PART A QUESTIONS:

Choose 1 variable from the list below:

ï‚· low blood calcium levels

ï‚· low blood sodium levels

Then, perform research to answer the following questions aboutthe variable you chose.

A) Determine the negative feedback cycle by which the variableyou chose is restored to normal blood levels. List the 5 componentsof the cycle in order, like this:

1. Variable = choose 1 from list above

2. sensor/receptor =

3. control center =

4. effector(s) =

5. physiological response(s) =

B) Name at least 3 organ systems involved in regulating thevariable that you chose and describe HOW each system is involved.Hint: use Chapter 9 covering the endocrine system as one of yourreferences. NOTE: this question asks for the names &descriptions of 3 SYSTEMS (ex. cardiovascular system), notindividual organs (ex. heart)

. II. A&P: The human body is capable of performing a varietyof functions due to its complex structural organization (anatomy).Choose 2 human organs, ex. stomach, eye, triceps muscle, heart,etc. For each organ that you chose:

A) List 5 words which describe the organ's anatomy ~ such asshape, size, structure, color, location, texture, tissuecomposition and organization, solid/hollow, hard/soft ~ these areexamples of anatomical (structural) descriptors; words thatdescribe anatomy are usually adjectives

B) List at least 2 functions of each organ that you chose.Physiology includes what the organ does, why the body needs it, andthe jobs achieved by that organ related to serving the body as awhole in order to maintain health ~ such as ability to contract,digest, secrete, communicate, regulate, transport, clean, protect,etc. ~ functions are usually verbs (action words)

Part B: Biochemistry (Ch. 2) (20 points)

INTRODUCTION: Use your textbook (Ch. 2) and reliable websites toanswer the following question related to biochemistry in the humanbody. Write your answers in complete sentences with correctspelling and grammar. Provide definitions for any scientific termsincluded in your answer.

PART B FORMAT EXAMPLE: For each numbered item, write the number,the topic of the question (in UPPER CASE font) and your answer(s)to the questions. Follow the example below.

1. ELEMENTS

A answer

B. answer

2. TRACE ELEMENTS

Write TRUE or FALSE and justify your answer

3. etc.

PART B QUESTIONS:

1) ELEMENTS

A. Name the 5 most abundant elements in the human body, in orderof most abundant to least.

B. Create a mnemonic to remember this information. HINT: referto this website to learn about mnemonics:https://literaryterms.net/mnemonic/

2) TRACE ELEMENTS TRUE or FALSE: Trace elements are not requiredfor human life. Justify your response by defining what a “traceelement” is and discussing 2 examples that support your answer.

3) CHEMICAL EQUATION

A. Balance this equation: C6H12O6 + O2 → CO2 + H2O + ATP

B. Which chemicals are the reactants (substrates)? Namethem.

C. Which are the products? Name them.

D. What is the name of this chemical reaction?

E. Cells must be able to perform this chemical reaction TO STAYALIVE. Why is this reaction critical for cell life?

F. This reaction produces the most common cellular waste productin the body – carbon dioxide. High levels of carbon dioxide causeblood pH to fall, making plasma acidic – this can lead to metabolicproblems. How does the body get rid of CO2?.

4) SOLUTIONS Plasma is the liquid component of blood (cells havebeen removed). It is mostly made of water plus solutes. It is oneof many aqueous solutions in the human body.

A. What is the solvent in plasma?

B. Name at least 5 solutes in plasma.

C. In addition to blood (plasma), there are other water-basedsolutions present inside the human body or secreted/excreted fromthe body which are water-based. Name 3 other aqueous solutions thatthe human body produces.

5) SUBATOMIC PARTICLES & ATOM STABILITY

A. When is an atom most stable?

B. Which subatomic particles participate in bond formation?

C. Where are these particles located?

6) CHEMICAL BONDS

A. Name and define the 3 types of chemical bonds.

B. Which type of bond is the strongest? Which is theweakest?

7) MACROMOLECULES Carbohydrates, proteins, and nucleic acids aremacromolecules which are polymers. These macromolecules are in ourfood, bloodstream, and the structural components of the cell. Namethe monomers (smallest building blocks) of each type ofmacromolecule below:

A. Carbohydrates:

B. Proteins:

C. Nucleic acids:

*Can someone please answer all of these I have no idea