LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 9781319145125
Author: Sadava
Publisher: MAC HIGHER
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Chapter 41.2, Problem 2R
Summary Introduction
To review:
The reason as to why a speck of dust landing on the skin does not lead to an innate immune response, while a bacterium does.
Introduction:
The immune system can be divided into innate immunity and the adaptive immunity. Innate immunity is referred as the first line of defense and mainly includes physical and chemical barriers. It is nonspecific and acts on all potential harmful invaders without discrimination.
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Which of the following is NOT an example of passive immunization?
A.
Administration of tetanus toxoid
B.
Administration of hepatitis B immunoglobulin
C.
Administration of rabies immunoglobulin
D.
Transfer of antibodies via plasma therapy
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)
In this activity you will research performance enhancers that affect the
endocrine system or nervous system. You will submit a 1 page paper on one
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
Chapter 41 Solutions
LIFE: THE SCIENCE OF BIOLOGY
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