Chapter 4, 5 and 6 Review Flashcards
What is the fundamental unit of life?
Cell
What cell recognizes and destroys non-self cells?
Immune Cells
What structure in the cells is associated with the breakdown of foreign materials?
Lysosomes
What is the major function of ribosomes?
Protein Synthesis
What organelles allow for recycling of amino acids?
Lysosomes
What processes proteins to leave the final cistern in a vesicle?
Golgi Apparatus
What is the mitochondria responsible for?
ATP Production
What are the threads or granules in non dividing cells?
Chromatin
What does the nucleolus mainly consist of?
rRNA
What are projections that move materials and mucus?
Cilia
What are skin cells held by?
Desmosomes
What is the cell extension that assists in absorption?
Microvilli
What is the tail-like structure that projects the sperm?
Flagella
DNA is a major component of what organelle?
Nucleus
What is the structure that separates the inside and outside contents?
Plasma Membrane
Which organelle is pinched-off from the Golgi Apparatus?
Lysosome
What is a nonmembraneous cell?
Ribosome
What is a membraneous cell?
Lysosome
What is the engine of the cell?
Microfilaments
What type of cell connect acts as a “spot weld”?
Spot Desmosomes
What are the heart muscle connections?
Gap Junctions
What is facilitated diffusion?
Passive transport that uses carriers to attract and bind to the solute, change shape and release the solute out the other side of the carrier
What does diffusion require?
Concentration Gradient
Peptide Bond bind together molecules of what?
Amino Acids
Which lipid is part of Vitamin D?
Steroids
The element that is present in all proteins but not carbs is?
Nitrogen
Is salts one of the major groups of organic substances?
No
How many total amino acids are there?
21
How many amino acids can be produced naturally by the body? (Nonessential)
13
How many amino acids can NOT be produced naturally? (Essential)
8
What are the 4 levels of protein structure?
Primary, Secondary, Tertiary, and Quaternary
What is the primary protein structure?
Number, kind, and sequence of amino acids
What is the secondary protein structure?
polypeptide is coiled and bent into helices and pleated sheets (motifs)
What is the tertiary protein structure?
twisted further, includes domains
What are tissue hormones?
Prostaglandins
What is hydrophilic?
Water-loving
What is hydrophobic?
Water-fearing
What makes up the bilayers of the cell membrane?
Phospholipids
What is the formation of sucrose that involves the removal of a water molecule?
Dehydration Synthesis
What are the 4 major organic groups?
Lipids, Proteins, Carbs, and Nucleic Acid
What is the final functional shape of the protein?
Native State
What is DNA composed of?
Sugar, phosphate, and nitrogenous base
What is the good cholesterol?
High Density Lipids (above 40)
What is the bad cholesterol?
Low Density Lipids (Below 40)
What are the building blocks of lipids?
Fatty acids and glycerol
What is hydrolysis an example of?
Catabolism
What does Rough ER function in?
Protein Synthesis and intracellular transportation
What act as identification markers?
Glycoproteins
What are the smallest cell fibers?
Microfilaments
What recycles amino acids?
Lysosomes
What has a double membrane structure that is contoured into cristae?
Mitochondria
What coordinates the building and breaking apart of microtubules in the cell?
Centrosome
What is another name for centrosomes?
Microtubule Organizing Center (MTOC)
What transport processes requires energy?
Active Transport
What transport process does NOT require energy?
Passive Transport
What is the measurable difference in concentration from one area to another?
Concentration Gradient
What process includes moving materials from low to high concentration?
Active Transport
What is hypertonic?
When the solute is greater on the outside of the cell
What is isotonic?
When the solute is the same as the cell
What is hypotonic?
When the solute is less than the cell
What is the diffusion of water through a selective permeable membrane?
Osmosis
What is a solute?
Dissolved Particles
What is the process from high to low concentration?
Passive Transport
How do you measure potential osmotic pressure?
It is not measureable
What are water channels that permit rapid osmosis?
Aquaporins
What uses pumps, such as a calcium or sodium-potassium pumps, for transportation?
Active
What is endocytosis?
Where the plasma membrane traps some extracellular material and brings it into the cell in a vesicle
What is it when large particles are engulfed by the plasma membrane?
Phagocytosis
What is it when fluid and substances are dissolved in the cell?
Pinocytosis
What are chemical catalysts that reduce activation energy needed to speed up a reaction?
Enzyme
What is a catalyst?
Chemical that reducers the activation energy
How do you classify an enzyme?
1st part signifies the substrate and ends in -ase
What is the affect enzyme action that changes the shape of an enzyme molecule?
Allosteric Effector
What are the 3 pathways for cellular respiration?
Glycolysis, Citric Acid Cycle, Electron Transport System
What is another name for Citric Acid Cycle?
Krebs Cycle
Which pathways require oxygen?
Krebs Cycle and ETS
Which pathway does NOT require oxygen?
Glycolysis
What are the start and end products of glycolysis?
Glucose to Pyruvic Acid
What are the start and end products of Krebs Cycle?
Pyruvic Acid to NAD
What are the start and end products of ETS?
NAD to ATP
Where does glycolysis occur?
Cytosol
Where does the Krebs Cycle occur?
Mitochondria
Where does ETS occur?
Mitochondria
What are functions of enzymes?
specific in their actions can alter their function by changing the shape of the molecule, or synthesize as inactive proenzymes.