EBK BIOLOGY
5th Edition
ISBN: 9780133954425
Author: Maier
Publisher: YUZU
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Chapter 20, Problem 8LTB
Summary Introduction
Introduction:
The immune system can be defined as the organs and body processes that resist the infection and toxins. This system includes the organs such as bone marrow, thymus, and lymph nodes. Helper T cells are the most significant cells in adaptive immunity. These are needed for about all the adaptive immune responses. These cells aid in the activation of B-cells to release the antibodies and macrophages to destroy the consumed microbes. In addition, they help in the activation of cytotoxic T-cells to destroy the infected target cells.
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Which of the following is NOT an example of passive immunization?
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Transcription and Translation
1. What is the main function of transcription and translation? (2
marks)
2. How is transcription different in eukaryotic and prokaryotic
cells? (2 marks)
3. Explain the difference between pre-mRNA and post-transcript
mRNA. (2 marks)
4. What is the function of the following: (4 marks)
i. the cap
ii. spliceosome
iii. Poly A tail
iv. termination sequence
5. What are advantages to the wobble feature of the genetic
code? (2 marks)
6. Explain the difference between the: (3 marks)
i. A site & P site
ii. codon & anticodon
iii. gene expression and gene regulation
7. Explain how the stop codon allows for termination. (1 mark)
8. In your own words, summarize the process of translation. (2
marks)
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performance enhancer of your choice. Be sure to include:
the specific reason for use
the alleged results on improving performance
how it works
how it affect homeostasis and improves performance
any side-effects of this substance
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