Even though peroxisomes chloroplasts and mitochondria import

Even though peroxisomes, chloroplasts and mitochondria import proteins via a translocon complex they do it differently. Which ofthe following is TRUE about protein import into specialized organelles? Multiple Choice peroxisome uses a single translocator complex because they are single membrane compartments while A chloroplasts and mitochondria use two translocator complexes to transport proteins across two membrane lipid bilayers chloroplasts and mitochondria denature proteins while transporting them across TOC/TIC or TOM/TIM complexes

Solution

Answer= Protein import into specialized organelles

True statement is

B] Chloroplast & mitochondria denaures proteins while transporting them across TOC/TIC or TOM / TIM complexes

Explaination= Vast majority of chloroplast proteins are synthesized in precursor form on cytosolic ribosomes

Chloroplast precursor proteins have cleavable N terminal targeting sequence called transit peptide

Translocation of proteins across the envelope is achieved by action of Toc-tanslocon of outer envelope chloroplast

& tic

Similarly mitochondria has TOM /TIM