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Q1-3: The diagram sows some of the different types of cells in a human body. The cells originate from embryonic stem cells.

 

stem cell diagram

 

Haileyfournier | CC-BY-SA 4.0
1. Stem cells are ...
  • A. differentiated
  • B. undifferentiated
  • C. only found in the stems of plants
  • D. only found in human embryos
2. Which of the following is not true?
  • A. Stem cells divide my mitosis
  • B. Stem cells have the potential to divide many times
  • C. Stem cells divide by meiosis
  • D. Stem cells are found in the bone marrow of adult humans
3. Why are human embryonic stem cells so useful?
  • A. They have the potential to divide
  • B. They are easy to grow and culture in a laboratory
  • C. The stem cells can be stimulated to differentiate into specialised cells
  • D. All of the above
Q4-6: Bone marrow is soft spongy tissue found inside bones. Blood cells are made and stored in the bone marrow. The blood cells that divide to make all the different types of blood cell are a type of stem cell.  
4. Which of the following is not a blood cell?
  • A. Red blood cell
  • B. Lymphocyte
  • C. Phagocyte
  • D. Platelet
5. If a person has a disease that affects the bone marrow, such as leukaemia a bone marrow transplant may be carried out. Healthy stem cells are transfused into the person. 

 

 

To produce new blood cells the stem cells must:

bone marrow transplant diagram
Mugwump12 | CC-BY-SA 3.0
  Divide by .. produce new types of blood cells by ..
A mitosis staying the same
B meiosis differentiation
C mitosis differentiation
D meiosis staying the same
6. Why is a patient who receives stem cells given drugs to suppress their immune system?
  • A. The recipient might reject the donor cells
  • B. The donor cells may develop into a tumour
  • C. The donor cells may introduce a virus into the recipient
  • D. The recipient has too many white cells
7+8: Orchids are grown commercially. To get lots of identical plants like the one in the photograph plants are cloned using stem cells from the parent plant.  

 

 orchid
7. In plants which tissue contains stem cells?
  • A. Spongy mesophyll
  • B. Meristematic
  • C. Epidermis
  • D. Xylem
8. Stem cells in plants can be used to produce clones of plants quickly and economically.

Which of the following is not an advantage of using stem cell technology in plants?

  • A. Viral diseases may be spread through a crop
  • B. Rare plant species can be prevented from becoming extinct
  • C. Crop plants with disease resistance can be cloned to produce large numbers of identical plants for farmers.
  • D. New varieties of plant can be cloned and commercially developed.

9. Select the correct answer in comparing stem cells in plants with those in humans.

  plants humans
A Cells can divide and differentiate throughout a plant’s life Cells can divide and differentiate throughout a human’s life
B Cells can divide and differentiate throughout a plant’s life Only embryonic stem cells can divide and differentiate into any type of cell
C Cells can divide and differentiate only in the embryonic stage of a plant’s life Cells can divide and differentiate throughout a human’s life
D Cells can divide and differentiate only in the embryonic stage of a plant’s life Only embryonic stem cells can divide and differentiate into any type of cell
10. In some countries stem cell research is banned. This is because it is believed to be ..
  • A. too complicated
  • B. unethical
  • C. too expensive
  • D. too risky