37. Hyphae
a. increase the surface area-to-volume ratio of the fungus
b. have slender filaments
c. allow for efficient uptake of nutrients
d. all of the above
D?
38. In which process do tRNA molecules attach amino acids to the growing chain according to the codons?
a. transcription
b. replication
c. translation
d. transformation
C?
11. Solar energy can be trapped in the atmosphere by
a. the chemical bonds of carbon dioxide
b. the chemical bonds of ozone
c. radiation
d. sunlight
Not sure…B?
33. In addition to causing disease, protests also affect humans through
a. their role in the nitrogen cycle
b. their antibiotic properties
c. their ability to clean up oil spills
d. all of the above
A?
Thanks
-MC
33. Nearly all antibiotics are made from fungi. Nitrogen fixing is made by bacteria in roots.
Answer c is true.
11, the question I have been gritting my teeth over, and avoiding your post because of it. Solar energy trapped? Grrrr. Solar energy in the atmosphere is stored 99percent of it in water molecules. Water can absorb a lot of energy, so the little water vapor in the atmosphere is to account for the mechanism for energy distribution worldwide. How do they get the energy (convection? conduction? radiation?)? Mainly by infared radiation. THe infared radiation reradiated from reflective or warmed bodies can be absorbed by water molecules...just as your microwave oven works...and the water stores the energy.
Now your answers: a, b, c, d? None of them are right. infared radiation moves the energy to the water, and the water stores it. Duh. I don't know what to say, thus I have avoided these questions.
38, yes translation
first one: yes all.
That's alright, about #11...thanks so much! (:
-MC
STUPID CHEATERS
37. The correct answer is d. all of the above. Hyphae are slender filaments that increase the surface area-to-volume ratio of the fungus. This increased surface area allows for efficient uptake of nutrients.
To arrive at this answer, you can break down the options and analyze each statement:
a. Hyphae increase the surface area-to-volume ratio of the fungus: This statement is true. Hyphae are thread-like structures that extend and branch out, increasing the surface area available for absorption of nutrients.
b. Hyphae have slender filaments: This statement is also true. Hyphae are thin and elongated, allowing them to penetrate through various substrates.
c. Hyphae allow for efficient uptake of nutrients: This statement is true as well. The extended surface area of the hyphae enables them to come into contact with a larger volume of substrate, thus maximizing nutrient absorption.
Based on the analysis of each statement, it is clear that all of them are correct, leading to the correct answer of d. all of the above.
38. The correct answer is c. translation. In the process of translation, tRNA molecules attach amino acids to the growing chain according to the codons present on the mRNA.
To find the answer, you can eliminate the other options by understanding their definitions:
a. Transcription: Transcription is the process of producing mRNA from DNA.
b. Replication: Replication is the process of copying DNA to create new DNA molecules.
d. Transformation: Transformation is the process of changing the genetic material of a cell.
Since none of these options involve the attachment of amino acids to a growing chain, they can be ruled out, leaving c. translation as the correct answer.
11. The correct answer is a. the chemical bonds of carbon dioxide. Solar energy can be trapped in the atmosphere by the chemical bonds of carbon dioxide.
To determine the correct answer, you can evaluate each option:
a. The chemical bonds of carbon dioxide: This statement is true. Carbon dioxide molecules in the atmosphere absorb and trap solar energy through their chemical bonds.
b. The chemical bonds of ozone: This statement is not correct. While ozone molecules do play a role in the atmosphere, they primarily absorb and block harmful ultraviolet radiation instead of trapping solar energy.
c. Radiation: This statement is too vague to be correct. While radiation does play a role in the interaction of solar energy with the atmosphere, it does not specifically trap solar energy.
d. Sunlight: This statement is also too vague. Sunlight is the source of solar energy, but it does not trap solar energy itself.
Based on the analysis, the correct answer is a. the chemical bonds of carbon dioxide.
33. The correct answer is d. all of the above. In addition to causing disease, protests affect humans through their role in the nitrogen cycle, their antibiotic properties, and their ability to clean up oil spills.
To arrive at the answer, let's examine each statement:
a. Their role in the nitrogen cycle: This statement is true. Some protests, such as the activities of certain bacteria and fungi, contribute to the nitrogen cycle by converting nitrogen gas into forms that can be used by plants and other organisms.
b. Their antibiotic properties: This statement is also true. Some protests, like certain types of bacteria or fungi, produce compounds with antibiotic properties that can be utilized for medicinal purposes.
c. Their ability to clean up oil spills: This statement is true as well. Some protests, like certain types of bacteria, have the ability to break down or degrade oil, aiding in the cleanup of oil spills.
Considering that all of the statements are true, the correct answer is d. all of the above.
I hope this helps clarify your questions. Let me know if there's anything else I can assist you with!