True Or False? (1 Pt. Each)

Unit 2 Exam

Name ______Date ______

True or false? (1 pt. each)

1) The cell gets 38 ATP for each molecule of glucose in cellular respiration. ______

2) Solute diffuses from areas of high concentration to low concentration. ______

3) Water diffuses from areas of high concentration to low concentration. ______

4) Large, polar molecules diffuse passively through the cell membrane. ______

5) Insulin and glucagon are BOTH hormones. ______

6) Transport proteins are ONLY involved in active transport. ______

7) Macromolecules are made up of polymers. ______

8) The A1C test is used to diagnose gestational diabetes. ______

9) A food calorie is equal to 1,000 chemical calories. ______

10) Negative feedback loops resist change and tend toward homeostasis. ______

11) Childbirth is an example of a positive feedback loop. ______

12) GLUTs are transport proteins that facilitate insulin uptake. ______

13) Lugol’s Iodine indicates the presence of proteins. ______

14) Hair loss is a complication of diabetes. ______

15) What are the three phases of cellular respiration? (2 pts. each)

I______

II ______

III ______

16) What is the difference between dehydration synthesis and hydrolysis? Explain both processes and include an example with ATP (8 points).

______

______

______

______

______

______

______

______

______

______

______

17) Fill in the blank (1 point each)

The number of protons determines the atom’s______number.

An increase or decrease in ______makes an isotope.

______bonds are attractions between ions of opposite charge.

______bonds join atoms into molecules through electron sharing.

______molecules have a charge.

______is the unequal sharing of electrons in a molecular bond.

18) Using the food label below and information in the accompanying table, determine the % DVs of all listed items and complete the table. Show all your work (8 points).

Item / Recommended Allotment / % Daily Value
Total Fat / 65g
Cholesterol / 300mg
Sodium / 1500mg
Total Carbohydrates / 250g

19) Matching

Draw a line matching the building block in the first column to the macromolecule in the second column to an example in the third column (4 points/ 0.5 points each).

Amino Acids

Monnosacharides

Nucleotide

No single building block

Nucleic Acids

Lipids

Proteins

Carbohydrates

DNA

Tryptophan

Glycogen

Fat

20) List four complication of diabetes and explain how each is associated with the disease.

I______

______

II ______

______

III______

______

IV______

21) You have conducted a calorimetry experiment and collected the following data on your food sample (10 points).

Sample 1
Mass of H2O / 68.32
Change in H2O Temp / 0.25
Change in Food Mass / 0.21

Please complete the chart below using the information provided.

E Gained by water (calories)
E food (chemcal/g)
E food (food cal/g)
Food Energy (joules/g)
Food Energy (kilojoules/g)

• Energy gained by water (chemistry calories) = (mass of water) x (change in temperature) x (specific heat of water)
• The specific heat of water is 1 calorie ÷ (1 g x 1°C)= 1.
• Energy content of the food sample (chemistry calories) = Energy gained by water ÷ change in mass of food
• One chemistry calorie is equal to 4.186 joules.

Show ALLof your work here:

22) Fill in the blanks regarding how our bodies control blood glucose levels (BGLs)(22 points)

When blood glucose levels (BGLs) are high the ______releases ______, which allows ______to enter your ______and stores ______as ______in the liver, returning BGLs back to normal.When BGLs are low the ______stops producing ______and produces ______instead, which turns ______back into ______and BGLs return to normal.

23) Label the scenarios pictured below (hypotonic, isotonic or hypertonic). Also determine if the patient is hyperglycemic, hypoglycemic or neither (12 points/ 2 points each)

Picture one is a ______solution

(circle: hyperglycemic, hypoglycemic or neither).

Picture two is a ______solution

(circle: hyperglycemic, hypoglycemic or neither).

Picture three is a ______solution

(circle: hyperglycemic, hypoglycemic or neither).

24) Describe the test results you would expect for each patient on each test (6 points/ 2 points per patient).

Patient 1: Diagnosed with Diabetes: Glucose Tolerance Test-

Patient 2: Diagnosed with Type I Diabetes: Insulin Test-

Patient 3: Diagnosed with Type II Diabetes: Insulin Test-