Which of the following method of transport across a membrane does not involve a change in shape of transport protein ?

In co-transport across membrane:

Which one of the following process of transporting substances across a membrane does not involve a change in shape of the transport protein

Which of the following is a transport protein?

Which of the following is transport protein?

One of the following methods of transporation does not involve a change in extrinsic and intrinsic proteins ?

One of the following methods of transporation does not involve a change in extrinsic and intrinsic proteins ?

One of the following methods of transporation does not involve a change in extrinsic and intrinsic proteins ?

One of the following methods of transporation does not involve a change in extrinsic and intrinsic proteins ?

Active transport across biomembrane involves