Hydrate Experiment

These not only affect the plant in their specific ways, they also have different effects when they are present in certain ratios with the other chemicals. Plant hormones maintain a delicate balance, and this experiment serves to observe that balance (Campbell and Reese, 2008).

Each section we added ( ml) of liquids. The null hypothesis that the growth of plants will be at its optimal value with tap water having a neutral Ph. The alternative hypothesis that there will be no change on the growth of plants in different liquids. Introduction:

Introduction: The purpose of this lab will be to determine the percent water in an unknown hydrate, determine the moles of water present in each mole of the unknown substance, and to use the molecular mass to find the empirical formula of a hydrate. In this lab and unknown hydrate will be heated two separate times over a Bunsen burner to remove as much water from the substance as possible, before and after heating the crucible the masses will be calculated and recorded for future reference. To participate in this lab it is important to know he formulas that will be worked with. The formula of the hydrate that will be used, Copper II Sulfate, is CuSo4 • 5H2O. Along with this, the formula used to calculate the percent water in the hydrate will

affect the rate of almost all chemical reactions that take place in living organisms. (Lab #4:

might affect the fitness of each variant. In other words which factors might increase plant growth, survival,

In this lab, four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light, capture light, and use light as energy for reproduction and growth, by photosynthesis. The control in this experiment was spinach, which was tested before any of the other plants were. The other plants that were tested were English Ivy, C4 Plant, and a multicolored plant. Each type of leaf was tested in a sodium bicarbonate solution and a solution of distilled water. It will be shown in the discussion whether the hypothesis made was correct or incorrect. It will be shown in the discussion what could have

What is the relationship between the increase in light intensity and the photosynthetic rate in leaves from a corn plant? How does this relationship compare with what you observed for tomato plants?

Hypothesis: The duckweed will show a small growth increase with very low levels of salinity and then will show a decline in growth rate as the levels of salinity increase.

This lab deals with the transpiration rates in plants, specifically a tomato plant that was used for this experiment. Transpiration is when water leaves a plant through the stomata as water vapor while the stomata is capturing CO2 for photosynthesis. This experiment used three different scenarios: a tomato plant with a light shining on it, a tomato plant with wind blowing on it from a fan, and lastly a tomato plant with nothing acting on it. The hypothesis is that the rate of transpiration will be fastest with light, faster with wind, and slow with the control. This hypothesis was rejected because the rate of transpiration is as follows with the wind having the fastest rate: with light the rate was 7.60 mm/min, with wind 10.20 mm/min, and control 4.33 mm/min. The cause of the wind having a faster transpiration rate than the light may have been due to the surface area of the leaves on the tomato plants. The surface area of the leaves for the wind experiment is 8,124mm2, and for the light is 7,740mm2.By doing this transpiration experiment it helps one to see what happens in plants daily and understand why it happens.

How does elevated Tsoil and elevated CO2 affect the physiological responses of shade-tolerant plants is the general research question of these researchers.

The intention of this experiment is to determine the effects of pH on the rate of photosynthesis in living leaves. Photosynthesis is a process by which plants convert light energy captured from the sun into chemical energy which they use to perform various plant functions. During the photosynthesis process, light, carbon dioxide, and water react to produce products: sugar and oxygen. The equation for photosynthesis is:

Alternatively, changing other environmental parameters, such as temperature or pH, may have different effects on the rate of

All plants are subjected to a multitude of stresses throughout their life cycle. Depending on the species of plant and the source of the stress, the plant will respond in different ways. When a certain tolerance level is reached, the plant will eventually die. When the plants in question are crop plants, then a problem arises. The two major environmental factors that currently reduce plant productivity are drought and salinity (Serrano, 1999), and these stresses cause similar reactions in plants due to water stress. These environmental concerns affect plants more than is commonly thought. For example, disease and insect loss typically decrease crop yields by less than ten percent, but severe

other organisms have become easier. An example of this is present in the tomato plant. In order

During severe desiccation periods, plant lose all the available protoplasmic water. This loss of water causes structural stress as decreased cell volume places tension on the plasmalemma as it shrinks form plasmadesmatal attachments to the cell wall, the ultimate rupture of which allows entry of extracellular hydrolases and cell death (Jill F. 2016).