Practice Quiz

IB Biology Exam Prep - Question List

Select how would you like to study

Study Mode Free Daily Question Test Mode
86.
One application of gene therapy is the delivery of p53 genes to cells. These genes cause cells that malfunction to undergo programmed death. This method would be most effective at:
  1. Preventing cancer from being inherited.
  2. Treating polygenic disorders related to cancer.
  3. Inhibiting the development of cancerous tumors.
  4. Improving the response of healthy cells to chemotherapy.
See answer
87.
A germinating fern spore will develop into:
  1. A rhizoid.
  2. A gametophyte.
  3. An archegonium.
  4. A sporophyte.
See answer
88.
The double fertilization that is unique to the reproduction of angiosperms has which of the following consequences?
  1. Polyploidy and hybridization are more common in plants than in animals.
  2. Two pollen grains are necessary to fertilize each ovum.
  3. Zygotes form during both the gametophyte and sporophyte generations.
  4. Food storage tissue in seeds is triploid.
See answer
89.
An important difference in how aquatic autotrophs and land plants carry out photosynthesis is that only land plants:
  1. Receive carbon dioxide through specialized structures.
  2. Have chlorophyll a, which allows them to absorb red and blue light.
  3. Produce NADPH during the light reactions.
  4. Use a chemiosmotic mechanism for producing ATP.
See answer
90.
Closure of stomata immediately affects a plant's:
  1. Root pressure.
  2. Transport of glucose.
  3. Rate of water loss.
  4. Frost resistance.
See answer

Select how would you like to study

Study Mode Free Daily Question Test Mode