Reference no: EM131574152
Biology
Final Examination
(Please type your answers in blue-colored font on the space after the question.)
I. Answer the following briefly. (3 points each)
1. What is the concept of Charles Darwin's theory?
2. What is Biology as branch of science?
3. What is a DNA?
4. Define energy.
5. What is the smallest unit of life and how does it survive?
6. Explain what an atom is. How does it differ from an isotope?
7. How do radioisotopes become tools for medical diagnosis?
8. Explain the effect of increased temperature on water molecules.
9. What is the mechanism of water's cohesion?
10. Why is water an excellent solvent?
II. Fill in the blanks.
1. Molecules of life are ____________, which we define as containing the element carbon and at least one hydrogen atom.
2. Living organisms consists mainly of _________, _________, and __________.
3. ___________ are the most abundant molecules of life.
4. Butter, lard and vegetable oils are mostly ___________.
5. Each __________ consists of one or more polypeptide chains of amino acids.
6. Cells differ in size, shape and activities yet the three common parts are ____________, __________, and ___________.
7. Modern microscopes are gateways to cells. The ______________ uses wavelengths of light while the _____________ uses accelerated electrons.
8. Cell membranes consist mainly of proteins and ___________.
9. The _____________ is in charge of the formation of ATP.
10. The _____________ is in charge of photosynthesis.
III. True (T) or False (F).
1. Energy flows in one direction from usable to less usable forms.
2. ATP is the main carrier of energy in cells.
3. Kinetic energy is the capacity to do work.
4. Potential energy is the energy of motion.
5. The transfer of energy from ATP also results in the release of heat.
6. The kinetic energy of molecules is named chemical energy.
7. Chloroplasts are organelles specialized for photosynthesis.
8. Genes are units of information that influence the expression of inheritable traits.
9. Genes have no specific locations on the chromosomes of a species.
10. A dominant gene is said to enhance the effect on a recessive allele paired with it.
11. Not all traits have clearly dominant or recessive forms.
12. The environment introduces variation in traits.
13. Mutation maintains a gene's molecular structure.
14. True breeding lineage is when an offspring inherit a non-identical alleles for a trait.
15. Hybrid happens when an offspring inherit a pair of identical alleles.
Biology
Final Examination
(Please type your answers in blue-colored font on the space after the question.)
I. Answer the following briefly. (3 points each)
1. What is the concept of Charles Darwin's theory?
2. What is Biology as branch of science?
3. What is a DNA?
4. Define energy.
5. What is the smallest unit of life and how does it survive?
6. Explain what an atom is. How does it differ from an isotope?
7. How do radioisotopes become tools for medical diagnosis?
8. Explain the effect of increased temperature on water molecules.
9. What is the mechanism of water's cohesion?
10. Why is water an excellent solvent?
II. Fill in the blanks.
1. Molecules of life are ____________, which we define as containing the element carbon and at least one hydrogen atom.
2. Living organisms consists mainly of _________, _________, and __________.
3. ___________ are the most abundant molecules of life.
4. Butter, lard and vegetable oils are mostly ___________.
5. Each __________ consists of one or more polypeptide chains of amino acids.
6. Cells differ in size, shape and activities yet the three common parts are ____________, __________, and ___________.
7. Modern microscopes are gateways to cells. The ______________ uses wavelengths of light while the _____________ uses accelerated electrons.
8. Cell membranes consist mainly of proteins and ___________.
9. The _____________ is in charge of the formation of ATP.
10. The _____________ is in charge of photosynthesis.
III. True (T) or False (F).
1. Energy flows in one direction from usable to less usable forms.
2. ATP is the main carrier of energy in cells.
3. Kinetic energy is the capacity to do work.
4. Potential energy is the energy of motion.
5. The transfer of energy from ATP also results in the release of heat.
6. The kinetic energy of molecules is named chemical energy.
7. Chloroplasts are organelles specialized for photosynthesis.
8. Genes are units of information that influence the expression of inheritable traits.
9. Genes have no specific locations on the chromosomes of a species.
10. A dominant gene is said to enhance the effect on a recessive allele paired with it.
11. Not all traits have clearly dominant or recessive forms.
12. The environment introduces variation in traits.
13. Mutation maintains a gene's molecular structure.
14. True breeding lineage is when an offspring inherit a non-identical alleles for a trait.
15. Hybrid happens when an offspring inherit a pair of identical alleles.