JIPMER 2013
- Exam
- JIPMER
- Year
- 2013
- Subject
- Botany
- Chapter
- Photosynthesis in Higher Plants
JIPMER 2013 · Botany · Photosynthesis in Higher Plants
Which of the following characteristics is are exhibited by C_4...
Which of the following characteristics is are exhibited by -plants?
I. Kranz anatomy.
II. The first product of photosynthesis is oxaloacetic acid.
III. Both PEP carboxylates and ribulose biphosphate carboxylate act as carboxylating enzymes.
The correct option is
Options
- AI and III, but not II
- BI and II, but not III
- CII and III, but not I
- DII and III
Correct answer
D. II and III
Step-by-step solution
-plants have an alternative fixation pathway called Hatch and Slack cycle. These plants have Kranz anatomy in leaf, where vascular bundles are surrounded by bundle sheath.
In cycle light reaction occurs in, mesophyll chloroplast by PEP carboxylaes and the assimilation of takes place in, i.e., dark phase in bundle sheath chloroplast by Rubisco.