Question 1

What is a tumor primarily composed of?

Accepted Answer

A heterogeneous collection of infiltrating and resident host cells, secreted factors, and extracellular matrix.

Answer

Only tumor-associated immune cells

Answer

Exclusively blood vessels

Answer

A single type of cancer cell

Question 2

What role do immune cells play in the tumor microenvironment?

Accepted Answer

They can either suppress tumor growth or promote it.

Answer

They have no role in cancer

Answer

They only attack cancer cells

Answer

They only promote tumor growth

Question 3

What is angiogenesis in the context of tumors?

Accepted Answer

The formation of new blood vessels to supply the tumor.

Answer

The spread of cancer to other organs

Answer

The death of cancer cells

Answer

The formation of immune cells

Question 4

What is the function of cancer-associated fibroblasts in the tumor microenvironment?

Accepted Answer

They facilitate communication between cancer cells and stromal cells.

Answer

They directly kill cancer cells

Answer

They only produce energy for tumor cells

Answer

They are only present in the bloodstream

Question 5

How do adipocytes influence the tumor microenvironment?

Accepted Answer

They secrete hormones and metabolites that promote tumor growth and progression.

Answer

They do not interact with tumors

Answer

They directly attack cancer cells

Answer

They only store energy

Question 6

What is the role of dendritic cells in the tumor microenvironment?

Accepted Answer

They present antigens to T cells and help initiate immune responses.

Answer

They are not involved in immune responses

Answer

They support cancer cell growth

Answer

They only kill tumor cells

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