Ap Biology Chapter 1 Study Guide
Chapter 1- 2
CHAPTER 1 INTRODUCTION: THEMES IN THE STUDY OF LIFE
OBJECTIVES
Exploring Life on Its Many Levels 1. Briefly describe the unifying themes that characterize the biological sciences. 1. The cell an organism’s basic unit of structure and function 2. Heritable information: the inheritance of biological information in the form of DNA which is encoded in the nucleotide sequence of DNA. 3. Emergent properties: emerge as a result of interaction among components at the lower. 4. Regulation: it maintains a steady state for internal factors. 5. Interactions with the environment- organisms are open system that exchange material and energy with their surroundings. 6. Energy and life: all organisms must perform work, which required energy. …show more content…
Explain how the atomic number and mass number of an atom can be used to determine the number of neutrons.
Atomic number is the number of proton or electron
The number of neutron is equal mass number minus atomic number.
The isotopes are similar because they have the same number of electrons which determines the properties of an element. They are different because they have a different number of neutrons. 7. Explain how two isotopes of an element are similar. Explain how they are different. * Two atoms of the same element that differ in the number of neutrons are isotopes. Neutrons are the neutral particles found in atoms. The isotopes have the same number of electrons which determine the properties of the element. 8. Describe two biological applications that use radioactive isotopes.
Radioactive isotopes have many applications in biological research. * Radioactive decay rates can be used to date fossils. * Radioactive isotopes can be used to trace atoms through metabolic processes.
9. Define the terms energy and potential energy. Explain why electrons in the first electron shell have less potential energy than electrons in higher electron
CHAPTER 1 INTRODUCTION: THEMES IN THE STUDY OF LIFE
OBJECTIVES
Exploring Life on Its Many Levels 1. Briefly describe the unifying themes that characterize the biological sciences. 1. The cell an organism’s basic unit of structure and function 2. Heritable information: the inheritance of biological information in the form of DNA which is encoded in the nucleotide sequence of DNA. 3. Emergent properties: emerge as a result of interaction among components at the lower. 4. Regulation: it maintains a steady state for internal factors. 5. Interactions with the environment- organisms are open system that exchange material and energy with their surroundings. 6. Energy and life: all organisms must perform work, which required energy. …show more content…
Explain how the atomic number and mass number of an atom can be used to determine the number of neutrons.
Atomic number is the number of proton or electron
The number of neutron is equal mass number minus atomic number.
The isotopes are similar because they have the same number of electrons which determines the properties of an element. They are different because they have a different number of neutrons. 7. Explain how two isotopes of an element are similar. Explain how they are different. * Two atoms of the same element that differ in the number of neutrons are isotopes. Neutrons are the neutral particles found in atoms. The isotopes have the same number of electrons which determine the properties of the element. 8. Describe two biological applications that use radioactive isotopes.
Radioactive isotopes have many applications in biological research. * Radioactive decay rates can be used to date fossils. * Radioactive isotopes can be used to trace atoms through metabolic processes.
9. Define the terms energy and potential energy. Explain why electrons in the first electron shell have less potential energy than electrons in higher electron