The title of the graph is, Effects of Enzyme A. The label to the left of the graph is, Free Energy. The vertical line axis is an upward-pointing arrow. The label at the bottom of the graph is, Reaction Progress. The horizontal line
axis is right-pointing arrow.
The graph shows two curves. The top curve is a solid line that starts on the horizontal axis and forms a
bell-shaped curve from left to right. The label on the top curve is, without Enzyme A. The bottom curve is a
dashed line that starts on the horizontal axis and forms a bell-shaped curve from left to right. The label on the
dashed-line curve is, with Enzyme A. The title of the diagram is, Enzyme A.
The left side of the diagram shows an open circle and a hexagon inside of an irregular shape. The open circle
and the hexagon are labeled, active sites. The right side of the diagram shows an open circle and a hexagon.
The open circle and the hexagon are labeled, substrates."
15.
Part A. Explain how Enzyme A acts as a catalyst in the reaction. Be sure to include energy and time in your
answer.

Part B. Conditions around an enzyme change and affect the shape of the enzyme's active sites. Predict how
this would affect the enzyme's ability to catalyze the reaction.

what's the question?

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.