compounds in their underground parts, such as roots and tubers. During times of growth or when photosynthesis is not possible (like during winter or drought), these stored nutrients are mobilized to support the plant鈥檚 metabolic activities.
Moreover, underground storage allows plants to have a reservoir of energy-rich compounds that can be readily utilized during the growing season. This strategy is especially beneficial for perennial plants that need to survive through multiple growing seasons.

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Most popular questions from this chapter

A pulse of radioactive carbon dioxide (CO2) is provided to isolated leaves. In which tissue would you expect to see radioactive glucose appear first? a. in the cells of the mesophyll b. in the sieve elements of the phloem c. epidermis d. vessels of the xylem

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.

Which description correctly compares a tap root system with a fibrous root system? a. A tap root system, such as that of carrots, has a single main root that grows down. A fibrous root system, such as that of wheat, forms a dense network of roots that is closer to the soil surface. Fibrous root systems are found in monocots and tap root systems are found in dicots. b. A fibrous root system, such as that of a carrot, has a single main root that grows down. A taproot system, such as that of wheat, forms a dense network of roots that is closer to the soil surface. Fibrous root systems are found in monocots and tap root systems are found in dicots. c. A taproot system, such as that of rice, has a single main root that grows down. A fibrous root system, such as that of a carrot, forms a dense network of roots that is closer to the soil surface. Fibrous root systems are found in monocots and tap root systems are found in dicots. d. A taproot system, such as that of a carrot, has a single main root that grows down. A fibrous root system, such as that of wheat, forms a dense network of roots that is closer to the soil surface. Taproot systems are found in monocots and fibrous root systems are found in dicots.

Students are sketching diagrams of the shoot system of angiosperms for a plant anatomy class. These lists describe diagrams made by four students. Which diagram represents the shoot system incorrectly? a. leaves, stem, fruit, flowers b. stem, fruit, leaves, branches c. flowers, leaves, branches, stem d. stem, hair roots, leaves, flowers, branches

A time course is developed to follow the fate of the vascular bundles in the stem of dicots. Sections along the stem are fixed, stained, and observed under a microscope. What happens to the vascular bundles in the stem of a dicot as the plant matures? a. The vascular bundles join to form growth rings. b. The vascular bundles divide into primary xylem and primary phloem. c. The vascular bundles divide into secondary xylem and primary phloem. d. The vascular bundles die out.
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