Question 1

Some stem cells divide and give rise to phagocytes.

Where in the human body do these stem cells divide?

1 - blood

2 - bone marrow

3 - lymph nodes

  A  

1, 2, and 3

  B  

1 and 3 only

  C  

2 only

  D  

3 only

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Question 2

Which feature of stem cells enables them to replace cells in tissues such as the skin?

  A  

they are undifferentiated cells that are present at birth


  B  

they differentiate to form skin cells

  C  

they divide by mitosis to supply some cells that can differentiate

  D  

they have the full number of chromosomes

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Question 3

Mesenchymal stromal cells (MSCs) are stem cells found in human wisdom teeth.

MSCs can differentiate into three cell types: chondrocytes, osteoblasts, and adipocytes.

To which category of stem cells do MSCs belong?

  A  

pluripotent

  B  

multipotent

  C  

totipotent

  D  

unipotent

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Question 4

Embryonic stem cells can be used in cell replacement therapies.

Embryonic stem cells can differentiate into any type of body cell but cannot form a whole organism.

What is the type of stem cell being described?

  A  

pluripotent

  B  

totipotent

  C  

unipotent

  D  

multipotent


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Question 5

Which statement is not true about adult stem cells?

  A  

they are found in bone marrow


  B  

they are not specialised


  C  

they are totipotent

  D  

they can be used as a renewing source of undifferentiated cells

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Question 6

Which statement correctly explains why meristems can differentiate into xylem vessels in plant stems?

  A  

meristems are living and unspecialised

  B  

meristems are living and specialised

  C  

xylem vessels are dead and specialised


  D  

xylem vessels are dead and unspecialised


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Question 7

Several cell types develop from haematopoetic stem cells in the bone narrow.

Which statement correctly describes haematopoetic stem cells?

  A  

they are neither pluripotent nor multipotent

  B  

they are pluripotent but not multipotent

  C  

they are both pluripotent and multipotent

  D  

they are multipotent but not pluripotent

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Question 8

Rheumatoid arthritis is a long-term condition that causes pain, swelling, and stiffness in the joints.

What explains why stem cells are a potential source of treatment for rheumatoid arthritis?

  A  

stem cells can be harvested from the umbilical cords of newborn babies

  B  

stem cells are cheaper than other drug-based therapies

  C  

stem cells allow regeneration of a variety of tissue types


  D  

stem cells can be obtained from embryos without any ethical concerns

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Question 9

Sperm cells are an example of a specialised cell.

Which statement correctly describes one specialisation of a sperm cell?

  A  

tail contains flagellum that generates ATP

  B  

head contains chromosomes in homologous pairs

  C  

acrosome contains enzymes to digest the outer portion of the egg cell

  D  

midpiece contains mitochondria that enter the egg cell

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Question 10

A student observed a stained blood smear using a light microscope and wrote the following description about one of the blood cells:

1 - large cell

2 - nucleus with three lobes stained dark blue

3 - cytoplasm stained pale blue

4 - cell-surface membrane present

Which blood cell is being described?

  A  

monocyte

  B  

neutrophil

  C  

lymphocyte

  D  

erythrocyte

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Question 11

Which animal cells would have the most Golgi apparatus?

  A  

ciliated epithelial cells


  B  

goblet cells

  C  

red blood cells

  D  

smooth muscle cells

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Question 12

Which type of cell has a large number of glycoproteins on the cell-surface membrane?

  A  

ciliated cell


  B  

goblet cell

  C  

lymphocyte

  D  

red blood cell

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Question 13

Which organelle is present in large quantities in ciliated epithelial cells?

  A  

golgi body

  B  

lysosomes

  C  

mitochondria

  D  

rough endoplasmic reticulum

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Question 14

What is the potency of adult bone marrow stem cells?

  A  

multipotent

  B  

pluripotent

  C  

totipotent

  D  

unipotent

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