Suicide only has its consequences for the person who attempts suicide

False, suicide does NOT have consequences only for the person who attempts.

Untrue. Suicide will only kill one person, but many will be affected. People who loved or were friends with the suicide victim would be in mourning. This grief could lead to a depressive episode for some, perhaps leading to suicide for them. If the person who killed themselves had a job working somewhere, the employers would need to find a new person to fill the job opening.
Suicide has a ripple effect...

Biochemistry, it deals with the chemical constitution, the breakdown and the synthesis of plant and animal products.