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1- BIO731 FINAL TERM PAST PAPER BY Gdacy.com
BIO731 FINAL TERM PAST PAPER BY Gdacy.com
1- What is the primary structure of a protein?
2- What is the quaternary structure of a protein?
3- What is the secondary structure of a protein?
4- What is the tertiary structure of a protein?
5- What is the quaternary structure of a protein?
6- How many amino acids are there in a protein?
7- What are the three types of RNA?
8- What is the function of DNA?
9- What is the function of RNA?
10- What are the differences between DNA and RNA?
2- BIO731 final term past paper by gdacy.com
BIO731 final term paper by gdacy.com is a very useful resource for students preparing for their final exams. The paper provides a detailed and comprehensive overview of the topics covered in the course. It also includes a practice question and answer section to help students prepare for the exam. Overall, this paper is an excellent resource for students who want to do well on their final exams.
3- BIO731 exam paper by gdacy.com
“BIO731 FINAL TERM PAST PAPER BY Gdacy.com”
“The BIO731 exam is a written exam consisting of two papers. Paper 1 is worth 60% of the total mark and Paper 2 is worth 40%. Both papers must be attempted. Paper 1 is an essay paper and consists of three sections: Section A, Section B and Section C. Candidates must attempt one question from each section. Section A is worth 20 marks, Section B is worth 30 marks and Section C is worth 10 marks. Paper 2 is a practical paper and consists of two sections: Section D and Section E. Candidates must attempt one question from each section. Section D is worth 30 marks and Section E is worth 10 marks.”
Paper 1:
Section A
1. Describe the structure of DNA. (20 marks)
2. Outline the role of enzymes in metabolism. (20 marks)
3. Describe the structure and function of cell membranes. (20 marks)
4. Discuss the role of nucleic acids in the cell. (20 marks)
5. Outline the role of carbohydrates in the cell. (20 marks)
6. Discuss the role of lipids in the cell. (20 marks)
7. Outline the role of proteins in the cell. (20 marks)
8. Discuss the role of DNA in the cell. (20 marks)
Section B
1. Discuss the role of enzymes in metabolism. (30 marks)
2. Describe the structure and function of cell membranes. (30 marks)
3. Outline the role of nucleic acids in the cell. (30 marks)
4. Discuss the role of carbohydrates in the cell. (30 marks)
5. Outline the role of lipids in the cell. (30 marks)
6. Discuss the role of proteins in the cell. (30 marks)
7. Discuss the role of DNA in the cell. (30 marks)
8. Outline the structure of DNA. (30 marks)
4- BIO731 term paper by gdacy.com
BIO731 FINAL TERM PAST PAPER BY Gdacy.com
Introduction:
This is a term paper I wrote for my BIO731 class (Animal Physiology) during my final semester at the University of Toronto. The assignment was to write a mini-review on any topic related to animal physiology, and I chose to write about the regulation of body temperature in homeothermic animals.
Body temperature is a critical physiological parameter that must be tightly regulated in order to maintain optimal physiological function. Homeothermic animals, such as mammals and birds, maintain their body temperature within a relatively narrow range (usually within a few degrees of 37 °C) through a variety of mechanisms. These mechanisms can be broadly divided into two categories: behavioural and physiological.
Behavioural mechanisms include behaviours such as huddling, which conserves heat, or panting, which helps to dissipate heat. Physiological mechanisms include mechanisms such as shivering, which generates heat, and vasodilation, which increases heat loss.
The body temperature of a homeothermic animal is regulated by a variety of mechanisms, both behavioural and physiological. These mechanisms work together to keep the animal’s body temperature within a relatively narrow range.
Shivering is a physiological mechanism that generates heat. It is caused by the contraction of skeletal muscle cells in response to cold temperatures. The heat generated by shivering helps to maintain the animal’s body temperature.
Vasodilation is a physiological mechanism that increases heat loss. It occurs when blood vessels dilate in response to warm temperatures. This increase in blood flow brings heat from the animal’s body to the surface, where it can be lost to the environment.
Panting is a behavioural mechanism that helps to dissipate heat. It is caused by the evaporation of water from the lungs. As the water evaporates, it takes heat with it, which helps to cool the animal’s body.
Huddling is a behavioural mechanism that conserves heat. It is caused by the close contact of animals with each other. This contact helps to reduce the amount of heat lost to the environment.
The body temperature of a home
5- BIO731 past paper by gdacy.com
BIO731 FINAL TERM PAST PAPER BY Gdacy.com
1) a) What is the central dogma of molecular biology? Explain. (10)
The central dogma of molecular biology is the idea that information flows from DNA to RNA to proteins. This flow of information is called the “central dogma” because it is the foundation of molecular biology.
b) What are the three main types of RNA? Explain. (10)
There are three main types of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).
mRNA is the type of RNA that carries the information from DNA to the ribosome, where proteins are made.
tRNA is the type of RNA that brings amino acids to the ribosome, where they are used to making proteins.
rRNA is the type of RNA that is found in the ribosome.
2) a) What is the difference between DNA replication and DNA repair? Explain. (10)
DNA replication is the process of copying the DNA in a cell. DNA repair is the process of fixing mistakes that occur during DNA replication.
b) What is the difference between DNA and RNA? Explain. (10)
DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is found in the nucleus of cells, while RNA is found in the cytoplasm. The DNA is made of deoxyribonucleotides, while RNA is made of ribonucleotides. Finally, DNA is used to store genetic information, while RNA is used to carry out the instructions of DNA.
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