Question

• phagocytosis = cell \______\
• cell engulfs ______ into vesicles and \digests\ them
• pinocytosis = cell \______\
• cell engulfs ______ into vesicles and \digests\ them

exocytosis: uses vesicles to export materials ______ of the cell

• ex. when nerve cells secrete neurotransmitters to send signals throughout the body

type of transport	active/passive	ex. of substances transported this way	ex. of how it helps maintain homeostasis
	active	neurotransmitters
endocytosis		captures bacteria
	passive		controlling blood pressure by regulating blood volume
	passive	o₂ and co₂
		k⁺, na⁺, ca²⁺, cl⁻	muscle contractions and nerve signal conduction

Explanation:

Phagocytosis is the cell "eating" - engulfing large particles. Pinocytosis is the cell "drinking" - engulfing fluids. Exocytosis exports materials out of the cell. Facilitated diffusion is passive, often transports glucose for blood - sugar regulation. Neurotransmitters are actively transported in exocytosis for nerve - signaling. Endocytosis is active when capturing bacteria. Passive transport examples include gas exchange ($O_2$ and $CO_2$) and some ion transport for muscle and nerve function, and volume - related passive transport for blood - pressure control.

Answer:

• Phagocytosis = cell "eating", Cell engulfs large particles into vesicles and "digests" them
• Pinocytosis = cell "drinking", Cell engulfs fluids into vesicles and "digests" them
• Exocytosis: uses vesicles to export materials out of the cell
• Facilitated Diffusion, Passive, Glucose, Regulating blood sugar
• Exocytosis, Active, Neurotransmitters, Sending nerve signals
• Endocytosis, Active, Captures bacteria, Immune response
• Osmosis (assumed for blood - volume related passive transport), Passive, Water, Controlling blood pressure by regulating blood volume
• Simple Diffusion, Passive, $O_2$ and $CO_2$, Gas exchange
• Ion Diffusion (for $K^+$, $Na^+$, $Ca^{2 + }$, $Cl^-$), Passive, $K^+$, $Na^+$, $Ca^{2 + }$, $Cl^-$, Muscle contractions and nerve signal conduction