Homework Questions and Answers
for All Subjects

Here, you can freely access questions and answers from various subjects.
Our goal is to assist all learners in need. It is constantly being updated.

New Questions

The length of human pregnancies is approximately normal with mean μ=266 days and standard deviation σ=16 days. Complete parts (a) through (f). B. If 100 independent random samples of size n=14 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 258 days or more. C. If 100 independent random samples of size n=14 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 258 days or less. (d) What is the probability that a random sample of 29 pregnancies has a mean gestation period of 258 days or less? The probability that the mean of a random sample of 29 pregnancies is less than 258 days is approximately 0.0035 (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) A. If 100 independent random samples of size n=29 pregnancies were obtained from this population, we would expect 0 sample(s) to have a sample mean of 258 days or less. B. If 100 independent random samples of size n=29 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 258 days or more. C. If 100 independent random samples of size n=29 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 258 days. (e) What might you conclude if a random sample of 29 pregnancies resulted in a mean gestation period of 258 days or less? This result would be so the sample likely came from a population whose mean gestation period is 266 days.
6. In the chloroplast, light energy absorbed by P700 energizes an electron that does which of the following? a. It immediately forms ATP b. It transfers to ferrodoxin, which then forms NADPH. c. It immediately forms NADPH. d. It transfers to PQ, which causes protons to enter the lumen. e. a and b 7. Which of these best describes the action of the Calvin cycle? a. It uses CO2 from the atmosphere, and ATP and NADPH from the light dependent reactions. b. It takes six cycles to reform RuBP, and three cycles to produce glucose. c. It can take place only in darkness. d. One molecule of carbon dioxide is fixed in three cycles. e. None of the above. 8. Which of the following is most important energy source for the process of photophosphorylation? a. Light b. Oxidative phosphorylation c. Light and oxidative phosphorylation d. Substrate level and oxidative phosphorylation e. Redox reactions 9. What will six cycles of the Calvin cycle produce? a. One molecule of glucose and six molecules of RuBP b. One molecule of glucose and three molecules of RuBP c. Two molecules of glucose and six molecules of RuBP d. Half of one molecule of glucose and three molecules of RuBP e. None of the above 10. When lipids are metabolized, glycerol is converted to G3P and enters glycolysis, while fatty acids have to go through beta-oxidation, get converted into acetyl-CoA and enter the Kreb cycle. a. Beta-oxidation, acetyl-CoA b. Deamination, pyruvate c. Deamination, Acetyl-CoA d. Beta-Oxidation, Pyruvate e. Deamination, Beta-Oxidation