/*! 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 79 Samples of leaves from monocots ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 23: Problem 79

Samples of leaves from monocots and dicots are piled on the table in a laboratory and students are sorting the leaves. What information will help them know which leaves to identify as monocots? a. Bulliform cells are usually absent from monocots whereas they are present on the upper epidermis of dicot leaves. b. Monocots have leaves with parallel venation and dicot leaves have reticulate, net-like venation. c. Dorsiventral symmetry is observed in monocot leaves whereas isobilateral symmetry is observed in dicot leaves. d. Monocots have leaves with reticulate, net-like venation and dicot leaves have parallel venation.

Short Answer

Expert verified
Option B is correct; monocots have leaves with parallel venation.

Step by step solution

01

Understand the Question

The task requires identifying the feature that can help determine if a leaf is from a monocot plant.
02

Analyze the Options

Review each provided option to see if it accurately describes a characteristic of monocot leaves.
03

Examine Option A

Option A states that bulliform cells are usually absent from monocots. This is factually incorrect as bulliform cells are typically found in monocot leaves.
04

Examine Option B

Option B states that monocots have leaves with parallel venation and dicot leaves have reticulate, net-like venation. This is correct. Monocots do indeed have parallel venation.
05

Examine Option C

Option C states that dorsiventral symmetry is observed in monocot leaves, which is incorrect. Dorsiventral symmetry is usually seen in dicot leaves. Monocot leaves exhibit isobilateral symmetry.
06

Examine Option D

Option D states that monocot leaves have reticulate, net-like venation while dicot leaves have parallel venation. This is incorrect as it actually reverses the true description of venation for monocots and dicots.
07

Select the Correct Answer

Based on the analysis, Option B accurately describes the venation in monocot leaves.

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.

monocot and dicot comparison
Understanding the differences between monocots and dicots is crucial for identifying various plant species. Monocots and dicots are the two major groups of angiosperms or flowering plants. The most apparent difference lies in their seed structure. Monocots have one cotyledon or seed leaf, while dicots have two.
When looking at leaves, each group has distinct characteristics:
  • Monocot leaves: Typically have parallel venation, meaning the veins run parallel to each other.
  • Dicot leaves: Usually exhibit reticulate venation, forming a network of interconnecting veins.
Additionally, monocots and dicots differ in other structural aspects:
  • Stems: Monocots have scattered vascular bundles, whereas dicots show a ring arrangement.
  • Flowers: Monocot flowers are usually in multiples of three. Dicot flowers typically come in multiples of four or five.
  • Roots: Monocots usually have fibrous root systems, whereas dicots often develop a taproot system.
These differences help in identifying and classifying various flowering plants.
leaf venation patterns
Leaf venation patterns are essential for identifying plant species and understanding their functionality. Venation refers to the arrangement of veins in a leaf.
There are primarily two types of venation patterns in flowering plants
  • Parallel venation: Found in monocots, veins run parallel to one another from the base to the tip of the leaf. This is a hallmark of monocotyledonous plants.
  • Reticulate venation: Common in dicots, where veins form a mesh-like network across the leaf. This helps in distinguishing dicot leaves from monocot leaves.
These venation patterns not only aid in identification but also have functional significance. For example, parallel venation offers flexibility and strength, supporting long, narrow leaves to avoid tearing. Reticulate venation provides structural support and efficient transport of nutrients and water.
Observing these patterns is a simple yet effective way to differentiate between monocot and dicot leaves, even for high school biology students.
plant anatomy for high school biology
Plant anatomy involves studying the various parts and structures of plants. It's fundamental for understanding how plants grow, reproduce, and adapt to their environments. For high school biology, focusing on key structures is essential:
  • Roots: Anchor the plant and absorb water and nutrients from the soil. Monocots typically have a fibrous root system, while dicots have a primary taproot with lateral branches.
  • Stems: Support the plant and transport nutrients and water. Monocot stems contain scattered vascular bundles, while dicot stems have these bundles arranged in a ring.
  • Leaves: The site of photosynthesis and gas exchange. Monocot leaves usually have parallel venation, whereas dicot leaves show a reticulate venation pattern.
  • Flowers: The reproductive organs of the plant. Monocots typically have flower parts in multiples of three, while dicots have them in multiples of four or five.
Understanding these anatomical differences helps students accurately identify plants and comprehend their biological functions, aiding in broader knowledge about plant diversity and ecosystems.

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

Gravitropism is plant growth in response to gravity. A dahlia stem was toppled by the wind and is lying lies on the ground. After a few days, you would likely notice that ________ . a. the stem is growing by curving toward the roots b. the stem is growing by trailing on the ground c. the stem is growing by curving upward d. the plant is wilting

A plant biologist is examining sections of plant tissue under the microscope. The slides are not labeled and the biologist is interested in simple tissues. Which of the following slides is a sample of a simple tissue? a. cells dividing rapidly in a stem b. root cambium showing different types of cells c. parenchyma showing only one type of cell d. leaf displaying the vascular bundle where diverse types of cells are involved in transport

Stomata close in response to bacterial infection. This response is a defense mechanism because it ________ , and the hormone involved is ________ . a. restricts the entry of O2; gibberellin b. restricts the entry of CO2; abscisic acid c. prevents further entry of pathogens; auxin d. prevents further entry of pathogens; abscisic acid

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.

A botanist compares the number of stomata between two plants. One plant, a eucalyptus, has stomata equally distributed on both sides of the leaf. The other plant has most of its stomata on the underside of the leaf. What does the positioning of the stomata indicate about which leaf surfaces on the two plants receive light in their natural environment? a. The first plant receives light only on the upper surface of the leaves whereas the leaves of the second plant are equally exposed to sunlight. b. The first plant receives light only on the lower surface whereas the second plant receives light only on the upper surface. c. The first plant receives light only on the upper surface whereas the second plant receives light only on the lower surface. d. The first plant has leaves that are equally exposed to sunlight whereas the second plant receives light only on the upper surface.
See all solutions

Recommended explanations on Biology Textbooks

Heredity

Read Explanation

Reproduction

Read Explanation

Communicable Diseases

Read Explanation

Control of Gene Expression

Read Explanation

Bioenergetics

Read Explanation

Cells

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.