The effect of temperature on aerobic respiration of germinated pea seeds and on mealworm respiration

Term Papers 11 pages, words Materials and Methods The first experiment involved examining the effect of temperature on aerobic respiration of germinated pea seeds. The students testing the effect of temperature, will be divided into two groups.

The effect of temperature on aerobic respiration of germinated pea seeds and on mealworm respiration

Little activity occurs during dormancy periods as seeds wait for the right environmental conditions for growth to begin. Once germination starts, cellular respiration rates increase dramatically in order to provide needed materials for initial plant growth stages. Cellular respiration activities increase dramatically when seeds begin to germinate.

Cellular Respiration Functions Cellular respiration processes provide a means for cells to convert existing nutrient materials into energy. During dormancy periods, plant seeds respire just enough to maintain food, or nutrient supplies within a specialized seed layer known as the endosperm. Within flowering plants, endosperm structures are the product of a double fertilization process that takes place when a plant ovule, or ovary, is first fertilized.

The start of germination places substantial energy demands on the seed as plant growth processes take shape.

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As a result, cellular respiration rates increase to accommodate the cell-building activities required to break open the seed and produce the initial root and stem structures. Cellular Respiration Triggers Plant seeds originate from flowers, fruits, green plants and trees that grow within a myriad of environmental conditions.

Not surprisingly, each seed type seeks out certain environmental triggers that prompt the start of germination processes. According to Cornell University, environmental triggers may appear as increased levels of nutrients in the soil, changes in soil temperature, increased rainfall amounts or increases in the amount and quality of light.

Once the needed conditions are met, seeds begin to increase their water-absorption rates, which marks the start of germination. Increases in water absorption enable seeds to mobilize food reserves stored within endosperm layers. Cellular Respiration Process Germinating seeds carry out cellular respiration processes in much the same way as plant and animal cells do.

Cellular respiration takes place in three stages starting with glycolysis. The glycolysis stage uses glucose molecules to produce two units of energy or ATP adenosine triphosphate molecules along with other chemical materials. The Krebs Cycle makes up the second stage of cellular respiration.

This stage uses the products from glycolysis to produce two more energy units and transforms the chemicals left over from glycolysis into hydrogen-carrying molecules.

This stage combines the energy contained inside the hydrogen molecules from the Krebs Cycle with oxygen to create 38 ATP molecules.


This three-stage process repeats over and over again within each individual plant cell. The ATP molecules produced by cellular respiration provide the energy for seed germination to begin and fuels the cell-building activities that ultimately form the plant body.Cellular respiration is the process by which all eukaryotic organisms--organisms with complex cells--produce usable cellular energy from food and oxygen.

Peas are seeds that begin respiring when they germinate, and temperature can have an impact on the rate of pea respiration. 8 Results Effect of Temperature on Aerobic Respiration of Germinated Garden Pea from LIFE at University of Nebraska, Lincoln. Find Study Resources.

Main Menu; Results Effect of Temperature on Aerobic Respiration of Germinated Garden Pea Seeds (Pisum sativum) o Our data (Table 1) %(1). What Is Cellular Respiration in Germinating Seeds?

The Effects of Temperature and Germination on Peas Cellular Respiration | stary kas -

A: Quick Answer. one that involves measuring changes in temperature over time and anoth Full Answer > Filed Under: Meaning of Germinated Seeds; Cellular Respiration in Germinating Seeds; Cellular Respiration Germinating Peas;. The vertical axis represents the volume, in milliliters, of water that was drawn into the pipet as a result of intake of oxygen by the peas while they were carrying out respiration.

This graph shows the effect of temperature on the respiration of peas when put in a water surrounding at degrees celsius. 7. Explain the effect of germination versus non germination on pea seed respiration.

Germination of peas has an obvious effect of the cellular respiration of the peas and only becomes more visible when put next to non-germinated peas. Germinated peas are the peas that have a lot of cellular respiration and consume a lot of oxygen.

The effect of temperature on aerobic respiration of germinated pea seeds and on mealworm respiration

´╗┐Cellular Respiration Purpose The purpose of this experiment was to determine the effect of body mass and temperature on the rate of respiration in the mouse Hypothesis When the temperature is reduced, cellular respiration will increase.

Lab 5 Cellular Respiration by Kris Layher -