Which of the following cell organelles is associated with photorespiration?
Mitochondria
Peroxysome
Chloroplast
All of these
B.
Peroxysome
Photorespiration (C2-cycle) is a special type of respiration shown by many green plants (C3-plants) when they are exposed to light. It is a light-dependent process during, which O2 is used and CO2 is released. The process of photorespiration takes place only in chlorophyllous tissues of plants. Therefore, the main site for photorespiration is chloroplast. But mitochondria and peroxysomes are also required to complete the process.
Which of the following tissues consist of living cells?
Vessels
Tracheids
Companion cell
Sclerenchyma
Which of the following cell organelles stores hydrolytic enzymes?
Centriole
Lysosome
Chromoplast
Chloroplast
Calyptra develops from
Venter wall of archegonium
Outgrowth of gametophyte
Neck wall of archegonium
Paraphysis of the archegonial branch
Nucleotides are formed by
purine, sugar and phosphate
purine, pyrimidine and phosphate
purine, pyrimidine sugar and phosphate
pyrimidine, sugar and phosphate
A monocarpic plant is one, which
has only one carpel
Flowers once in a life-time
Produces only one seed
Produces only one fruit
Which of the following plant cells is not surrounded by a cell wall?
Root hair cell
Stem hair cell
Gamete cell
Bacterial cell
