Concentration gradients Study guides, Revision notes & Summaries
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Zoology 570- Unit 4 test questions and answers(with diagrams).
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what is kinesin used for? 
walk along microtubules (towards plus end) 
 
 
what type of distances do kinesin move items? 
long distances 
 
 
 
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what are the two types of dineins? 
cytoplasmic, cilia/flagella 
 
 
what do cytoplasmic dinein do? 
move inwards in cell 
 
 
what is an example of cilia movement? 
moving dust out of lungs 
 
 
what is an example of flagella? 
sp...
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PCAT Pearson Biology Section Exam 2023
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Cell Theory - ANSWER-Discovered in the 17th century 
1. All living things are composed of cells 
2. The cell is the basic unit of life 
3. The chemical reactions of life take place inside the cell 
4. Cells arise from only preexisting cells 
5. Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell 
 
6 Kingdoms - ANSWER-Bacteria, Archaea, Protista, Fungi, Plantae, and Animalia 
 
Prokaryotic - ANSWER-"before nucleus", lacks a memb...
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BIOS 251 Final Exam Latest Update Graded A+
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BIOS 251 Final Exam Latest Update 
 
Graded A+ 
 
Components of the homeostatic control loop receptor, control center, effector 
 
Negative feedback -works to oppose change 
-brings condition back to a set point 
Positive feedback -works to enhance change 
-brings condition further away from a set point 
Tonicity relates to how the solution influences the shape of body cells 
 
Hypotonic solution RBC undergoes hemolysis (swelling) 
 
Hypertonic solution RBC undergoes crenation (shrinki...
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GMS-6440 Medical Physiology Exam 1 Questions With 100% Correct Answers 2024
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GMS-6440 Medical Physiology Exam 1 
Questions With 100% Correct Answers 2024 
What chemical component of the plasma membrane prevents ions from readily and freely 
moving across the membrane? - answerLipids (phospholipids) 
Where is the concentration of [K+] greater? - answerIn the cytoplasm 
Across a cell's plasma membrane, movemen of water is a ___________ event. - 
answerPassive through a channel. 
Where is the concentration of [Na+] greater? - answerIn the extracellular fluid. 
For a neutra...
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Fortis College-SLC General Biology Exam 2 All Possible Questions and Answers with complete solution
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ATP - (adenosine triphosphate) main energy source that cells use for most of their work. 1 
nucleotide + 3 phosphate group makes it unstable. If loses phosphate group becomes ADP 
ATP is composed of - ribose (a sugar), adenine (a nitrogenous base), and three phosphate groups 
Coupled reactions - Energy releasing action usually in the form of ATP breakdown 
Release of ATP+P causes myosin to change shape and cause muscle movement 
What do plants and other living organisms need for food - Photosynt...
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QBM Final Exam Questions And Answers With Complete Solutions
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QBM Final Exam Questions And Answers 
With Complete Solutions 
What is the best representation of DNA/protein if you could see it? - answerMolecular 
surface model 
OSHA - answerOccupational Safety and Health Association 
- Must inform employees of potential hazards 
MSDS - answerMaterial Safety Data Sheet 
- Lists chemical's physical and chemical properties, toxic, carcinogenic 
- Describes proper handling 
Biosafety levels - answerBSL-1 = minimal hazards 
BSL-2 =potential hazardous organisms,...
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PSIO 303 EXAM 1 QUESTIONS WITH 100% SOLVED SOLUTIONS
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What are sphingomyelins? - Sphingolipids where the head group is phosphocholine or 
phosphoethanolamine. 
What prevents cells from actually swelling? - It is effectively impossible for sodium to enter the 
cell (due to pump and lack of sodium channels). There is a high sodium ion concentration outside the cell 
which prevents water from entering in the cell 
Why would cells have a tendency to swell? - Because cytoplasm contains negatively charged 
proteins that cannot exit, so cells naturally ga...
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QBM Final Exam Questions And Answers With Complete Solutions
- Exam (elaborations) • 32 pages • 2024
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QBM Final Exam Questions And Answers 
With Complete Solutions 
What is the best representation of DNA/protein if you could see it? - answerMolecular 
surface model 
OSHA - answerOccupational Safety and Health Association 
- Must inform employees of potential hazards 
MSDS - answerMaterial Safety Data Sheet 
- Lists chemical's physical and chemical properties, toxic, carcinogenic 
- Describes proper handling 
Biosafety levels - answerBSL-1 = minimal hazards 
BSL-2 =potential hazardous organisms,...
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IB Biology 9.2 Latest Update Graded A+
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IB Biology 9.2 Latest Update Graded A+ 
 
Translocation occurs from ___ to ___ Source to sink 
 
Phloem tissue - found in stems, roots and leaves 
 
- Composed of sieve tubes which are composed of specialized sieve tube cells 
 
- Sieve tube cells are separated by sieve plates (perforated walls) 
 
- Sieve tube cells are associated with companion cells 
 
Translocation Transport of organic solutes in a plant 
 
Sources areas of plant where sugars and amino acids are in surplus and are loaded int...
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Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora | Complete Guide A+
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Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora Testbank Chapter 1. An Introduction to the Human Body Multiple Choice 1. This is the study of the functions of body structures. a. Anatomy b. Physiology c. Dissection d. Histology e. Immunology Ans: B Difficulty: easy Feedback: 1.1 2. This is defined as a group of cells with similar structure and function. a. Tissue b. Organ c. Molecules d. Compounds e. Organism Ans: A Difficulty: easy Feedback: 1.2...
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