Which type of channels open and close in response to changes in membrane potential?

Which type of channels are always open?

1.3 Provide me with two facts you found interesting about the artist Chuck Close. (2)

1.3 Provide me with two facts you found interesting about the artist Chuck Close. (2)

2.3 Provide a term for the colour scheme used in this picture. (2)   Right click and open the following image in a new tab.    

1.2 Explain the following technique used in art for drawing portraits in the right proportion when working from a photo reference. Right click and open the following image in a new tab.   (3)

2.3 Provide a term for the colour scheme used in this picture. (2)   Right click and open the following image in a new tab.    

1.2 Explain the following technique used in art for drawing portraits in the right proportion when working from a photo reference. Right click and open the following image in a new tab.   (3)

1.7 How many elements of art are there? (1)   A – Five                                                                                                     B – Seven                                                                                                 C – Ten                                                                                                  

1.7 (In the image: Louvre Museum in Paris France) Geometric shapes are vital for architects when designing and constructing buildings like the Louvre? (1)   Right click and open the following image in a new tab.