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This is a leaf from Elodea, an aquatic plant. The arrows are pointing out chloroplasts. The field of view diameter is 75 µm. What is the approximate length of a cell?

This is a leaf from Elodea, an aquatic plant. The arrows are pointing out chloroplasts. The field of view diameter is 75 µm. What is the approximate length of a cell?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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150 µm

50 µm

### Title: Chloroplasts in Elodea Leaf Cells ### Introduction: This microscopic image displays a leaf from Elodea, an aquatic plant, used frequently in studies of cell biology due to its clear cellular structure and abundant chloroplasts. ### Key Features: - **Chloroplasts**: The arrows in the image point towards the chloroplasts, which are the green organelles inside the plant cells. Chloroplasts are vital for photosynthesis as they capture light energy to produce sugars from carbon dioxide and water. - **Cell Structure**: The image shows the distinct rectangular shape of plant cells arranged in a grid-like pattern. ### Measurement Details: - **Field of View Diameter**: The black circle in the image represents a field of view with a diameter of 75 micrometers (µm). - **Estimating Cell Size**: To approximate the length of a cell, you can use the scale provided by the field of view. The diameter (75 µm) can be visually compared to the length of individual cells. ### Practice Question: Using the visual scale where the field of view diameter is 75 µm, try to estimate the approximate length of one Elodea cell. ### How to Estimate: 1. **Observe the Proportion**: Note how many cells fit across the diameter of the field of view. 2. **Calculate the Length**: Based on your observation, divide the field of view diameter (75 µm) by the number of cells you counted. For educators and students alike, understanding these visual and spatial relationships is crucial for mastering microscopy techniques and gaining a deeper appreciation of cellular structures.
Transcribed Image Text:### Title: Chloroplasts in Elodea Leaf Cells ### Introduction: This microscopic image displays a leaf from Elodea, an aquatic plant, used frequently in studies of cell biology due to its clear cellular structure and abundant chloroplasts. ### Key Features: - **Chloroplasts**: The arrows in the image point towards the chloroplasts, which are the green organelles inside the plant cells. Chloroplasts are vital for photosynthesis as they capture light energy to produce sugars from carbon dioxide and water. - **Cell Structure**: The image shows the distinct rectangular shape of plant cells arranged in a grid-like pattern. ### Measurement Details: - **Field of View Diameter**: The black circle in the image represents a field of view with a diameter of 75 micrometers (µm). - **Estimating Cell Size**: To approximate the length of a cell, you can use the scale provided by the field of view. The diameter (75 µm) can be visually compared to the length of individual cells. ### Practice Question: Using the visual scale where the field of view diameter is 75 µm, try to estimate the approximate length of one Elodea cell. ### How to Estimate: 1. **Observe the Proportion**: Note how many cells fit across the diameter of the field of view. 2. **Calculate the Length**: Based on your observation, divide the field of view diameter (75 µm) by the number of cells you counted. For educators and students alike, understanding these visual and spatial relationships is crucial for mastering microscopy techniques and gaining a deeper appreciation of cellular structures.
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