Pre-lab questions: 1. Algae belong to what Kingdom? They belong to the Kingdom Protista. 2. What are the three types of multicellular algae? The three types if multicellular algae are chlorophyta which are green algae‚ phaeophyta which are brown algae‚ and rhodophyta which are red algae. 3. Are algae autotrophs or heterotrophs? Algae are autotrophs. 4. What organelle allows plants (and plantlike protists) to photosynthesize? The chloroplasts allow plants and plantlike protists to photosynthesize
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sion Computer programming using C++ Given the following classes‚ write the implementation codes and the driver program to demonstrate inheritance using C++. You may add other appropriate member functions and / or data members. class DemoBasePerson { private: double salary; protected: int age; public: char initial; void setPerson(double‚ int‚ char); //sets values for salary‚ age and initial void showPerson( ); //displays values stored in salary‚ age and initial };
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effects that acid rain has or does not have on seed growth and germination. The observation gathered from this experiment was that regular rain water that has a neutral pH is a better solution for seed growth. The seeds that were watered with the well water prospered more than the ones grown in the lemon juice solution. The results from this experiment were a little confusing‚ because in the first trial the seeds watered with well water germinated more than the seeds watered with the acid rain solution
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supplied food acid is citric acid (triprotic) or tartaric acid (diprotic acid) Materials 4 x 100mL conical flasks 50mL burette rubber bulb 1 x 200mL beaker white tile retort stand 20mL volumetric pipette volumetric flask stopper 300mL distilled water marker 40mL 0.3M food acid burette clamp 0.1M sodium hydroxide magnetic flea magnetic stirrer glass funnel 1 x 200mL volumetric flask phenolphthalein 4 x 50mL beakers Method Part A: Making the food acid Place distilled
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Vitamins and Minerals Vitamins and minerals are essential nutrients that every cell needs. Vitamins can function like hormones or as antioxidants. Minerals are essential to important bodily functions such as producing energy‚ growing‚ and healing. Minerals are required for fluid balance‚ development‚ nervous system maintenance .Minerals and vitamins‚ function as coenzymes and participate in enzymatic reactions in the body. Vitamin and mineral deficiencies can affect the brain many different ways
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The effect on the pH of Distilled water‚ Potato Solution and Commercial Buffer‚ when Hydrochloric acid (0.1 mol/L) and Sodium Hydroxide (0.1 mol/L) is added Mahima Mandava Mrs. Haist September 23rd‚ 2014 SBI4U1 Background Information: The pH is the measurement of how acidic or how basic a substance can be. The pH scale is used to measure how acidic or basic a living cell can be. The pH scale ranges from 0-14; 0-6 being acidic‚ 8-14 being basic and 7 being neutral. There are many factors
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take vitamin supplements ? I do not think we should take vitamin supplements as studies have shown that vitamins from supplements do not act on the body as the same way as vitamins from food‚ we can get what we need from a balanced diet. Fruit and veg which are high in vitamins also supply fibre which is necessary for health and often lacking in diets relying on supplements . Vitamins can have toxic effects‚ some may need vitamins but more vitamins is not necessarly better for example‚ vitamin A stores
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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Acid Rain Introduction: Titrations are often recorded on graphs called titration curves‚ which generally contain the volume of the titrant as the independent variable and the pH of the solution as the dependent variable (because it changes depending on the composition of the two solutions). The equivalence point on the graph is where all of the starting solution (usually an acid) has been neutralized by the titrant (usually a base). One can easily find the pKa of the monoprotic acid by finding
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Pre lab assessment questions Student’s name: Stephanie Jones Student ID number: s5054629 1. Dependent and Independent Variables Check your understanding of the experimental method by identifying the independent variable (IV) and dependent variable (DV) in the following investigations. 1a. Autonomic Nervous System Experiment in Week 3 Tutorials IV (name the two levels): Thought type (neutral and negative) DV (and how was it operationalised?): Arousal‚ measured by heart rate (BPM) Once you
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