This quiz contains a mix of SL and HL questions
1. Which of the following accurately describes the properties of stem cells?
  • A. Stem cells cannot divide endlessly or differentiate.
  • B. Stem cells can divide endlessly but cannot differentiate.
  • C. Stem cells can differentiate but cannot divide endlessly.
  • D. Stem cells can divide endlessly and differentiate into different types of cells.
2. Select the INCORRECT statement in the following:
  • A. Stem cells can divide repeatedly to produce large numbers of new cells.
  • B. Stem cells are not fully differentiated and can differentiate to produce different types of cells.
  • C. Stem cells are only found in plant stems
  • D. Stem cells are found in embryonic tissue
3. What is the difference between the potency of cells in animal embryos and adult tissue stem cells?
  • A. Animal blastocyst cells are multipotent, whereas stem cells in adult tissue are totipotent.
  • B. Animal blastocyst cells are pluripotent, whereas stem cells in adult tissue are multipotent.
  • C. Cells in very early-stage animal embryos are totipotent, whereas stem cells in adult tissue are pluripotent.
  • D. All stem cells are pluripotent.
4. Which of the following describes the impact of morphogens on gene expression within embryonic development of organisms such as Drosophila fruit flies?
  • A. Gradients have no effect on gene expression in early-stage embryos.
  • B. Gradients can cause all genes to be expressed uniformly within an early-stage embryo.
  • C. Gradients can cause different genes to be expressed at different levels along a gradient within an early-stage embryo.
  • D. Gradients can only affect gene expression in later stages of embryo development.
5. How is bone marrow an example of a stem cell niche?
  • A. Bone marrow provides a microenvironment for all types of stem cells.
  • B. Bone marrow provides a microenvironment that supports the maintenance and differentiation of haematopoietic stem cells.
  • C. Bone marrow is the only organ that contains adult stem cells.
  • D. Bone marrow provides a physical barrier to protect stem cells from damage.

6. With regards to metabolic requirements and SA:V, which statement(s) are true?

I. Cell volume primarily determines the metabolic requirements in unicellular organisms.
II. Cell surface area primarily determines the rate of exchange in unicellular organisms.
III. As cells get bigger, their surface area and volume increase.
IV. As cells get bigger, their surface area and volume increase, the SA:V increases
  • A. I and III only
  • B. II and III only
  • C. I, II, and III only
  • D. III and IV only

7. This image shows a diagram of a sperm cell.

Christinelmiller
CC BY 4.0
Which labelled location contains hydrolytic enzymes?
8. Which of the following adaptations increases the surface area-to-volume ratio in proximal convoluted tubule cells of the nephron?
  • A. Presence of contractile myofibrils
  • B. Invagination of the cell membrane
  • C. Presence of numerous mitochondria
  • D. Flattening of cells

9. What are the adaptations of type I and type II pneumocytes in alveoli that contribute to the overall function of the tissue?

I. Thinness to reduce distances for diffusion
II. Presence of cilia to move mucus
III. Presence of many secretory vesicles to release surfactant
  • A. I only
  • B.  II only
  • C.  I and III only
  • D. I, II and III

10. Which option is correct regarding cardiac and skeletal cells?

  Has contractile myofibrils  Myogenic Has branching structure Multinucleated
A. Both Cardiac Skeletal Both
B. Cardiac Skeletal  Both Both
C. Skeletal Skeletal Both Cardiac
D. Both Cardiac Cardiac Skeletal