Experiment Report: Mung Bean Sprout Growth

Categories: Biology

Report, Pages 3 (576 words)

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Abstract

In this experiment, we investigated the growth of mung bean sprouts in different environmental conditions, specifically in light and darkness. We hypothesized that mung bean sprouts grown in light would be taller than those grown in the dark. The experiment involved planting mung bean seeds in bottles filled with wet paper towel shreds and recording their growth over a week. Our observations and data analysis provided insights into how light affects the growth of these seedlings.

Introduction

The growth of plants, including mung bean sprouts, is influenced by various environmental factors, with light being a critical determinant.

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In this experiment, we aimed to investigate the impact of light on the growth of mung bean sprouts. We hypothesized that exposure to light would result in taller sprouts compared to those grown in darkness.

Materials and Methods

The following materials were used in the experiment:

Bottles
Paper towels
Mung bean seeds
Water

The experimental procedure was as follows:

Shred a large amount of paper towel into quarter-sized pieces.
Fill each bottle with the paper towel shreds until they are about one-sixth of the way full.
Slowly and carefully fill each bottle with water until each piece of paper towel is wet, ensuring they do not clump together.
Place at least ten mung bean seeds in each bottle and cap the top.
Place one bottle in an entirely dark environment and the other in a generally light environment.
After a week, gather the two bottles and remove the mung bean sprouts from each bottle.
Record the height of each mung bean sprout and calculate the average height of the sprouts that grew in the dark environment and the average height of the sprouts that grew in the light environment.

Hypothesis

We hypothesized that the mung bean sprouts that grew in the light would be taller than the mung bean sprouts that grew in the dark.

Observations

The mung bean sprouts that grew in the dark did not produce any leaves.
The stems of the mung sprouts that grew in the dark environment were of a white/yellow color, while the stems of the mung bean sprouts that grew in the light environment were of a green color.
The mung bean sprouts that grew in the dark were crisper in texture than the mung bean sprouts that grew in the light.

Data

My Data

Plant #	Height (cm)
1	12
2	5.7
3	11.3
4	11.9
5	9.8
6	7.9
7	12.1
8	3.8
9	10.5
10	8

Average Height: 9.3 cm

Class Data

Height (cm)	Light	Dark
8.3	8.6
8.5	2	1.2
8.4	10.5
6.3	2.1
7.4	10.5
8	21.3
6.9	8.9
4.3	13.3

Average Height (Light): 6.7 cm

Average Height (Dark): 9.0 cm

Conclusion

The data from the experiment disproves the hypothesis.

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Contrary to our initial expectation, the average height of the mung bean sprouts that grew in the dark environment was greater than the average height of those that grew in the light. The seedlings in the dark environment grew taller as they expended their energy to reach a light source. However, despite their increased height, the mung bean sprouts in the dark were significantly weaker compared to those in the light environment.

Possible sources of error include wetting the paper towels with alcohol instead of water and inadequate water volume in the bottles.

Recommendations

For future experiments, it is advisable to ensure accurate wetting of paper towels with water, as using alcohol may have affected the growth of seedlings. Additionally, maintaining consistent water levels in the bottles is crucial for valid comparisons.

Overall, this experiment provides valuable insights into the influence of light on plant growth and highlights the need for careful control of experimental variables.

Experiment Report: Mung Bean Sprout Growth. (2020, Jun 02). Retrieved from https://studymoose.com/document/mung-bean-lab-report-examining-effect-light-growth-new