Fish Respiration Rate Lab

In Graph II, as predicted the fish in warm water used up more oxygen and thus had a lesser concentration than the fish in the cold water as their body processes slow down and oxygen is conserved itself. There was an error as oxygen concentration increased after 30 minutes for the fish in warm water as some how it seemed as if more oxygen was added in the closed container. The result of the fish in the cold water, as predicted showed that oxygen gradually decreased which itself as the body processes of fish slowed down.

The result of T-1 and T-2 is different. T-1 does not have any significant change in water level the greatest change was -5cm/h at 4A. Half of locations do not have any change. On the other hand, only 1 location does not have change in the other group’s table. Most of velocities from T-2 are negative. Therefore, the water level is decreasing. No matter the experiment time is almost same (None of data has difference more than 10 minute For example, in T-1, the time in for 1A is 14:39 pm and in T-2, the time in for 1A is 14:33 pm), the result from each table has large difference. I assume the difference cause by having different tide cycle on both days.

Questions to answer in your lab report. NOTE: some questions pertain to the week 1 exercise, some to week 2, and others to both. How is the amount of temperature variation related to the volume of the water body? How might you measure the speed of temperature change? How would you expect the speed of change to vary with habitat volume? Are water temperatures different than air temperatures? How are they different? Are there any cyclical patterns in the temperature-logged data (“time series”) from Angel? If so, what do you think caused these repeating patterns? Based on the results of this exercise, how might you

The purpose or the significance of the experiment was to see if brine shrimp can survive in different salinities of saltwater. The experimental (alternative) hypothesis was supported, because in figure 1 it showed that there was an increase of the average (mean) of survival rate of the brine shrimp when the salinity level (in grams) increased. It was in Figure 1 and it shown that the rates had higher numbers (increased survival rates) and the lower salinities had lower survival rates. The raw data also had shown that higher numbers were in the higher salinities rather than in the lower salinities. The salt had an effect on the Brine Shrimp, is because the more the more salt they had (being a saltwater species) would lead to more surviving unlike a lower salinity which did not have enough salt to support the DV (the Brine Shrimp).

In the Aquarium experiment it consisted of 5 tanks: tank 1 included rocks and water , Tank 2 contained water, gravel rocks and plants, tank 3 contained gravel rocks, water, snails, tank 4 contained gravel rocks, water, snails and tank 5 contained water, gravel rocks, snails and plants. For conduction this experiment we made multiple predictions before conducting this experiment. First tank 1 we predicted that the level of carbon dioxide wouldn’t occur and also the level of oxygen. They wasn’t any activity such as plant or animal in the tank to create any process. This would be the case because they was photosynthesis or cellular respiration involved in this tank. For the data we collected from this tank determine that the prediction was

The purpose of this experiment was to deter whether or not the simulated sample given to us, was too toxic for the fish in the Columbia River to survive in. Through our calculations, we have found that our simulated sample’s toxicity is too low to actually cause a full-on fish kill scenario. This a critical result in this experiment because while the toxicity level may not be high enough to kill the population of fish at this moment in time, it could quite possibly become a major problem in the future. The knowledge that we were able to determine from our data allows us to brainstorm prevention methods for fish-kill itself because the future of both fish and humans are at stake.

The Effect of Activity on a Human’s Cellular Respiration Rate Introduction: Cellular respiration is a process that breaks down glucose forming ATP, and releasing CO2 as a by product (“Cellular Respiration”). Cellular respiration is main source of energy in for humans. Since it produces CO2 as a by product, by testing CO2 rates, one can determine the metabolic or cellular respiration rate of a human. Our experiment was testing human activity rate on cellular respiration rate.

Sea stars can reproduce sexually and asexually. In sexual reproduction, fertilization occurs in the water with males and females releasing sperm and eggs into the environment. The fertilized embryos, which are free-swimming animals, become part of the zooplankton in most species. If they break in half they can produce another Sea Star, which relates to regeneration.

This week we learned about measuring respiration; respiration has to be measured each time of vital sign. Accurate measuring should not let the patient know you are counting respirations. You have to counting rise and fall of the chest breath per minute.

Experimental Question: How does an enclosed environment with nutrient affect cellular respiration? Hypothesis: If yeast is mixed with apple cider without any air in an enclosed space then the yeast will carry out cellular respiration because the yeast will consume the sugar in the apple cider causing cellular respiration. Yeast Activity in an Enclosed Environment: Time (hours)

respiration rates in goldfish than it did in cooler temperatures. The data figures 1 and 2 reflect

In conclusion, the experiments showed that my hypothesis for salinity is not supported because hot water is less dense than cold water, therefore, the hot water floated on the cold water. Hot air floats and cold air sinks which creates wind so the same reasoning could be used for hot water floats and cold water sinks. The research talked about how ice is less dense than water but never directly stated that cold water was less than water also. An assumption that the same thing applied to cold water was made when creating the hypothesis. On the other hand, the results supported the hypothesis for temperature, showing how salt water would remain on the bottom or move there and fresh water would stay on the top or move there as well. Research

Background Two types of respiration occur during exercise that depend on the oxygen levels in the blood. Aerobic respiration requires oxygen that acts as the electron acceptor at the end of the electron transport chain (ETC). The full mechanism of aerobic respiration, from glycolysis to the ETC, creates 38 ATP on average. However, when there is not sufficient oxygen to perform aerobic respiration, anaerobic respiration occurs. The only a net gain of two ATP during anaerobic respiration due to glycolysis. The pyruvate that is a product of glycolysis is then put through lactic acid fermentation which leads to muscle fatigue because of the low pH of lactic acid. At sea level the blood oxygen saturation of a healthy person breathing normal air

The correlation between body mass and metabolic rate that I have seen in this experiment is that, the smaller the organism’s mass, the higher its metabolic rate. In the lab, the mouse that was used to determine metabolic rate, shows the rate of the oxygen consumed, which means, the small mouse that weighed 12.9g consumed 6.65 O2/h/g than a mouse who weighed 42g which only consumed 4.16 O2/h/g.

The purpose of this experiment was to see how a fish can maintain homeostasis when put through physiological stress in different temperatures of water. The fish respired less in the water that was 12 degrees and respired the most in the water that was 27 degrees. It’s respirations in 20 degree water were closer to the amount of respirations in the 27 degree water than in the 12 degree water. It is important to see how organisms acclimate to their environment so that scientists know the limits of the organism’s tolerance range. Scientists want to perform experiments with organisms, but killing them is not ideal for the purposes.