Study the following statements

a) Ribosomes and nucleolus are not membrane bound structures.

b)Tonoplast facilitates transport of ions against concentration gradient into the vacuole.

c) Peroxisomes are membrane bound structures and play role in the synthesis of phospholipids.

d) Lipids are converted into carbohydrates by glyoxysomes.

From the above, identify the true statements.      

Ribosomes and nucleolus are not membrane bound structures.

Tonoplast facilitates transport of ions against concentration gradient into the vacuole.

Peroxisomes perform photo-respiration in association with chloroplast and mitochondria in plants. They are also involved in $\mathrm{\beta }$ oxidation of fatty acids, synthesis of phospholipids and detoxification of H₂O₂.

Glyoxysome are involved in conversion of fats into carbohydrate (Gluconeogenesis). They originate from ER.