Podcast
Questions and Answers
What are the two main parts of the cell?
What are the two main parts of the cell?
- Nucleus and cell membrane
- Cytoplasm and cell membrane (correct)
- Plasma membrane and cytoplasm
- Nucleus and cytoplasm
Which of these are examples of organelles?
Which of these are examples of organelles?
- Mitochondria, Golgi complex, lysosomes (correct)
- Glycocalyx, integral proteins, transmembrane proteins
- Plasma membrane, phospholipids, cholesterol
- Cytosol, ribosomes, endoplasmic reticulum
What is the function of the cell membrane?
What is the function of the cell membrane?
The cell membrane regulates the flow of materials into and out of the cell. It acts as a gatekeeper, controlling which substances can enter and exit the cell.
Which of the following is true about the structure of the plasma membrane?
Which of the following is true about the structure of the plasma membrane?
The nucleus is the most vital part of the cell, and its damage can cause birth defects.
The nucleus is the most vital part of the cell, and its damage can cause birth defects.
What are the three main types of lipids found in the plasma membrane?
What are the three main types of lipids found in the plasma membrane?
What is the function of the glycocalyx?
What is the function of the glycocalyx?
Which of the following is a characteristic of integral proteins?
Which of the following is a characteristic of integral proteins?
The glycocalyx is made up of carbohydrates only.
The glycocalyx is made up of carbohydrates only.
Match the following directional terms with their definitions:
Match the following directional terms with their definitions:
Flashcards
String
String
A sequence of characters, like letters, numbers, or symbols, used to represent text or data.
Character
Character
A data type that represents a single character, like a letter or a symbol.
Trimming a string
Trimming a string
The process of finding and removing spaces, tabs, and newline characters from the beginning and end of a string.
Word
Word
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String searching
String searching
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String concatenation
String concatenation
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Literal String
Literal String
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Escape sequence
Escape sequence
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String conversion
String conversion
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String comparison
String comparison
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Study Notes
RUQ (8 Organs)
- Duodenum
- Gallbladder
- Liver
- Pancreas
- Stomach
- Right Adrenal Gland
- Right Kidney
- Transverse Colon
RLQ (5 Organs; 3 Repro Organ)
- Appendix
- Ceccum
- Large intestines
- Right Reproductive Organ (ovary, fallopian tube, spermatic cord)
- Right Ureter
Nucleus
- Innermost part of the cell
- Contains genetic material
- Houses DNA
- Contains chromosomes which contain genes
- Genes control cellular structure and function
- Nucleus is sensitive to radiation
- Radiation can cause mutations or gene deletion
Cell Structure and Function
- Cell is the basic living structural and functional unit
- Cell biology/cytology studies cellular structure and function
- Cell division is the process where cells arise from existing cells
- Parts include nucleus, cytoplasm, and cell membrane (plasma membrane)
- Animal cells are 10-30 micrometers in size
Plasma Membrane
- Outer layer of the animal cell
- Gatekeeper of the cell
- Controls the flow of materials in and out of the cell
- Communicates with other cells
- Made up of a lipid bilayer
- 3 layers: Phospholipids (75%), cholesterol (20%), glycolipids (5%)
- Phospholipids have a polar head and nonpolar tails
- Polar heads interact with water (hydrophilic)
- Nonpolar tails do not interact with water (hydrophobic)
- Cholesterol is weakly amphipathic
- Glycolipids have carbohydrate groups
- Has integral proteins embedded in the lipid bilayer
- Many integral proteins are transmembrane proteins
- Glycocalyx (extensive sugar coat) on integral proteins is hydrophilic
Cell Parts and Locations
- Superior - towards the head
- Inferior - away from the head/towards the bottom
- Anterior - front
- Posterior - back
- Ipsilateral - same side
- Contralateral - opposite side
- Proximal - near the point of origin
- Distal - far from the point of origin
Superficial vs Deep
- Superficial - towards the surface (e.g., epidermis)
- Deep - away from the surface (e.g., muscles)
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