Cell Biology Quiz

What is the diameter range of red blood cells?

• 7-8 µm

• 10-12 µm

• 20-30 µm

• 100-120 µm

Which type of cell is one of the largest in humans?

• Red blood cell

• Neuron

• Human ovum

• Sperm cell

What is the surface area to volume ratio of a single structure with a volume of 125 units³ and a surface area of 150 units²?

• 1.2

• 2.5

• 3.0

• 6.0

Why do cells need a high surface area to volume ratio?

• To increase their size

• To maintain homeostasis

• To decrease energy consumption

• To store more nutrients

What happens if the metabolic rate exceeds the rate of material exchange in a cell?

• The cell will grow larger

• The cell will maintain its size

• The cell will die

• The cell will divide

What is the primary function of a tissue in a multicellular organism?

• To transport materials around the body

• To perform a common function

• To act as the unit of life

• To form a complete organism

Which type of stem cell can form any cell type, including extra-embryonic tissues?

• Pluripotent

• Multipotent

• Totipotent

• Unipotent

What is the key characteristic of stem cells that allows them to continuously divide and replicate?

• Potency

• Differentiation

• Self-Renewal

• Specialization

What is the role of morphogen gradients in embryo development?

• To form the placenta

• To control gene expression

• To create new tissues

• To differentiate stem cells

Which type of stem cell is capable of self-renewal but cannot differentiate?

• Totipotent

• Pluripotent

• Multipotent

• Unipotent