Using stem cells in medicine: potential benefits, risks and ethical issues | Starter Quiz | Oak National Academy

True or false? Egg cells contain a nucleus.

• true

• false

Answer explanation

True, egg cells do have a nucleus.

What is the role of the immune system?

• to produce hormones

• to transport materials

• gas exchange

• to digest food

• to fight infection

Answer explanation

The role of the immune system is to help your body fight infection. White blood cells, including phagocytes and lymphocytes, are part of the immune system.

Match the specialised cell to its adaptations that help it carry out its role.

• sperm cell

• Many mitochondria to provide energy for contraction.

• red blood cell

• A tail to help it move.

• palisade mesophyll cell

• Contains chloroplasts for photosynthesis.

• muscle cell

• Biconcave shape to provide a large surface area for diffusion.

Answer explanation

Specialised cells have features that help them carry out their role.

True or false? Embryonic stem cells can only differentiate into a limited and related number of cells.

• true

• false

Answer explanation

Embryonic stem cells can differentiate into any type of cell but adult stem cells can only differentiate into a limited number of cell types.

The Oak students are discussing diabetes. Who is incorrect?

• 
• 
• 
• 

Answer explanation

Andeep and Lucas are incorrect. Type 1 diabetes is a lifelong condition where the body's immune system attacks and destroys the cells that produce insulin.

Select the option which correctly describes where bone marrow is found and one of its roles.

• Bone marrow is found in bones, where it produces new bones.

• Bone marrow is found on the surface of bones, where it helps them grow.

• Bone marrow is found inside bones, where it produces red and white blood cells.

• Bone marrow is found on the surface of bones, where it provides strength.

• Bone marrow is found inside the bones, where it provides strength.

Answer explanation

Bone marrow is found inside bones and has a variety of functions including producing red and white blood cells. White blood cells are an important part of the body's immune system.