Answer
Hydrogen ion movement form ATP in ATP synthase .
Explanation:
 ATP synthase is present in mitochondrial membrane when pass hydrogen ion in to lumen of mitochondria and due to proton gradient generate ATP molecule with pass of hydrogen ion into lumen ATP is formed from ADP and inorganic phosphorous molecule . Passing of three hydrogen io generate one ATP molecule .So movement of hydrogen ion is directly related to ATP synthases.
 
        
             
        
        
        
Answer:
Clomid tricks the body because it tells the brain that estrogen levels are low, thereby leading to higher production of this hormone  
Explanation:
There are many types of hormones that are regulated by the negative feedback mechanism (where hormone feeds back to decrease its production). Clomid is a drug used to treat female infertility by making the body think that the concentration of estrogen is low, which induces the secretion of Follicle-stimulating (FSH) and luteinizing (LH) hormones by the pituitary gland. The estrogen hormone exerts negative feedback on the Gonadotropin-releasing (GnRH) hormone, which is responsible for the release of FSH and LH. High FSH levels stimulate the growth of follicles in the ovaries, which will be released during ovulation.
 
        
             
        
        
        
Answer:
Option (2).
Explanation:
Ames test is used to identify the mutageneicity of the compound. The bacteria are treated with chemicals in the nutritive environment to determine whether the substance can acts as a mutagen or not. 
The bacteria that can restore the biosyntheic activity in the environment can be considered as mutagen. The mutant bacteria can be easily identified in the Ames test.
Thus, the correct answer is option (2).
 
        
             
        
        
        
Answer - Well to put it in short terms. 
Cells such as water cells or aquatic microorganisms need and required to have a large surface area increased. Because this helps them stay afloat without spending much amount of energy to float.