Biology B Final Exam
What does HIV do to the immune system? - correct answer -HIV directs formation of new viral parts.
Then the viruses leave by budding or bursting through cell membranes. The white blood cells are
destroyed
Describe the role of the human circulatory system. - correct answer -Transports blood/ Oxygen to the
rest of the body.
What are homologous structures, and how do they provide evidence for evolution? - correct answer -
Homologous structures point to similar structures from different organisms. These organisms may look
similar but have different functions.
Ex. a Bat's wing vs. Human arms
This points to a common ancestor but the environment changes the function.
What are neurotransmitters, and where do they do their job? - correct answer -Neurotransmitters are
found in the synaptic gaps. Neurotransmitters are chemicals that transmit a nervous system's signal
across a synapse.
How do hormones maintain homeostasis? - correct answer -Hormones are a chemical messenger to
target cell and affect cell activity to create needed products to maintain homeostasis.
Describe a feedback loop that controls the amount of sugar in the blood. - correct answer -If there is
sugar in the system, insulin will be released from the pancreas to remove extra glucose in the blood.
Insulin is not produced/released when there is no glucose to store.
AIDS affects ______ cells of the immune response. - correct answer -White blood cells
The skin's role for the body is ___________. - correct answer -protection/sensory organ
, Describe one example of a consumer as it relates to a producer. - correct answer -The cow, consumer,
has to eat grass, the producer, to acquire energy because consumers are not capable of photosynthesis.
Animals that feed on plants are at the _______tropic level. - correct answer -2nd tropic level/Primary
consumers
The site of gas exchange occurs ________. - correct answer -Capillaries
What do white blood cells do in the immune system? - correct answer -White blood cells attack the
pathogen that causes infectious diseases
The biogeochemical cycle includes all of the following elements ___________. - correct answer -Carbon,
Nitrogen, Oxygen, Phosphorus, Water
How do biogeochemical elements cycle through living and nonliving systems? - correct answer -It is the
movement of a particular chemical through biological, geological, or living/non-living parts of a system.
The gray matter is made up of _______. - correct answer -Collection of neuron cell bodies
An antibody is __________. - correct answer -An antibody is a protein produced by B cells that aids in
the destruction of pathogens.
The spinal chord connects to the peripheral nervous system through _________. - correct answer -
Central Nervous System (CNS) and Peripheral Nervous System (PNS) are connected through spinal cord.
Photosynthetic organisms are examples of ___________ in an ecosystem. - correct answer -Producers
(organisms which can make their own food)
One disadvantage of nervous system signals that is not true for hormonal signals is _________. - correct
answer -Nervous system signals are all-or-nothing responses. The signal has to be strong enough to pass
through the windows
What does HIV do to the immune system? - correct answer -HIV directs formation of new viral parts.
Then the viruses leave by budding or bursting through cell membranes. The white blood cells are
destroyed
Describe the role of the human circulatory system. - correct answer -Transports blood/ Oxygen to the
rest of the body.
What are homologous structures, and how do they provide evidence for evolution? - correct answer -
Homologous structures point to similar structures from different organisms. These organisms may look
similar but have different functions.
Ex. a Bat's wing vs. Human arms
This points to a common ancestor but the environment changes the function.
What are neurotransmitters, and where do they do their job? - correct answer -Neurotransmitters are
found in the synaptic gaps. Neurotransmitters are chemicals that transmit a nervous system's signal
across a synapse.
How do hormones maintain homeostasis? - correct answer -Hormones are a chemical messenger to
target cell and affect cell activity to create needed products to maintain homeostasis.
Describe a feedback loop that controls the amount of sugar in the blood. - correct answer -If there is
sugar in the system, insulin will be released from the pancreas to remove extra glucose in the blood.
Insulin is not produced/released when there is no glucose to store.
AIDS affects ______ cells of the immune response. - correct answer -White blood cells
The skin's role for the body is ___________. - correct answer -protection/sensory organ
, Describe one example of a consumer as it relates to a producer. - correct answer -The cow, consumer,
has to eat grass, the producer, to acquire energy because consumers are not capable of photosynthesis.
Animals that feed on plants are at the _______tropic level. - correct answer -2nd tropic level/Primary
consumers
The site of gas exchange occurs ________. - correct answer -Capillaries
What do white blood cells do in the immune system? - correct answer -White blood cells attack the
pathogen that causes infectious diseases
The biogeochemical cycle includes all of the following elements ___________. - correct answer -Carbon,
Nitrogen, Oxygen, Phosphorus, Water
How do biogeochemical elements cycle through living and nonliving systems? - correct answer -It is the
movement of a particular chemical through biological, geological, or living/non-living parts of a system.
The gray matter is made up of _______. - correct answer -Collection of neuron cell bodies
An antibody is __________. - correct answer -An antibody is a protein produced by B cells that aids in
the destruction of pathogens.
The spinal chord connects to the peripheral nervous system through _________. - correct answer -
Central Nervous System (CNS) and Peripheral Nervous System (PNS) are connected through spinal cord.
Photosynthetic organisms are examples of ___________ in an ecosystem. - correct answer -Producers
(organisms which can make their own food)
One disadvantage of nervous system signals that is not true for hormonal signals is _________. - correct
answer -Nervous system signals are all-or-nothing responses. The signal has to be strong enough to pass
through the windows
