__________are the microbodies, which take part in glyoxylate pathway, bounded by a single membrane and are usually present in germinating fatty seeds.
Important Questions on Cell: The Unit of Life
A red blood corpuscle (RBC) was kept in a solution and treated so that it became inside-out. What will be the polarity of the phospholipid bilayer in this cell?
A student made a pictorial representation of a eukaryotic cell membrane and labelled the components as follows.
The student has made errors while labelling the components of membrane. Which of the following hold true regarding the error?
(i) Protein A should be labelled as trans-membrane protein only and not as integral protein.
(ii) The polarity of the protein should be reversed because the cytosolic phase always shows reducing environment.
(iii) Position of cholesterol molecule should be close to polar region as it contains a polar group.
(iv) Protein should be labelled as integral membrane protein and not as peripheral glycoprotein.
(i) The surface area available for cellular functions in a prokaryotic cell is less than that in a eukaryotic cell.
(ii) The total genome size of a prokaryotic cell is always less than that of a eukaryotic cell.
(iii) Unlike eukaryotes, no special respiratory organelles are found in prokaryotes. Hence, they respire at a much lesser rate than eukaryotes.
(iv) Eukaryotic cells show various membrane bound organelles such as chloroplasts and nucleus while ribosomes are the only membrane bound organelles found in prokaryotes.
