Greta is a 70-year-old woman who has osteoporosis and whose back has a hunched appearance. what term would describe her condition?

Scoliosis

Explanation:

Scoliosis is an abnormal curvature of the spine to one side of the trunk, determined by the rotation of the vertebrae. Deformity can be seen by looking at the person from the back.

In other words: the main feature of scoliosis is the presence of a lateral curvature in the three-dimensional plane of movement (left / right, front / back and around the axis itself by rotation of a vertebra) which gives it the appearance of a C (a single curvature) or an S (more than one curvature).

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!