1.
Two types of body fluids.
Explanation
The two types of body fluids are intracellular fluids and extracellular fluids. Intracellular fluids refer to the fluid found within the cells of the body, while extracellular fluids refer to the fluid found outside the cells, in spaces such as the blood plasma and interstitial fluid. These two types of fluids play different roles in the body. Intracellular fluids help maintain cell structure and function, while extracellular fluids are involved in transporting nutrients, oxygen, and waste products throughout the body.
2.
Also referred to as the cellular fluid. Is found within the cells of the body.
Explanation
The correct answer is "Intracellular fluid." This term refers to the fluid that is found within the cells of the body. It is also known as cellular fluid.
3.
Body fluid found outside the cells.
Explanation
Extracellular fluid refers to the body fluid that is found outside the cells. It includes the fluid in the blood vessels (plasma) and the fluid that surrounds the cells (interstitial fluid). This fluid is essential for maintaining the balance of electrolytes, nutrients, and waste products in the body. It also helps in the transportation of oxygen and nutrients to the cells and removal of waste products from the cells.
4.
Three compartments of ECF are:
5.
Cite an example of intravascular fluid.
Explanation
Plasma is an example of intravascular fluid. It is the liquid component of blood that makes up about 55% of the total blood volume. It is a yellowish fluid that carries various substances such as nutrients, hormones, waste products, and antibodies throughout the body. Plasma also plays a vital role in maintaining blood pressure and regulating body temperature.
6.
Cite an example of interstitial fluid.
Explanation
Lymph is an example of interstitial fluid. Interstitial fluid is the fluid that surrounds and fills the spaces between cells in tissues. It is derived from the blood plasma and contains nutrients, oxygen, hormones, and waste products. Lymph is a clear, colorless fluid that is collected from the interstitial spaces by lymphatic vessels. It plays a crucial role in the immune system by transporting immune cells and filtering out foreign substances.
7.
Examples of transcellular fluids are:
8.
It is the type of body fluid that acts as the transport system that carries nutrients to and waste products from the cells.
Explanation
Extracellular fluid is the correct answer because it is the type of body fluid that acts as the transport system, carrying nutrients to and waste products from the cells. This fluid surrounds the cells and provides them with the necessary substances for their proper functioning, while also removing waste materials. It plays a crucial role in maintaining homeostasis and ensuring the proper functioning of the body's cells and tissues.
9.
This is a product of a gland and is considered as extracellular fluid.
Explanation
A secretion is a substance produced and released by a gland. It is considered as extracellular fluid because it is released outside of the cells into the surrounding environment. Secretions can have various functions in the body, such as lubrication, digestion, or hormone regulation.
10.
This is the waste produced by the cells of the body.
Explanation
Excretion refers to the process of eliminating waste products produced by the cells of the body. It is an essential function that helps maintain the balance of chemicals and substances in the body. Through excretion, the body gets rid of metabolic waste such as carbon dioxide, urea, and excess water. This process occurs through various organs and systems, including the kidneys, lungs, skin, and intestines. Excretion plays a vital role in maintaining homeostasis and keeping the body healthy.
11.
How much percentage does fluid constitute in a healthy adult's weight?
Explanation
The correct answer is 47 to 55%. This means that fluid makes up approximately 47 to 55% of a healthy adult's weight. The additional information provided, "about 40 liters," is not necessary to answer the question, as it does not specify the exact amount of fluid in relation to the adult's weight.
12.
What is the percentage of fluid composition in infants?
Explanation
The percentage of fluid composition in infants is 70 to 80%. This means that approximately 70 to 80% of an infant's body weight is made up of fluids. Infants have a higher percentage of fluid composition compared to adults because they have a higher water content in their bodies. This is important for their growth and development, as fluids play a crucial role in various bodily functions such as digestion, circulation, and temperature regulation.
13.
As people grow older, the fluid and fat proportions decrease.
Correct Answer
A. True
Explanation
As people age, their body composition changes. One of these changes is a decrease in fluid and fat proportions. This is due to a decrease in muscle mass and an increase in the loss of water content in the body. As a result, older individuals tend to have a lower percentage of body fat and a higher percentage of lean tissue compared to when they were younger. Therefore, the statement "As people grow older, the fluid and fat proportions decrease" is true.
14.
Body fat is essentially free of fluid.
Correct Answer
A. True
Explanation
Body fat is composed of adipose tissue, which is a type of connective tissue made up of fat cells. Unlike other tissues in the body, body fat does not contain a significant amount of fluid. It is primarily made up of triglycerides, which are stored energy molecules. Therefore, it can be said that body fat is essentially free of fluid, making the answer true.
15.
Women have proportionately more fat than men.
Correct Answer
A. True
Explanation
Women generally have a higher proportion of body fat compared to men. This is due to various factors including hormonal differences, genetic factors, and physiological variations. Estrogen, the primary female sex hormone, promotes the storage of fat in the body, particularly in the hips, thighs, and breasts. On the other hand, men tend to have a higher proportion of muscle mass, which results in a lower percentage of body fat. However, it is important to note that individual variations exist, and this statement may not hold true for every woman or man.
16.
Women have a smaller percentage of fluid in relation to total body weight than do men.
Correct Answer
A. True
Explanation
Women generally have a smaller percentage of fluid in relation to their total body weight compared to men. This is because women tend to have a higher percentage of body fat, which contains less water compared to lean body mass. Additionally, women generally have a smaller body size and lower muscle mass compared to men, resulting in a smaller overall fluid volume. Therefore, it is true that women have a smaller percentage of fluid in relation to total body weight than men.
17.
When an excessive fluid loss occurs, ECF is the first volume to be depleted.
Correct Answer
A. True
Explanation
When there is excessive fluid loss, the extracellular fluid (ECF) is the first volume to be depleted. This is because the ECF, which includes the fluid in the blood vessels and the interstitial fluid surrounding the cells, is more easily accessible for the body to use and regulate. The body will prioritize maintaining the volume of the ECF before tapping into other fluid compartments such as the intracellular fluid. Therefore, the statement is true.
18.
Charged particles like Na+ are called electrolytes because they are capable of conducting electricity.
Correct Answer
A. True
Explanation
Charged particles like Na+ are called electrolytes because they are capable of conducting electricity. This is because electrolytes are substances that dissociate into ions in a solution and can carry an electric current. Na+ is a positively charged ion, and when it is dissolved in a solution, it can move freely and carry an electric charge. Therefore, Na+ and other charged particles are referred to as electrolytes because they have the ability to conduct electricity.
19.
Ions that carry positive charge are called...
Correct Answer
cations
Explanation
Ions that carry positive charge are called cations. Cations are formed when an atom loses one or more electrons, resulting in a net positive charge. This positive charge is due to the excess of protons in the nucleus compared to the number of electrons. Cations are attracted to negatively charged ions, known as anions, and play a crucial role in chemical reactions and the formation of compounds.
20.
Ions that are negatively charged are called...
Correct Answer
anions
Explanation
Negatively charged ions are called anions. This is because when an atom gains one or more electrons, it becomes negatively charged. These negatively charged ions are attracted to the positive terminal of a battery or an electric field. Anions play a vital role in various chemical reactions and are involved in the formation of compounds. They are also responsible for conducting electricity in solutions and are commonly found in salts and acids.
21.
Cite 4 examples of cations.
22.
Cite 4 examples of anions.
23.
What are the two principal ions of extracellular fluid?
24.
What are the two principal ions of intracellular fluid?
25.
The ion composition of both intravascular and interstitial space is similar.
Correct Answer
A. True
Explanation
The ion composition of both intravascular and interstitial space is similar because ions can freely move between these spaces due to the permeability of capillary walls. This allows for the exchange of ions and other molecules between the blood vessels and surrounding tissues, maintaining a similar ion composition in both spaces.
26.
The intravascular fluid has a greater quantity of protein than interstitial fluid does.
Correct Answer
A. True
Explanation
Intravascular fluid refers to the fluid found within blood vessels, while interstitial fluid refers to the fluid that surrounds and bathes the cells in the body. The statement is true because the intravascular fluid, which is primarily composed of plasma, contains a higher concentration of proteins compared to the interstitial fluid. Proteins play important roles in maintaining osmotic balance, regulating fluid distribution, and transporting molecules in the blood. Therefore, the intravascular fluid having a greater quantity of protein than interstitial fluid is a correct statement.
27.
Body secretions and excretions also contain electrolytes.
Correct Answer
A. True
Explanation
Body secretions and excretions, such as sweat, urine, and saliva, contain electrolytes. Electrolytes are ions that carry an electric charge and are essential for various bodily functions, including maintaining fluid balance, transmitting nerve signals, and contracting muscles. Therefore, it is true that body secretions and excretions contain electrolytes.
28.
Methods where body fluids and electrolytes move. Cite all 4.
29.
Is the continual intermingling of molecules in liquids, gases or solids brought about by the random movement of the molecules.
Correct Answer
Diffusion
Explanation
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration, resulting in the continual intermingling of molecules in liquids, gases, or solids. This movement is driven by the random motion of the molecules, causing them to spread out and distribute evenly throughout the available space. Therefore, the correct answer for this question is diffusion.
30.
Rate of diffusion varies according to these three factors.
31.
Diffusion is the movement of molecules from higher concentration to a lower concentration.
Correct Answer
A. True
Explanation
Diffusion is a process in which molecules move from an area of higher concentration to an area of lower concentration. This movement occurs due to the random motion of molecules. Therefore, the given statement that diffusion is the movement of molecules from higher concentration to lower concentration is correct.
32.
Increase in temperature increases the rate of diffusion.
Correct Answer
A. True
Explanation
An increase in temperature increases the rate of diffusion because higher temperatures provide more kinetic energy to the particles, causing them to move faster. This increased movement leads to more frequent collisions between particles, allowing them to spread out and diffuse more quickly. Therefore, it can be concluded that the statement is true.
33.
Is the process whereby fluid and solutes move together across a membrane from one compartment to another.
Correct Answer
Filtration
Explanation
Filtration is the process in which fluid and solutes move together across a membrane from one compartment to another. This process occurs due to a pressure gradient, where the pressure on one side of the membrane is higher than the other. As a result, the smaller particles, such as solutes and fluid, are able to pass through the membrane while larger particles are retained. Filtration is an important mechanism in various biological processes, such as kidney function and blood filtration in capillaries.
34.
Filtration is the movement of fluid from a higher pressure to one of lower pressure.
Correct Answer
A. True
Explanation
Filtration is a process where fluid passes through a filter, allowing the movement of particles or substances from an area of higher pressure to an area of lower pressure. This is achieved by applying a pressure difference across the filter, causing the fluid to flow through it. Therefore, the statement that filtration is the movement of fluid from a higher pressure to one of lower pressure is true.