One of the functional characteristics of life is excitability or responsiveness. This refers to ______
the nervous system causing all living things to sometimes experience anger
indigestible food residues stimulating the excretory system
sensing changes in the environment and then reacting or responding to them
the necessity for all organisms to reproduce
The Correct Answer is C
A. The nervous system causing all living things to sometimes experience anger: Excitability or responsiveness is not related to emotions such as anger. It is a fundamental property of cells and organisms that allows them to detect and respond to stimuli.
B. Indigestible food residues stimulating the excretory system: This describes elimination, a separate functional characteristic of life. Responsiveness is about detecting and reacting to internal or external environmental changes, not the disposal of waste products.
C. Sensing changes in the environment and then reacting or responding to them: Responsiveness refers to the ability of organisms to detect stimuli, such as changes in temperature, light, or internal conditions, and to respond in ways that maintain survival and homeostasis.
D. The necessity for all organisms to reproduce: Reproduction is an essential functional characteristic of life, but it is distinct from responsiveness. It ensures continuation of the species, while responsiveness deals with immediate reactions to environmental changes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Osmosis: Osmosis specifically refers to the movement of water across a selectively permeable membrane, not gases like oxygen or carbon dioxide.
B. Secondary active transport: Secondary active transport uses energy indirectly from an ion gradient to move molecules against their concentration gradient. Oxygen and carbon dioxide move passively.
C. Simple diffusion: Oxygen and carbon dioxide are small, nonpolar molecules that can freely cross the lipid bilayer of the plasma membrane. They move down their concentration gradients without the need for energy or transport proteins.
D. Channel-mediated facilitated diffusion: This process requires specific protein channels to transport polar or charged molecules. Since oxygen and carbon dioxide are nonpolar, they do not require channels to diffuse across the membrane.
Correct Answer is C
Explanation
A. 37 protons and 37 neutrons: The atomic number defines the number of protons, so an atomic number of 74 corresponds to 74 protons, not 37. Neutron number can vary depending on the isotope.
B. 37 protons and 37 electrons: Similarly, the number of protons equals the atomic number, which is 74 in this case. Electrons in a neutral atom also equal 74, not 37.
C. 74 protons: The atomic number of an element specifies the number of protons in its nucleus. Therefore, an atom with an atomic number of 74 has 74 protons.
D. 74 neutrons: Neutron number is not directly determined by the atomic number; it varies among isotopes. The atomic number only defines the number of protons.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.