IB Bio Year 1 Final Exam with complete
solutions
Monosaccharide Example - .......🔷ANSWERS🔶......✔✔ Glucose, Ribose, Deoxyribose, Fructose
Disaccharide Example - .......🔷ANSWERS🔶......✔✔ Sucrose, Maltose, Lactose
Polysaccharide Example - .......🔷ANSWERS🔶......✔✔ Starch, Glycogen, Cellulose, Chitin
Carbohydrate Structure - .......🔷ANSWERS🔶......✔✔ 2H:1O/ CnH2On
Carbohydrate Function - .......🔷ANSWERS🔶......✔✔ 1. Immediate energy source
2. Energy storage for later use
3. Raw material for building other molecules
4. Important role in cell membranes recognition
Lipids Function - .......🔷ANSWERS🔶......✔✔ 1. Nutrition
2. Storage
3. Hormones
4. Cell membranes
Phospholipids Structure - .......🔷ANSWERS🔶......✔✔ Consist of phosphate (P), glycerol (P), and
two fatty acid tails (NP). Fatty Acid tails are hydrophobic, phosphate is hydrophilic
Phospholipids Function - .......🔷ANSWERS🔶......✔✔ Create a barrier in H2O, with a bubble called
a micelles, forming a bilayer with heads on the outside and tails on inside -> lets NP molecules in
the blood
, Triglycerides Structure and Formtion - .......🔷ANSWERS🔶......✔✔ Formed by condensation
reaction (OH + O) w/ 3 fatty acids + glycerol
Saturated Fatty Acid - .......🔷ANSWERS🔶......✔✔ - have mostly C-C bonds in fatty acid chains
- Typically solid at room temperature
- Animal Resources
- Straight chain
Unsaturated Fatty Acid - .......🔷ANSWERS🔶......✔✔ - C=C double bonds
- Typically liquid at room temp
- Made from plant resources
- Normally left chain
Cis-unsaturated - .......🔷ANSWERS🔶......✔✔ - Naturally occurring
- Hydrogens on same side of double bond
Trans-unsaturated - .......🔷ANSWERS🔶......✔✔ - Not natural and result of human processing
- Hydrogen on opposite side of double bond
BMI Formula - .......🔷ANSWERS🔶......✔✔ Mass (kg)/Height (m)^2
- Below 18.5 -> underweight
- 18.5-24.9 -> Normal
- 25-29.9 -> Overweight
30.0 and up -> Obese
Protein Examples - .......🔷ANSWERS🔶......✔✔ Hemoglobin, Actin & Myosin, Insulin,
Immunoglobulins, Amylase, Rubisco, Rhodopsin, Collagen, Spider Silk
solutions
Monosaccharide Example - .......🔷ANSWERS🔶......✔✔ Glucose, Ribose, Deoxyribose, Fructose
Disaccharide Example - .......🔷ANSWERS🔶......✔✔ Sucrose, Maltose, Lactose
Polysaccharide Example - .......🔷ANSWERS🔶......✔✔ Starch, Glycogen, Cellulose, Chitin
Carbohydrate Structure - .......🔷ANSWERS🔶......✔✔ 2H:1O/ CnH2On
Carbohydrate Function - .......🔷ANSWERS🔶......✔✔ 1. Immediate energy source
2. Energy storage for later use
3. Raw material for building other molecules
4. Important role in cell membranes recognition
Lipids Function - .......🔷ANSWERS🔶......✔✔ 1. Nutrition
2. Storage
3. Hormones
4. Cell membranes
Phospholipids Structure - .......🔷ANSWERS🔶......✔✔ Consist of phosphate (P), glycerol (P), and
two fatty acid tails (NP). Fatty Acid tails are hydrophobic, phosphate is hydrophilic
Phospholipids Function - .......🔷ANSWERS🔶......✔✔ Create a barrier in H2O, with a bubble called
a micelles, forming a bilayer with heads on the outside and tails on inside -> lets NP molecules in
the blood
, Triglycerides Structure and Formtion - .......🔷ANSWERS🔶......✔✔ Formed by condensation
reaction (OH + O) w/ 3 fatty acids + glycerol
Saturated Fatty Acid - .......🔷ANSWERS🔶......✔✔ - have mostly C-C bonds in fatty acid chains
- Typically solid at room temperature
- Animal Resources
- Straight chain
Unsaturated Fatty Acid - .......🔷ANSWERS🔶......✔✔ - C=C double bonds
- Typically liquid at room temp
- Made from plant resources
- Normally left chain
Cis-unsaturated - .......🔷ANSWERS🔶......✔✔ - Naturally occurring
- Hydrogens on same side of double bond
Trans-unsaturated - .......🔷ANSWERS🔶......✔✔ - Not natural and result of human processing
- Hydrogen on opposite side of double bond
BMI Formula - .......🔷ANSWERS🔶......✔✔ Mass (kg)/Height (m)^2
- Below 18.5 -> underweight
- 18.5-24.9 -> Normal
- 25-29.9 -> Overweight
30.0 and up -> Obese
Protein Examples - .......🔷ANSWERS🔶......✔✔ Hemoglobin, Actin & Myosin, Insulin,
Immunoglobulins, Amylase, Rubisco, Rhodopsin, Collagen, Spider Silk
