8- Which of the following is a true statement- A- Myelin and acetyleho.pdf
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8. Which of the following is a true statement? A. Myelin and acetyleholine are detergents that solabilized membrane proteins out of the membrane: B. Phosphatidyleholine is the major steroid component in the lipid bilayer of animal membeanes, C. The most common form in which a polypeptide chain erosses the lipid bilayer is gamma-sheets. D. The length of the hydrocarbon tail and the number of actin filuments are two properties that affect packing in the lipid bilayer. E. Tight junctions restricts movement of the membrane proteins and seals off compartments. 9. Which of the following is not a characteristic of porins? A. are transmembrane proteins. B. have transmembrane segments that are more bydrophilic than the membrane-spanning segments of "typieate transusembrane proteins. C. contain a-helical membrane -spanning segnents. E. form channels that allow passage of small, hydrophilic molecules. 10. Which of the following is not a finction of the elgesealy A. involved in oell ing is not a finction of the elycocalyx? B. serves as in cell-eell resognition. D. protect the cell surfice from mochanical damage. C. belp orientate the matinctive clothing. E. protect and labricate the cell. 11. Which of the following is not a fointeins as the proteins bud frum the anembrane vesicles. A. transport moleculer and ions B. enzymatic (catalyze reactions) D. anchor the membrane to macrumolecules on cither alde 12. Which component in the figure of the cell mene cergy, carbon and nis cell? 13. Which of the following is false statement regarding the eell cortox and the vell mumbrane? A. Cellw wse the ir cortex to restrain the diffusion of proteins within the planama mewbencte. B. The cell cortex is attached to the underside of the membrane D. Spectrin is the cell and increases fluidity of the deternents E. The cell mem major component of the cell cortex of red blood cells. Which transmembrane protoin is represented in the diayram?.
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This document contains sample questions from chapters in Ganong's Review of Medical Physiology, 25th Edition. The questions cover topics like membrane potentials, transcription, protein structure, metabolism, lipoproteins, immune function, nerve cells, muscle tissue, synaptic transmission, and more. The questions are multiple choice format with one or more correct answers listed as options for each question.
Simple squamous epithelium is structured to best provideA. Diffus.pdf
Simple squamous epithelium is structured to best provide:
A. Diffusion of substances across the membrane
B. Protection/withstanding wear and tear
C. Secretion and absorption
D. Receptor Mediated Endocytosis
E. Ability to stretch without tearing
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Which of the following is NOT true of the Na+/K+ pump?
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1. A. Diffusion of substances across the membrane.
simple squamous epithelium is a single layer of flat cells in contact with the basal lamina (one of
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permeable and occurs where small molecules pass quickly through membranes via filtration or
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thin, and forms a delicate lining.
2. A.Oligodendrocytes .
These cells occur in nervous tissue.
3. B. It pumps Na+ out of the cell and K+ in to the cell at a rate of 2 Na+ for every 3 K+.
Na-K pump pumps 3 Na+ out in exchange of 2 K+ ions.
4. A. This tissue is highly mitotic.
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Solution
#include
using namespace std;
//Class for standard deviation
class stdDev
{
private:
int max;
double value[100];
double mean;
public:
double CalMean()
{
double sum = 0;
for(int i = 0; i < max; i++)
sum += value[i];
return (sum / max);
}
double CalVariane()
{
mean = CalMean();
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ;
}
return temp / max;
}
double CalSampleVar()
{
mean = CalMean(); //get mean
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ; //apply formula
}
return temp / (max - 1); //returns sample variance
}
int SetValues(double *p, int count)
{
if(count > 100)
return -1;
max = count;
for(int i = 0; i < count; i++)
value[i] = p[i];
return 0;
}
double CalStdDev()//returns Standard deviation
{
return sqrt(CalVariane());
}
double SampleStdDev()//returns sample deviation
{
return sqrt(CalSampleVar());
}
};
class Calculate
{
private:
double XTerms[100];
double YTerms[100];
int max;
stdDev x; // Standard deviation for x
stdDev y;// Standard deviation for y
public:
//set x and y series values to class members
void SetValues(double *xval, double *yval, int count)
{
for(int i = 0; i < count; i++)
{
XTerms[i] = xval[i];
YTerms[i] = yval[i];
}
x.SetValues(xval, count);
y.SetValues(yval, count);
max = count;
}
double Calculate_Covariance()
{
double xmean = x.CalMean();//Get X meam
double ymean = y.CalMean();//get y mean
double total = 0;
for(int i = 0; i < max; i++)
{
total += (XTerms[i] - xmean) * (YTerms[i] - ymean);
}
return total / max;//return Covariance
}
double Calculate_Correlation()//Find correlation
{
double cov = Calculate_Covariance();
double correlation = cov / (x.CalStdDev() * y.CalStdDev());
return correlation;
}
};
int main()
{
Calculate calc; //create object of class
double xarr[] = { 0, 2, 4, 6, 8 }; // x series
double yarr[] = { 6, 13, 15, 16, 20 };// y series
calc.SetValues(xarr,yarr,sizeof(xarr) / sizeof(xarr[0]));//set series values
cout<<\"X series ={ 0, 2, 4, 6, 8 }\ Y series={ 6, 13, 15, 16, 20 }\ \";
cout<<\"Correlation \"<< calc.Calculate_Correlation();
}
=====================================================================
========
Output:
akshay@akshay-Inspiron-3537:~/Chegg$ g++ coeffici.cpp
akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
X series ={ 0, 2, 4, 6, 8 }
Y series={ 6, 13, 15, 16, 20 }
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appearance. This epithelium is associated with filtration and diffusion.This tissue is extremely
thin, and forms a delicate lining.
2. A.Oligodendrocytes .
These cells occur in nervous tissue.
3. B. It pumps Na+ out of the cell and K+ in to the cell at a rate of 2 Na+ for every 3 K+.
Na-K pump pumps 3 Na+ out in exchange of 2 K+ ions.
4. A. This tissue is highly mitotic.
5. B. right, lungs.
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oxygrnation..
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#include
using namespace std;
//Class for standard deviation
class stdDev
{
private:
int max;
double value[100];
double mean;
public:
double CalMean()
{
double sum = 0;
for(int i = 0; i < max; i++)
sum += value[i];
return (sum / max);
}
double CalVariane()
{
mean = CalMean();
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ;
}
return temp / max;
}
double CalSampleVar()
{
mean = CalMean(); //get mean
double temp = 0;
for(int i = 0; i < max; i++)
{
temp += (value[i] - mean) * (value[i] - mean) ; //apply formula
}
return temp / (max - 1); //returns sample variance
}
int SetValues(double *p, int count)
{
if(count > 100)
return -1;
max = count;
for(int i = 0; i < count; i++)
value[i] = p[i];
return 0;
}
double CalStdDev()//returns Standard deviation
{
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}
double SampleStdDev()//returns sample deviation
{
return sqrt(CalSampleVar());
}
};
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{
private:
double XTerms[100];
double YTerms[100];
int max;
stdDev x; // Standard deviation for x
stdDev y;// Standard deviation for y
public:
//set x and y series values to class members
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{
for(int i = 0; i < count; i++)
{
XTerms[i] = xval[i];
YTerms[i] = yval[i];
}
x.SetValues(xval, count);
y.SetValues(yval, count);
max = count;
}
double Calculate_Covariance()
{
double xmean = x.CalMean();//Get X meam
double ymean = y.CalMean();//get y mean
double total = 0;
for(int i = 0; i < max; i++)
{
total += (XTerms[i] - xmean) * (YTerms[i] - ymean);
}
return total / max;//return Covariance
}
double Calculate_Correlation()//Find correlation
{
double cov = Calculate_Covariance();
double correlation = cov / (x.CalStdDev() * y.CalStdDev());
return correlation;
}
};
int main()
{
Calculate calc; //create object of class
double xarr[] = { 0, 2, 4, 6, 8 }; // x series
double yarr[] = { 6, 13, 15, 16, 20 };// y series
calc.SetValues(xarr,yarr,sizeof(xarr) / sizeof(xarr[0]));//set series values
cout<<\"X series ={ 0, 2, 4, 6, 8 }\ Y series={ 6, 13, 15, 16, 20 }\ \";
cout<<\"Correlation \"<< calc.Calculate_Correlation();
}
=====================================================================
========
Output:
akshay@akshay-Inspiron-3537:~/Chegg$ g++ coeffici.cpp
akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
X series ={ 0, 2, 4, 6, 8 }
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Schleiden & Schwann were responsible for the second postulate of the Cell Theory that all living things are made of cells. Anton van Leeuwenhoek was integral to the development of the Cell Theory because he was the first to observe living cells using microscopes he had constructed. Some statements that are considered true include that some living things can exist without cells and that the ability to reproduce does not immediately mean something is a living thing. Viruses are generally considered non-living things.
Quiz maker - plant and animal cell
This document contains a 20 question quiz about plant and animal cell structures and functions. It tests knowledge about the cell wall, cell membrane, ribosomes, nucleus, chloroplasts, vacuoles, nuclear membrane, and roles of the endoplasmic reticulum and stages of mitosis like metaphase, anaphase and telophase. The quiz distinguishes between structures found in plant, animal and bacteria cells.
Lecture 6 Biological Membranes.pptx
This document summarizes key functions and structures of cell membranes. It discusses how membranes define cell and organelle boundaries, act as selective permeability barriers, and compartmentalize functions. Membranes are also sites for specific biochemical processes like electron transport and serve to regulate transport. Additionally, the plasma membrane contains receptors for external signals and provides mechanisms for cell-cell contact, adhesion and communication. Specific junctions like gap junctions, tight junctions and desmosomes are discussed in relation to their roles in cellular connectivity.
Plant and Animal Cells
About the different parts/organelles of plants and animal cells and its functions, difference between plant and animal cells.
LECTURE 1. PLASMA MEMBRANE.pptxhhjjjghfh
The plasma membrane is approximately 7.5 nm thick and consists of a lipid bilayer containing proteins. The lipid bilayer forms two leaflets and houses integral and peripheral membrane proteins. It maintains cell structure, acts as a semipermeable barrier, and participates in signal transduction. The membrane regulates interactions between the cell and its environment through transporters and channels that facilitate the passage of molecules into and out of the cell.
Anatomy and physiology reviewer
- Epithelial tissue is characterized by tightly packed cells with little extracellular matrix between them and a basement membrane. Epithelial tissue that can stretch or is subjected to stress would have many desmosomes.
- Cartilage tissues are slow to heal after injury because the cartilage cells are surrounded by fluid and lack a direct blood supply, making regeneration difficult.
- About 90% of cancers originate from epithelial tissue, as epithelial cells are continually replacing themselves and are susceptible to mutations. Inflammatory reactions typically occur in connective tissue.
chapter-2-cells_0.ppt
The document discusses cell structure and function. It begins by stating that the human body contains 75 trillion cells that vary in shape and size but share common characteristics. It then describes the main parts of a cell: the nucleus, cytoplasm, and cell membrane. The cell membrane regulates what passes in and out of the cell and contains proteins that perform various functions like acting as receptors or aiding molecule passage. The document also discusses different mechanisms of movement across the cell membrane, including passive diffusion and active transport powered by ATP.
Structure and function of plasma membrane 2
The presentation consists of 72 slides,describes following heads
DEFINITION : STRUCTURE OF PLASMA MEMBRANE
COMPONENTS OF PLASMA MEMBRANE ( (BIOCHEMICAL PROPERTIES)
LIPID BILAYER
PROTEINS
CARBOHYDRATES
CHOLESTEROL
MODELS EXPLAINING STRUCTURE OF BIO MEMBRANE
FLUID MOSAIC MODEL
MOBILITY OF MEMBRANE
GLYCOCALYX : GLYCOPROTEINS AND GLYCOLIPIDS
TRANSPORT OF IONS AND MOLECULES ACROSS PLASMA MEMBRANE
FUNCTIONS OF PLASMA MEMBRANE
DIVERSITY OF CELL MEMBRANES
SITE OF ATPASE ION CARRIER CHANNELS AND PUMPS-RECEPTORS
Biological membrane
The document discusses biological membranes. It describes how membranes form closed compartments that separate cells and organelles. Membranes are composed of lipids and proteins. They are selectively permeable and allow for material exchange through transporters, channels, and endocytosis/exocytosis. Membranes also localize enzymes and are involved in cellular signaling and energy transduction.
plantanimalcells-160729085355.pptx
- The document discusses plant and animal cells, comparing their parts and functions. It identifies the cell membrane, cytoplasm, nucleus, mitochondria, endoplasmic reticulum, ribosomes, Golgi apparatus, and vacuole as common parts of both cell types.
- Plant cells also contain a cell wall, chloroplasts, and plastids. Animal cells contain lysosomes. The functions of these parts are explained.
- Key differences between plant and animal cells include plant cells having cell walls, chloroplasts, and the ability to perform photosynthesis, while animal cells can move and obtain food externally.
Plant Anatomy and Microtechniques
The document discusses the structure and types of plant cell walls and tissues. It begins by describing the four layers of the plant cell wall: middle lamella, primary wall, secondary wall, and tertiary wall. It then discusses the ultrastructure of cell walls under electron microscopes. The document also covers the structure and functions of the plasma membrane, pits, plasmodesmata, and the four main types of plant tissues: meristematic tissues, parenchyma tissues, collenchyma tissues, and sclerenchyma tissues. It provides detailed information on each tissue type.
The Membrane Of A Eukaryotic Cell
The cell membrane surrounds the cytoplasm of the cell and separates its contents from the external environment. It is a semi-permeable bilayer that regulates what enters and exits the cell through membrane proteins. The nucleus contains the cell's DNA and controls its metabolism and reproduction. Mitochondria have a double membrane and produce energy for the cell in the form of ATP through aerobic respiration. Ribosomes are sites of protein synthesis and consist of large and small subunits that can float freely in the cell or attach to the endoplasmic reticulum.
1.3 Membrane Structure
The document discusses membrane structure. It describes how phospholipids form bilayers in water due to their amphipathic properties. The hydrophilic head of phospholipids is attracted to water, while the hydrophobic tail is repelled by water. This allows phospholipids to orient themselves with heads facing the water and tails facing each other, forming bilayers or micelles. Cholesterol is also discussed, and how it reduces membrane fluidity. Membrane proteins, glycoproteins, and their various functions are briefly covered. Early models of membrane structure are mentioned, such as the Davson-Danielli model which was later replaced by the fluid mosaic model.
Bio Ch 7 Pwpt
The document summarizes key concepts about membrane structure and function from a biology textbook chapter. It discusses how the plasma membrane is a fluid mosaic of lipids and proteins that forms a selectively permeable barrier. Membrane proteins and transport proteins allow certain substances to pass through the membrane via passive transport processes like diffusion and osmosis, maintaining water balance in cells.
BI 101 Homework 3
This document contains a 22 question quiz on cellular biology concepts. The questions cover topics like cellular transport mechanisms, cellular structures like organelles and membranes, the differences between prokaryotic and eukaryotic cells, and the distinguishing features of bacteria, plant, and animal cells.
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