BIO 253 FINAL EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2026
Cellular Transport Mechanisms - ANSWERS--Diffusion
-Osmosis
-Facilitated Diffusion
-Active Transport
-Filtration
-Phagocytosis
-Pinocytosis
active transport - ANSWERS-Energy-requiring process that
moves material across a cell membrane against a
concentration difference
Filtration - ANSWERS-A process that separates materials
based on the size of their particles.
,Diffusion - ANSWERS-Movement of molecules from an area
of higher concentration to an area of lower concentration.
Osmosis - ANSWERS-diffusion of water across a selectively
permeable membrane
facilitated diffusion (passive transport) - ANSWERS-
movement of molecules across a membrane via transport
proteins without energy from ATP hydrolysis
Phagocytosis - ANSWERS-A type of endocytosis in which a
cell engulfs large particles or whole cells
Pincocytosis - ANSWERS-the cell takes in small droplets of
extracellular fluid within small vesicles
Cell membrane is made of - ANSWERS-lipids, phosplipids,
protein, cholesterol.
Endocytosis - ANSWERS-process by which a cell takes
material into the cell by infolding of the cell membrane
,ion pumps and ion channels - ANSWERS-What establishes a
resting potential of a neuron?
white blood cells (leukocytes) - ANSWERS-respond to injury
or infection/fight infection
Layers of the heart wall - ANSWERS-1. Epicardium
2. Myocardium
3. Endocardium
epicardium- function and definition (VISCERAL LAYER) -
ANSWERS-protects the heart by reducing friction.
Composed of a serous membrane that consists of
connective tissue covered by epithelium, and it includes
capillaries and nerve fibers
Endocardium function - ANSWERS-serves as protective inner
lining of the chambers and valves/prevents clotting in the
heart
myocardium function - ANSWERS-provides muscular
contractions that eject blood from the heart chambers
, Arteries conduct blood ___ from the heart - ANSWERS-away
Veins - conduct blood _____ the heart _________________ -
ANSWERS-towards
Capillaries conducts blood through? - ANSWERS-The tissues
and allows exchange of materials.
Eosinophils - ANSWERS-involved in allergic response/orange
staining.
Neutrophils - ANSWERS-first responder to tissue injury
platelet - ANSWERS-initiate clotting process
Erythrocytes - ANSWERS--transport oxygen and carbon
dioxide
-most numerous of formed elements
Granulocytes - ANSWERS-neutrophils, eosinophils, basophils
Agranulocytes - ANSWERS-lymphocytes and monocytes
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2026
Cellular Transport Mechanisms - ANSWERS--Diffusion
-Osmosis
-Facilitated Diffusion
-Active Transport
-Filtration
-Phagocytosis
-Pinocytosis
active transport - ANSWERS-Energy-requiring process that
moves material across a cell membrane against a
concentration difference
Filtration - ANSWERS-A process that separates materials
based on the size of their particles.
,Diffusion - ANSWERS-Movement of molecules from an area
of higher concentration to an area of lower concentration.
Osmosis - ANSWERS-diffusion of water across a selectively
permeable membrane
facilitated diffusion (passive transport) - ANSWERS-
movement of molecules across a membrane via transport
proteins without energy from ATP hydrolysis
Phagocytosis - ANSWERS-A type of endocytosis in which a
cell engulfs large particles or whole cells
Pincocytosis - ANSWERS-the cell takes in small droplets of
extracellular fluid within small vesicles
Cell membrane is made of - ANSWERS-lipids, phosplipids,
protein, cholesterol.
Endocytosis - ANSWERS-process by which a cell takes
material into the cell by infolding of the cell membrane
,ion pumps and ion channels - ANSWERS-What establishes a
resting potential of a neuron?
white blood cells (leukocytes) - ANSWERS-respond to injury
or infection/fight infection
Layers of the heart wall - ANSWERS-1. Epicardium
2. Myocardium
3. Endocardium
epicardium- function and definition (VISCERAL LAYER) -
ANSWERS-protects the heart by reducing friction.
Composed of a serous membrane that consists of
connective tissue covered by epithelium, and it includes
capillaries and nerve fibers
Endocardium function - ANSWERS-serves as protective inner
lining of the chambers and valves/prevents clotting in the
heart
myocardium function - ANSWERS-provides muscular
contractions that eject blood from the heart chambers
, Arteries conduct blood ___ from the heart - ANSWERS-away
Veins - conduct blood _____ the heart _________________ -
ANSWERS-towards
Capillaries conducts blood through? - ANSWERS-The tissues
and allows exchange of materials.
Eosinophils - ANSWERS-involved in allergic response/orange
staining.
Neutrophils - ANSWERS-first responder to tissue injury
platelet - ANSWERS-initiate clotting process
Erythrocytes - ANSWERS--transport oxygen and carbon
dioxide
-most numerous of formed elements
Granulocytes - ANSWERS-neutrophils, eosinophils, basophils
Agranulocytes - ANSWERS-lymphocytes and monocytes
