BIO 163 RELIABLE EXAMS SHEET 2025/2026 QUESTIONS
AND SOLUTIONS RANKED A+
✔✔Water is an example of a compound and a molecule. True or False. - ✔✔true
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane uses a protein pump on the particles, which way will the particle move
and identify the name of this movement. - ✔✔out
active transport
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane is permeable to particles, which way will the particle move and identify
the name of this movement. - ✔✔in
simple diffusion
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane is permeable to water, which way will the water move and identify the
name of this movement. - ✔✔out
osmosis
✔✔What type of chemical bonds hold the two strands of DNA together - ✔✔hydrogen
✔✔If a macro-molecule is made solely of amino acids held together by peptide; bonds,
what molecule are you observing - ✔✔protein
✔✔If a macro-molecule is made of nucleic acids of a sugar, nitrogenous base, and
phosphate groups; what molecule are you observing - ✔✔DNA/RNA
✔✔In order to reproduce, cells have to copy their DNA. Provide the correlating second
DNA strand's code to this strand: AGCTTGCAGCAT - ✔✔TCGAACGTCGTA
✔✔In order to create proteins, cells have to copy their DNA into a more temporary form
known as RNA. Provide the correlating second strand's code to this strand:
AGCTTGCAGCAT - ✔✔UCGAACGUCGUA
✔✔Control Center - ✔✔the brain or spinal cord receive a signal that body temperature
is rising
✔✔Set Point - ✔✔this is the temperature the body used to feel
✔✔Sensor - ✔✔the nerves in the skin have receptors for heat
✔✔Effector - ✔✔blood vessels dilate
, ✔✔Water molecules cross the cell membrane using the process of ____ - ✔✔osmosis
✔✔Cells intake large amounts of water and dissolved particles using the process of
_____ - ✔✔Pinocytosis
✔✔Ions like sodium and potassium will cross the cell membrane using the process of
_____ - ✔✔active transport
✔✔Excretions like neurotransmitters will exit the cell using the process of _____ -
✔✔exocytosis
✔✔Small lipids like a single cholesterol molecule will enter the cell using the process of
____ - ✔✔simple diffusion
✔✔What is the primary pacemaker of the heart (what sets the heart beat)? -
✔✔sinoatrial (SA) node
✔✔Lymphatic fluid is returned to the blood system via connections to the -
✔✔subclavian and jugular veins
✔✔If the cardiac accelerator nerve is stimulated to release norepinephrine into the SA
node, what effect would you expect to see on heart rate? - ✔✔increase
✔✔Which of the following describes the portion of the cardiac cycle that allows for blood
to be ejected from the heart? - ✔✔ventricular systole, atrial diastole
✔✔Which of the following processes of the cardiac cycle increases blood pressure in
the aorta? - ✔✔ventricular systole, atrial diastole
✔✔Which event in the cardiac cycle happens as the AV node passes its signal to the
bundle of His? - ✔✔ventricles contract
✔✔The need to increase or decrease heart rate is determined by baroreceptors
reflexes. These baroreceptors occur in the ____ and send their signal to the ____ -
✔✔(carotids & aorta) to the (medulla oblongata)
✔✔In order to _____ the heart rate the vagus nerve will release acetylcholine onto the
pacemaker cells of the heart. The ACh will cause channels to open that result in the
cells' membrane potentials moving _____ to/from their threshold potential. -
✔✔decrease; farther away
AND SOLUTIONS RANKED A+
✔✔Water is an example of a compound and a molecule. True or False. - ✔✔true
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane uses a protein pump on the particles, which way will the particle move
and identify the name of this movement. - ✔✔out
active transport
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane is permeable to particles, which way will the particle move and identify
the name of this movement. - ✔✔in
simple diffusion
✔✔Scenario: A cell moves into an environment that is highly concentrated in "particles".
If the membrane is permeable to water, which way will the water move and identify the
name of this movement. - ✔✔out
osmosis
✔✔What type of chemical bonds hold the two strands of DNA together - ✔✔hydrogen
✔✔If a macro-molecule is made solely of amino acids held together by peptide; bonds,
what molecule are you observing - ✔✔protein
✔✔If a macro-molecule is made of nucleic acids of a sugar, nitrogenous base, and
phosphate groups; what molecule are you observing - ✔✔DNA/RNA
✔✔In order to reproduce, cells have to copy their DNA. Provide the correlating second
DNA strand's code to this strand: AGCTTGCAGCAT - ✔✔TCGAACGTCGTA
✔✔In order to create proteins, cells have to copy their DNA into a more temporary form
known as RNA. Provide the correlating second strand's code to this strand:
AGCTTGCAGCAT - ✔✔UCGAACGUCGUA
✔✔Control Center - ✔✔the brain or spinal cord receive a signal that body temperature
is rising
✔✔Set Point - ✔✔this is the temperature the body used to feel
✔✔Sensor - ✔✔the nerves in the skin have receptors for heat
✔✔Effector - ✔✔blood vessels dilate
, ✔✔Water molecules cross the cell membrane using the process of ____ - ✔✔osmosis
✔✔Cells intake large amounts of water and dissolved particles using the process of
_____ - ✔✔Pinocytosis
✔✔Ions like sodium and potassium will cross the cell membrane using the process of
_____ - ✔✔active transport
✔✔Excretions like neurotransmitters will exit the cell using the process of _____ -
✔✔exocytosis
✔✔Small lipids like a single cholesterol molecule will enter the cell using the process of
____ - ✔✔simple diffusion
✔✔What is the primary pacemaker of the heart (what sets the heart beat)? -
✔✔sinoatrial (SA) node
✔✔Lymphatic fluid is returned to the blood system via connections to the -
✔✔subclavian and jugular veins
✔✔If the cardiac accelerator nerve is stimulated to release norepinephrine into the SA
node, what effect would you expect to see on heart rate? - ✔✔increase
✔✔Which of the following describes the portion of the cardiac cycle that allows for blood
to be ejected from the heart? - ✔✔ventricular systole, atrial diastole
✔✔Which of the following processes of the cardiac cycle increases blood pressure in
the aorta? - ✔✔ventricular systole, atrial diastole
✔✔Which event in the cardiac cycle happens as the AV node passes its signal to the
bundle of His? - ✔✔ventricles contract
✔✔The need to increase or decrease heart rate is determined by baroreceptors
reflexes. These baroreceptors occur in the ____ and send their signal to the ____ -
✔✔(carotids & aorta) to the (medulla oblongata)
✔✔In order to _____ the heart rate the vagus nerve will release acetylcholine onto the
pacemaker cells of the heart. The ACh will cause channels to open that result in the
cells' membrane potentials moving _____ to/from their threshold potential. -
✔✔decrease; farther away
