If Photosynthesizing Green Algae Are Provided with CO₂ Containing Heavy

question 51

Multiple Choice

If photosynthesizing green algae are provided with CO₂ containing heavy oxygen (18O) , subsequent analysis will show that 18O is absent from which of the following molecules produced by the algae?

• A) O₂
• B) glyceraldehyde 3-phosphate (G3P)
• C) glucose
• D) ribulose bisphosphate (RuBP)

---

Definitions:

Organ Rejection

The process by which a transplant recipient's immune system attacks the transplanted organ or tissue, considering it as foreign.

Cell-Mediated Immunity

An immune response that does not involve antibodies but involves the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.

Antibody-Mediated Immunity

The aspect of immunity that involves the production of antibodies by B cells targeting specific antigens, such as pathogens or foreign substances.

Tears

The liquid secreted by the lacrimal glands of the eye, functioning in lubrication, nourishment, and protection of the eye surface.