Describe how substances can move into and out of cells

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Question 1: Describe how substances can move into and out of cells, including energy requirements and means of movement (directly through the membrane vs use of a transporter/channel). What types of substances can cross the membrane directly? Which molecules can only cross if assisted by a membrane protein? What is endocytosis and exocytosis?

Question 2: List and describe the function of all organelles in a typical human cell.

Question 3: Explain the role of ATP in cell homeostasis. What do we need ATP for? How do cells make it?

Question 4: What role do stem cells play in the body? List some organs/tissues that rely on stem cells. Describe the typical life cycle of a cell, including cell division (mitosis), differentiation/specialization, and apoptosis. How is this cycle altered in cancerous cells? Know the difference between an undifferentiated and a differentiated cell.

Reference no: EM133215164

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