Unit 1 Review Questions Flashcards
Identify and describe the different monomers associated with carbohydrates, nucleic acids and proteins.
Carbs= Monosaccharides
Provides quick energy and serves as a structural component in cells.
Nuc- Acids= Nucleotide
Stores and transmits genetic information (DNA & RNA)
Proteins= Amino Acids
Builds muscles, enzymes, hormones of the body.
How does intermolecular bonding relate to the structure of a protein?
Intermolecular bonding plays a critical role in determining the shape and function of proteins.
prime structure, secondary structure ect
Many nutritionists recommend a low -fat diet, why will they NEVER recommend a no-fat diet?
Fats are essential for many functions : Energy source , thermal insulation.cell membrane structure
recommend limiting unhealthy fats (like trans fats) while maintaining a healthy intake of good fats.
What are the main components of the cell membrane?
Follows the Fluid Mosaic Model, dynamic, flexible structure with multiple components.
Phospholipids: bilayer
Cholesterol: fluidity
Proteins:Transport, enzymatic activity.
Carbohydrates:Cell recognition and signalling.
Difference Between Glycoproteins and Glycolipids
Glycoprotein= protein + carb, in cell mem, blood
Glycolipids= lipid + carb in phospho bilayer, enzymes
Why do plant cells prefer hypotonic conditions?
t helps them maintain pressure, which keeps the plant firm and upright.
Why Are Hypotonic Conditions Dangerous for Animal Cells?
Unlike plant cells, animal cells lack a cell wall, so they cannot handle excess water intake.
Burst
Difference Between Pinocytosis and Endocytosis
Pinocytosis = Taking in fluids & small particles.
Phagocytosis = Engulfing large solid particles.
Two Reasons Cells Use Exocytosis?
Releasing Important Substances
hormones, enzymes, or neurotransmitters
Removing Waste & Toxins
Cells expel waste or harmful substances.
