LPN Entrance Exam Science Section with All Questions and 100% Correct Answer New Latest Version<\/p>\n\n\n\n
LPN Entrance Exam Science Section with All
Questions and 100% Correct Answer New
Latest Version
how does water affect the temperature of a living thing ——— Correct Answer ———-
water keeps temperature stable
what is another name for aqueous HI ——— Correct Answer ———- hydriodic acid
which of the heart chambers is the most muscular ——— Correct Answer ———- left
ventricle
which of the following is not a product of the Krebs cycle ——— Correct Answer ———-
oxygen
what is the name for the reaction that is entirely consumed by the reaction ———
Correct Answer ———- limiting reactant
which part of the brain interprets sensory information ——— Correct Answer ———-
the cerebrum
what kind of bond connects sugar and phosphate in DNA ——— Correct Answer ———<\/p>\n\n\n\n
in which of the following muscle types are the filaments ranged in a disorderly manner —
——- Correct Answer ———- smooth
which hormone is produced by the pineal gland ——— Correct Answer ———-
melatonin
make the following metric conversion: 5 decimeters= ——— Correct Answer ———-
0.05 decameters
which of the data sets could be plotted on a pie chart ——— Correct Answer ———-
the distribution of weight among players of a football team
which of the following processes electrical chargers to separate substances ———
Correct Answer ———- electrophoresis
When using a light microscope, how is the total magnification determined? ———
Correct Answer ———- By multiplying the ocular lens power times the objective being
used
when undergoing a dissection in class, which of the following procedures is incorrect —-
—– Correct Answer ———- decaying specimens are never permitted but union
specimens are sometimes permitted
After a science laboratory exercise, some solutions remain unused and are left over.
What should be done with these solutions? ——— Correct Answer ———- dispose of
the solutions according to local disposal procedures
the volume of water in a bucket is 2.5 liters. when an object with an irregular shape and.
a mass of 40 grams is submerged in the water, the volume of the water is 4.5 liters.
what is the density of the object ——— Correct Answer ———- 20 g\/L
which of the following represents a chemical change ——— Correct Answer ———- a
spoiling apple
the amount of potential energy an object has depends on all of the following except its: –
——– Correct Answer ———- temperature
elements on the periodic table are arranged into groups and periods and ordered
according to ——— Correct Answer ———- atomic number, number or protons, and
reactivity
the specific heat capacity of ice is half as much as that of liquid water. what Is the result
of this? ——— Correct Answer ———- it takes half the amount of energy to increase
the temperature of a 1 kg sample of ice by 1c than a 1 kg sample of water<\/p>\n\n\n\n
what happens to the temperature of a substance as it is changing phase form a liquid to Proteins Cytosol cells Irreversible reaction Oxidative Phosphorylation Microcirculation aa 2 diploid cells Water keeps temperature stable Oxygen Covalent Species They are not water soluble Hemoglobin Cohesion Melatonin Ribosome Meiosis I Prokaryote Phenotype Steam (1) Interphase (1) Mitochondria (1) Hemoglobin (1) DNA (1) Water 4 Red blood cell Electron transport system Kingdom Fission Telophase II Anaphase I Telophase I Nucleotides Cytosine and thymine Adenine and guanine Antiparallel Meiosis creates cells with half the chromosomes of the parent cell It conducts food throughout the plant Shape Parasitism Salmonella Precise It fails to absorb green light Chemiosmosis Entropy Endocytosis A tulip Spread of cancer cells to sites beyond their origin Kingdom, Phylum, Class, Order, Family, Genus, Species Hypothesis, Experiment, Conclusion Water The polarity of it’s bonds Hydrogen bonding Temperature Stay bonded or attracted to another molecule of the same substance Water to bond or attract other molecules or substances The molecules form a lattice, which causes the molecules to spread apart, resulting in floating Versatile solvent Storage, structure and energy Long chains, or polymers, of sugar Lipids No double bond in thier hydrocarbon tail One or more double bonds Saturated fats Unsaturated fats (1) Saturated fats Phosphate group Steroids (2) Proteins (1) Proteins To catalyze different reactions or processes DNA & RNA DNA RNA Metabolism Metabolic pathways (progressing from a standpoint of high energy to low energy) Organelles Procaryotic cells Eukaryotic cells Nucleus Chromosomes To read the RNA produced in the nucleus and translate the genetic instructions to produce proteins Attached to the endoplasmic reticulum and in the cytoplasm Nuclear membrane Protien synthesis and membrane production Detoxification and metabolism of multiple molecules Lysosome Mitochondria Chloroplasts Protection, communication, and the passage of substances in and out of the cell Bilayer of phospholipids with proteins, cholesterol, and glycoproteins Selectively permeable In the cytosol of the cell 2 molecules of ATP, 2 molecules of pyruvate, and 2 molecules of NADH Mitochondrion Step 2 Matrix of the mitochondria 2 ATP, 6 CO2, 6 NADH NADH Electron transport chain Photosythesis Convert solar energy to chemical energy Binary fission Mitosis Meiosis Interphase Alleles Punnett square LPN Entrance Exam Science Section with All Questions and 100% Correct Answer New Latest Version LPN Entrance Exam Science Section with AllQuestions and 100% Correct Answer NewLatest Versionhow does water affect the temperature of a living thing ——— Correct Answer ———-water keeps temperature stablewhat is another name for aqueous HI ——— Correct Answer ———- hydriodic […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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a solid ——— Correct Answer ———- its temperature remains the same due to the
latent heat of fusion
a long nail is heated at one end. after a dew seconds, the other end of the nails
becomes equally hot. what type of heat transfer does this represent? ——— Correct
Answer ———- conduction
which of the following statements about heat transfer is not true ——— Correct Answer
———- heat transfer can never occur from a cooler object to a warmer object.
what is the name for any substance that stimulates the production of antibodies ———
Correct Answer ———- Antigen
List the cellular hierarchy from simplest to most complex structure ——— Correct
Answer ———- cell, tissue, organ, organ system, organism
if a cell is placed in a hypertonic solution, what will happen to the cell ——— Correct
Answer ———- it will shrink
Which group of major parts and organs make up the immune system? ——— Correct
Answer ———- lymphatic system, spleen, tonsils, thymus, and bone marrow
the rate of a chemical reaction depends on all of the following except ——— Correct
Answer ———- amount of mass lost
which best defines.”for a given mass and constant temperature, an inverse relationship
exists between the volume and pressure of a gas” ——— Correct Answer ———-
Boyle’s law
what statement correctly compares prokaryotic and eukaryotic cells ——— Correct
Answer ———- prokaryotic cells do not contain membrane-bound organelle, eukaryotic
cells do.
what is the role of ribosomes ——— Correct Answer ———- make proteins
if an organism is AaBb, which of the following combinations in the gametes is
impossible ——— Correct Answer ———- aa
what is the oxidation number of hydrogen in CaH2 ——— Correct Answer ———- -1
which hormone stimulates milk production in the Breasts during lactation ——— Correct
Answer ———- prolactin
what is the typical result of mitosis in humans ——— Correct Answer ———- two
diploid cells
Powered by https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n
Using percent of body weight calculations, which of the following categories is found in the highest concentration in the body?<\/p>\n\n\n\n
Which of the following is not considered a major class of biological units?<\/p>\n\n\n\n
Which of the following reactions most appropriately matches the following definition: at a state of chemical equilibrium, the product of the reaction has required almost all of the reactants?<\/p>\n\n\n\n
In which of the following stages of glucose breakdown is the most energy produced?<\/p>\n\n\n\n
Arterioles, venules, and capillaries are collectively known as _<\/strong>.<\/p>\n\n\n\n
If an organism is AaBb, which of the following combinations in the gametes is impossible?<\/p>\n\n\n\n
What is the typical result of mitosis in humans?<\/p>\n\n\n\n
How does water affect the temperature of a living thing?<\/p>\n\n\n\n
Which of the following is not a product of the Krebs cycle?<\/p>\n\n\n\n
What kind of bond connects sugar and phosphate in DNA?<\/p>\n\n\n\n
What is the second part of an organism’s scientific name?<\/p>\n\n\n\n
How are lipids different than other organic molecules?<\/p>\n\n\n\n
Which of the following is not a steroid?<\/p>\n\n\n\n
Which of the following properties is responsible for the passage of water through a plant?<\/p>\n\n\n\n
Which hormone is produced by the pineal gland?<\/p>\n\n\n\n
What is the name of the organelle that organizes protein synthesis?<\/p>\n\n\n\n
During which phase is the chromosome number reduced from diploid to haploid?<\/p>\n\n\n\n
What is the name of a cell that does not contain a nucleus?<\/p>\n\n\n\n
What is the name for the physical presentation of an organism’s genes?<\/p>\n\n\n\n
Which of the following forms of water is the densest?<\/p>\n\n\n\n
(1) What is the longest phase in the life of a cell?<\/p>\n\n\n\n
(1) Which of the following is not found within a bacterial cell?<\/p>\n\n\n\n
(1) Which of the following is a protein?<\/p>\n\n\n\n
(1) Which of the following structures is not involved in translation?<\/p>\n\n\n\n
(1) Which of the following is necessary for cell diffusion?<\/p>\n\n\n\n
How many different types of nucleotides are there in DNA?<\/p>\n\n\n\n
Which of the following cell types has no nucleus?<\/p>\n\n\n\n
Which part of aerobic respiration uses oxygen?<\/p>\n\n\n\n
Which of the following is the largest most general taxonomic category?<\/p>\n\n\n\n
What is the name of the process by which a bacterial cell splits into 2 new cells?<\/p>\n\n\n\n
A nuclear envelope forms around each set of chromosomes and cytokinesis occurs, producing four daughter cells, each with a haploid set of chromosomes.<\/p>\n\n\n\n
The two chromosomes in each bivalent separate and migrate toward opposite poles.<\/p>\n\n\n\n
The maternal and paternal chromosomes of each homologous pair separate and reach the poles of the cell, nuclear envelopes form around them, and cytokinesis follows to produce two cells.<\/p>\n\n\n\n
DNA is a polymer of:<\/p>\n\n\n\n
Which of the following are pyrimidines?<\/p>\n\n\n\n
Which of the following are purines?<\/p>\n\n\n\n
The two polynucleotide chains in DNA are:<\/p>\n\n\n\n
How is mitosis different from meiosis?<\/p>\n\n\n\n
What is the purpose of phloem tissue in plant stems?<\/p>\n\n\n\n
Physical factors such as temperature and pH can alter enzyme activity because they have an effect on the enzyme’s _<\/strong><\/p>\n\n\n\n
What kind of symbiosis exists between a pneumonia bacterium and a human?<\/p>\n\n\n\n
What organism reproduces via binary fission?<\/p>\n\n\n\n
3 students measured the mass of a product of combustion. They recorded the measurements of 5.14g , 5.16 g, and 5.17 g. If the known mass of the product is 5.30 g, how would you describe the students’ measurements?<\/p>\n\n\n\n
Why do we perceive chlorophyll as green?<\/p>\n\n\n\n
The basic method by which chloroplasts and mitochondria generate ATP is<\/p>\n\n\n\n
The decay of lead after it falls from a tree indicated an increase in its<\/p>\n\n\n\n
Phagocytosis is a form of<\/p>\n\n\n\n
In the structure of cells, in which of the following organisms would one find a cell wall?<\/p>\n\n\n\n
Metastasis refers to the<\/p>\n\n\n\n
Hierarchic system of organization<\/p>\n\n\n\n
Process of science<\/p>\n\n\n\n
What is the substance that makes life possible?<\/p>\n\n\n\n
What is the most significant aspect of water?<\/p>\n\n\n\n
It is the polar nature of water that allows what to happen between molecules?<\/p>\n\n\n\n
Due to water’s high specific heat value, it resists shifts in<\/p>\n\n\n\n
cohesion is the ability of a molecule to<\/p>\n\n\n\n
Adhesion is the ability of<\/p>\n\n\n\n
Why does water float when in solid form?<\/p>\n\n\n\n
what is it called when water is said to be used to dissolve a number of different substances?<\/p>\n\n\n\n
What are the most important functions of carbohydrates?<\/p>\n\n\n\n
Carbohydrates are made of<\/p>\n\n\n\n
Fatty acids, phospholipids, and steroids are also known as<\/p>\n\n\n\n
Saturated fats contain<\/p>\n\n\n\n
Unsaturated fats contain<\/p>\n\n\n\n
__<\/em><\/strong> are solid at room temperature<\/p>\n\n\n\n
__<\/em><\/strong> are liquid at room temperature<\/p>\n\n\n\n
(1) What type fat contributes to cardiovascular problems?<\/p>\n\n\n\n
Phospholipids consist of 2 fatty acids of varying length bondes to a<\/p>\n\n\n\n
Which type of lipid is a precursor to significant hormones?<\/p>\n\n\n\n
(2) What biological molecule is the most significant contributor to cellular function?<\/p>\n\n\n\n
(1) What is the largest of biological molecules; made up of polymers of 20 molecules called amino acids?<\/p>\n\n\n\n
What is the function of an enzyme?<\/p>\n\n\n\n
Two nucleic acids<\/p>\n\n\n\n
A self-replicating material present in nearly all living organisms as the main element of chromosomes. It is the carrier of genetic information<\/p>\n\n\n\n
A nucleic acid is present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins<\/p>\n\n\n\n
What is the sum of all chemical reactions that occur in an organism?<\/p>\n\n\n\n
In a cell, reactions take place in a series of steps called<\/p>\n\n\n\n
What are tiny structures that carry out functions necessary for the cell to stay alive<\/p>\n\n\n\n
Organisms that lack a defined nucleus and membrane-bound organelles<\/p>\n\n\n\n
Cells that have a nucleus and other membrane-bound organelles- more complex<\/p>\n\n\n\n
Organelle that contains the DNA of the cell in organized masses called chromosomes<\/p>\n\n\n\n
What contains all of the material for the regeneration of the cell, as well as all of the instructions for the function of the cell?<\/p>\n\n\n\n
What is the purpose for ribosomes?<\/p>\n\n\n\n
Where are ribosomes located?<\/p>\n\n\n\n
What is the endoplasmic reticulum (ER) attached to?<\/p>\n\n\n\n
What is the rough ER responsible for?<\/p>\n\n\n\n
What is the smooth ER responsible for?<\/p>\n\n\n\n
What organelle is responsible for intracellular digestion?<\/p>\n\n\n\n
What is the organelle that produces cell energy; the site of cellular respiration<\/p>\n\n\n\n
Produces cell energy; found in plants and is the site of photosynthesis<\/p>\n\n\n\n
What is the function of the cellular membrane?<\/p>\n\n\n\n
What is a cell membrane made of?<\/p>\n\n\n\n
The hydrophobic region between the two layers of lipids, make the cell membrane\u2026<\/p>\n\n\n\n
Where does glycolysis take place?<\/p>\n\n\n\n
What does the first step of glycolysis produce?<\/p>\n\n\n\n
In step 2 of cellular respiration, pyruvate is transported into a(n)<\/p>\n\n\n\n
In what step of cellular respiration does the Kreb’s cycle take place?<\/p>\n\n\n\n
The Kreb’s cycle takes place in the<\/p>\n\n\n\n
During the Kreb’s cycle, for a single consumed glucose molecule, what is produced?<\/p>\n\n\n\n
The third step of cellular respiration begins with the oxidation of the _<\/em><\/strong> to produce oxygen and finally to produce water<\/p>\n\n\n\n
The third and final stage of glucose oxidation. A series of metabolic reactions that transport electrons from NADH or FADH2 through a series of carriers resulting in ATP production; for every glucose molecule, 28-32 ATP molecules can be produced<\/p>\n\n\n\n
A precursor to the glucose molecule is produced in a process called<\/p>\n\n\n\n
Regarding photosynthesis, light reactions are those that<\/p>\n\n\n\n
A method of asexual reproduction that involves the splitting of a parent cell into two approximately equal parts<\/p>\n\n\n\n
a method of cell division (asexual), in which the nucleus divides into daughter nuclei, each containing the same number of chromosomes as the parent nucleus<\/p>\n\n\n\n
A type of cell division that results in two daughter cells each with half the chromosome number of the parent cell.<\/p>\n\n\n\n
The resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.<\/p>\n\n\n\n
Alternate forms of a gene<\/p>\n\n\n\n
in genetics, a type of grid used to show the gametes of each parent and their possible offspring; a type of grid that can indicate all the possible outcomes of a genetic cross<\/p>\n","protected":false},"excerpt":{"rendered":"