Quiz_1_Study_Questions

The 24 power plants in Baltimore metro area collectively emit about 40,300 metric tons of CO2 per day (www.carma.org), thereby increasing the level of greenhouse gases in this region. To counter this, environmentalists plan to plant trees in the area. How many moles of CO2 are emitted by these power plants every day? (1 ton =1000kg, molecular weight of CO2 is 44g) If on average 500 moles of glucose are synthesized by a tree each day, how many moles of CO2 can a single tree convert to glucose in a single day? How many trees need to be planted to reabsorb all the CO2 released into the atmosphere every day by these power plants? If a single tree occupies an average of 8.00 x 10-5 sq miles, what percent of the area of Baltimore city needs to be forested to counter the CO2 emitted from power plants alone?  (total area of Baltimore city is 92.00 sq miles)

For years we’ve been told that eating fat will cause various health problems and have been warned to eliminate it from our diet. But now we know that not all fat is the same. By understanding the difference between good and bad fats and how to include more healthy fat in your diet, you can improve your mood, boost your energy and well-being, and even lose weight. Since fat is an important part of a healthy diet, rather than adopting a low-fat diet, it’s more important to focus on eating more beneficial “good” fats and limiting harmful “bad” fats.   What is their experience with the health risks associated with ‘bad fat’ intake for example obesity, diabetes, heart disease, strokes, cancer, etc.? Why is eating healthy so important?   What are are recommendations for maintaining a healthy diet of ‘good fats’? What's the deal with fats?

Read the questions carefully and answer them comprehensively.

Part A 3. W What is the relationship between photosynthesis and respiration? Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. amino acids In photosynthesis, plants use the energy to synthesize from oxidized Reset Help reduced In respiration, are to form and provide energy to do work from sunlight in the cells of our body. air carbohydrogens proteins carbon dioxide and water from inner sources carbohydrates

- Why is high pressure an attractive approach to sterilization and food preservation? a. It is much cheaper than thermal approaches. b. It preserves nutritional and sensory properties of foods much better than heat. c. It allows many other kinds of containers that cannot otherwise be used with heat. d. High-pressure equipment offers higher profit margins for manufacturers. So biophysical chemists can have jobs e.

The World Health Organization (WHO) recommends us to limit "free sugar" intake to no more than 5 % of the total daily Calories consumed. Sugars like sucrose are considered "free sugars" and provide about 4 Calories per gram. If an individual consumes 2000 Calories in a day, what is the maximum amount of sugar they are advised to take in? How does this amount compare to the added sugars found in popular soft drinks?

sk: The Chemistry of Respiration Quantities 2. Examine the two scenarios belowoi6g • Scenario A: 100 g of glucose in the presence of unlimited oxygen is metabolized through aerobic respiration. • Scenario B: 100 g of glucose in the absence of oxygen is metabolized through anaerobic respiration. Would the mass of products produced in Scenario A be greater than, less than, or equal to the mass of products produced in Scenario B? Justify your answer.

Marks: 1 Stereochemistry is the study of: Choose one answer. a. organic chemistry b. two-dimensional chemistry c. theoretical chemistry d. three-dimensional chemistry

Activity 1. Carbohydrates Study the structure and answer the question below. 重重重 H. CH2OH C=0 H-C-OH H-C-OH но-с-н но-с-н но-с—н н-с-ОН H-C-OH но-с-н н-с-он н-с-он н-с-он ČH2OH ČH2OH ČH2OH Glucose Galactose Fructose 1. What are the elements you notice in the structures? 2. What do you notice with the carbon: hydrogen: oxygen (C: H: O) ratio in each structure? (Note: To answer these count the number of C, H, and O in the structure. 3. Now, look at the structure below. a. Did you see any similarities with the three structures? b. Do they have same kind of elements? c. What differences did you noticed with their structures? A. В. CH,OH ÇHOH ÇHOH 0- O. H H. OH Но H. H H он OH H H но OH H OH H OH H. OH C. CH2OH CH2OH CH2OH OH OH OH ÓH ÓH

Which type of refrigerant is the most environmentally friendly but dangerous to human health? a. R22 (Freon) Ammonia b. C. Hydrofluorocarbons (HFC) R410A (Puron) d.

Directions: Choose the letter of the best answer. Use a separate sheet of paper. 1. Nutritional chemists have found that burning 1 gram of fat releases twice the amount of heat energy as burning 1 gram of starch. Based on this information, which type of biomolecule would cause a person to gain more weight? A. carbohydrate B. fat C. proteins D. nucleic acid Which biomolecular group carries and passes on the hereditary information 2. of the organism? C. nucleic acids D. proteins A. carbohydrates B. lipids Lipids are insoluble in water because lipid molecules are A. hydrophilic B. neutral Atom is the basic unit of a chemical element. What are the atoms that 3. C. hydrophobic D. Zwitter ions 4. make up carbohydrates? A. C and H C. C, H and O D. C, H, O and N B. C, H and N 5. Which organic molecules are the primary energy source of the human body? C. nucleic acids A. carbohydrates B. lipids D. proteins

Please briefly discuss your opinion on greening or/and growing and propose three actions that you could take to become a green citizen?

Cacay oil has higher palmitic acid content than butter or coconut oil (refer to Table 1). Therefore, cacay oil SHOULD be solid at room temperature, not oil

2. Examine the two scenarios below. • Scenario A: 100 g of glucose in the presence of unlimited oxygen is metabolized through aerobic respiration. • Scenario B: 100 g of glucose in the absence of oxygen is metabolized through anaerobic respiration. Would the mass of products produced in Scenario A be greater than, less than, or equal to the mass of products produced in Scenario B? Justify your answer.

Don't use hand raiting please

For this discussion activity, please respond to the following question: Combustion requires three primary components: fuel, energy, and an oxidizer. The fuel is the organic starting material and once the activation energy is achieved, large amounts of energy are rapidly released fragmenting reactants into individual atoms. The components quickly rearrange into smaller and more stable molecules. Oxygen serves as an oxidizer, due to its electronegativity, accepting electrons and forming products including water and carbon dioxide. Nitroguanidine (CH4N402) is used in select fertilizers and more commonly as a component to propel munitions. Suppose a field artillery soldier was calculating how much nitroguanidine was needed to propel a round. The soldier would need to consider the desired volume of gas to displace along the gun tube and the ambient operating conditions. a. Predict the reaction products for the detonation of 1 mole of nitroguanidine. b. Calculate the amount of explosive…

Identify the single most effective strategy to reduce carbon dioxide emissions.     A. Use methane rather than gasoline for fuel in cars and trucks   B. Develop alternate energy sources that do not rely on fossil fuels   C. Use wood as a home heating fuel   D. Convert all vehicles to diesel fuel