Answer:
The correct answer is option D. The enzyme inhibitor fits into the enzyme's active site, which prevents the enzyme from catalyzing the reaction.
Explanation:
Enzyme inhibitors are the biochemical or chemical substance which hinders the role and function of the enzyme by binding to the active site of an enzyme.
These can be explained into two categories:
Irreversible inhibitors: They bound to the enzyme with the assistance of covalent bonds and alters the affinity of the enzyme towards the substrate by changing the state of the dynamic destinations.
Reversible inhibitors: Theses are the particles that bind to the enzyme's active site with the assistance of non-covalent bonds, for example, hydrogen bonds, hydrophobic bonds, and others.
Thus, the correct answer is : option D.
Answer:
D. The enzyme inhibitor fits into the enzyme's active site, which prevents the enzyme from catalyzing the reaction.
Explanation:
I got it "Correct"
What part of the cell divides first?
Answer:
yes
because cell divides a small in world
How do organisms carry out the chemical reactions needed for life?
Group of answer choices
Evolving
Homeostasis
Responding to stimuli
Metabolism
How is carbon dioxide released into the atmosphere during the carbon cycle
Answer:
Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. The carbon is dissolved into the water.
Explanation:
Identify the statement that correctly describes the change in body size between Homo habilis and Homo erectus.
A(n) __ bond joins these two oxygen atoms.
quadruple covalent
ionic
hydrogen
single covalent
double covalent
i think its ionic bond not sure but ionic means, deffinition: Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. It is one of the main types of bonding along with covalent bonding and metallic bonding. Ions are atoms with an electrostatic charge.
A double covalent bond joins two oxygen atoms. So the correct option is E.
What is a covalent bond?
When two atoms share an electron pair, it forms an interatomic connection known as a covalent bond in chemistry. The electrical attraction of their nuclei for the identical electrons is what causes the binding. When the linked atoms' combined energies are lower than those of widely spaced atoms, a covalent connection is created.
The inorganic elements hydrogen, nitrogen, chlorine, water, and ammonia (H2, N2, Cl2, H2O, NH3) as well as all organic compounds are examples of molecules with covalent connections. Covalent bonds are denoted as solid lines joining atom pairs in structural representations of molecules.
A single line denotes a bond between two atoms (i.e., one electron pair), a double line (=) denotes a double bond between two atoms (i.e., two electron pairs), and a triple line () denotes a triple bond, such as that found, for instance, in carbon monoxide (CO).
Therefore the correct option is E.
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How many openings does a liver fluke has
Answer:
there are 7 fluke in the liver
Answer:
12 I think but i'm really sure about it
abilit of the kidneys to remove molecules from the blood plasma by excreting them in the urine is known as
Answer:
This question lacks options, options are:
A. glomerular filtration.
B. renal clearance.
C. micturition
D. reabsorption
The correct answer is B.
Explanation:
The kidneys remove waste and excess water from the blood (such as urine) and help keep chemicals (such as sodium, potassium, and calcium) in the body balanced. Renal clearance is defined as the volume of blood plasma (ml), which due to the effect of renal function, is free of substance X in the unit of time (in minutes). Substance X becomes part of the urine, that is, renal clearance is the amount of blood that is free of a substance as it passes through the kidney in a unit of time.
Name and describe the levels of organization found in the human body.
use the samples; diamond, dolomite, gneiss, and chalk and provide your analysis of composition and identification based on their identification characteristics.
Answer:
Diamond-
Physical identification characters:
Color- White or Colorless
Lusture - admantine
Streak - Colorkess
Habit - Hour glass structure
Hardness - 10
Cleavage- octaheadral
Composition- pure carbon
Specific gravity-3.5
Dolomite (CaMg(CO3)2
Color - Colorless or white
Hardness is between 3-4
Reacts with any acid
Gneiss
Light and dark strip or banding present alternatively
biotite , pyroxene have Mafic mineral shows dark banding
Quartz, Feldspar have Felsic mineral for light banding
High grade metmorphic rock which is formed due to regional metamorphism of lower grade rock
Chalk(CaCO3)
Color-White
Very fragile
Hardness-1
With acid gives effervescence.
Analysis of composition and identification based on their identification characteristics are:
1. Diamond
Diamond is harder than a streak plate, colourlessAdamantine, is a nonmetallic mineral.Transparent, translucent, opaque.2. Dolomite (carbonate)
Vitreous, pearly,Transparent to translucent,Perfect, rhombohedral, three directions.3. Chalk (CaCO3)
White,Very fragile,Acid gives effervescence.4. Gneiss
Light and dark strip or banding present alternatively,biotite, pyroxene have Mafic mineral shows dark bandingQuartz, Feldspar have Felsic mineral for light bandingThus, these are the identification characteristics of diamond, dolomite, gneiss, and chalk.
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What can we say about Gamma waves on
the electromagnetic spectrum?
A. They have the shortest wavelengths and the lowest
frequency
B. They have the longest wavelengths and lowest
frequency.
C. They have the shortest wavelengths and highest
frequency
D. They have the longest wavelengths and the highest
frequency
Which age structure diagram shows that the number of individuals decreases
steadily with age?
Slow Growth
Negative Growth
Stable Growth
Rapid Growth
Answer:
Slow Growth
Explanation:
The age structure diagram is a method of understanding the population. It is used by the demographers to estimate the growth, fall, or change in the population of an area. The data required is the distribution of the age and the sex of an area. When the diagram is constructed and made into a pyramidal shape, it represents that there is a rise in the population of the area. a stable population can be estimated by there is straight up and down. The rapid growth model represents a rapid decrease in the population with age. The slow growth model represents a steady decrease in the population with age
Which is the treatment of choice for malaria?
Answer:
Chloroquine phosphate.
Explanation:
Chloroquine is the preferred treatment for any parasite that is sensitive to the drug. But in many parts of the world, the parasites that cause malaria are resistant to chloroquine, and the drug is no longer an effective treatmen
Answer:Chloroquine phosphate.
Chloroquine is the preferred treatment for any parasite that is sensitive to the drug. But in many parts of the world, the parasites that cause malaria are resistant to chloroquine, and the drug is no longer an effective treatment.
Which of the following is an efferent neuron that is responsible for releasing a neurotransmitter that stimulates a muscle cell to contract?
a) Motor neuron
b) Sensory neuron
c) Interneuron
d) Neuroglia
Answer:
A. Motor Neuron
Explanation:
Motor neurons which can also be referred to as the lower/alpha motor neurons, furnishes skeletal muscle and causes the muscle to contract, this thereafter generates movement. Motor neurons releases neurotransmitter acetylcholine at the neuromuscular junction that stimulates muscle cells to contract.
At the point when the acetylcholine ties to acetylcholine receptors on the muscle fiber, an activity potential is proliferated along the muscle fiber in the two ways. The activity potential triggers the contraction of the muscle. On the off chance that the end of the muscle are fixed, keeping the muscle at a similar length, at that point the compression results on an expanded power on the backings which is referred to as isometric contraction. On the off chance that the muscle abbreviates against no obstruction, the constriction brings about steady power which is referred to as isotonic contraction. The engine neurons that control appendage and body developments are situated in the front horn of the spinal line, and the engine neurons that control head and facial developments are situated in the engine cores of the brainstem. Despite the fact that the engine framework is made out of various kinds of neurons dispersed all through the CNS, the engine neuron is the main manner by which the engine framework can speak with the muscles.
Ultimately, every movements will rely on the activity of the alpha motor neurons.
Humans autosomal cells have two copies each of 23 unique chromosomes. Match each cell division event and cell type according to the number of chromatids present.
a. primary oocyte arrested prior to ovulation
b. spermatozoa
c. oogonium prior to S phase
d. secondary polar body
1. 23 Chromatids
2. 44 Chromatids
3. 92 Chromatids
Answer:
a. primary oocyte arrested prior to ovulation >> 44 Chromatids
b. spermatozoa >> 23 Chromatids
c. oogonium prior to S phase >> 92 Chromatids
d. secondary polar body >> 23 Chromatids
Explanation:
An immature ovum can be defined as a cell that after oogenesis produces an ovum. The development of an immature ovum involves the following stages: oogonium (46 chromosomes, 2 chromatids), prymary oocyte (46 chromosomes, 4 chromatids), secondary oocyte (23 chromosomes, 2 chromatids), ootid (23 chromosomes, 1 chromatid) and mature ovum (23 chromosomes, 1 chromatid).
The secondary oocyte after the second meiotic division produces a mature ova and a secondary polar body (haploid, 23 chromosomes, 1 chromatid), which generally is not fertilized.
The spermatozoa are male haploid gametes (23 chromosomes, 1 chromatid) developed from germ cells.
which type of half-cell, when used along with a mn/mn2+ half-cell, gives the largest cell potential?
Answer: the options are not given, here are the options.
A. Cu2+/cu
b. Pb2+/Pb
c. Zn²+Izn
d. The potential for all three cells is the same.
The correct answer is A.
Cu2+/cu
Explanation:
A voltaic or galvanic cell is a cell that uses electrochemical energy generate from oxidation reduction reaction to produce electricity.
In this reaction manganese will be the anode and the Copper will be the cathode.
The half-cell reactions are given below and their respective cell potential.
Mn +Mn2+ + 2e- E°=-1.18v
Zn +2e=Zn E°=-0.76v
Pb+ +2r= Pb E° -0.13
Cu2+ + 2e= Cu E° 0.34
In solving the potential of the cell
E°cell= E° cathode -E°anode
For Mn and Cu.
(
s
)
+
Z
n
2
+
(
a
q
)
→
M
n
2
+
(
a
q
)
+
Z
n
(
s
)
E
∘
c
e
l
l
=
−
0.76
V
−
(
−
1.18
V
)
=
0.42
V
For Mn and Pb,
M
n
(
s
)
+
P
b
2
+
(
a
q
)
→
M
n
2
+
(
a
q
)
+
P
b
(
s
)
E
∘
c
e
l
l
=
−
0.13
V
−
(
−
1.18
V
)
=
1.05
V
For Mn and Cu,
0.34-(-1.18) = 1.52V.
Which happens to be the largest among the others.
Which of the following is not a part of the cell theory based on the observations and conclusions of Virchow? A) Cells come from cells. B) Cells contain tiny organelles. C) Cells are the basic units of life. D) Organisms are made of cells.
Answer:
A) cells come from cells.
Is not a part of cell theory based on the observations and conclusion of virchow.Anyone get these type of questions
Answer:
I can't see the graph
Explanation:
I can't see the graph
post it in the comments
I will give you the ans
sulfur is found in: lipids, proteins, sugars or DNA?
Sulfur can be found in proteins.
Only an experiment can prove:
O A. a biological basis.
O B. effectiveness.
O c. causation.
O D. a relationship of any kind.
Answer:
C).causation.
Explanation:
i am guess here but the most that make sense is C
Only an experiment can prove causation. To prove causation you need a random experiment. Thus, option C is correct.
What is experiment?The term experiment has been defined as the process of doing several observations in order to proof the particular topic. The topic which has been given by the teacher or the education institute. The experiment is considered as very important part of the education.
A double-blind experiment is when both parts lack information about the experiment, or the information that they have does not influence the results. Past experiences in the life of both experimenter and people on the experiment, can bias the results. To reduce or eliminate biases in the results, double-blind experiments are developed. Therefore, the people that designed the experiment do not administrate it.
Therefore, Only an experiment can prove causation. To prove causation you need a random experiment. Thus, option C is correct.
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A student is measuring the volumes of nectar produced by a flowering plant
for an experiment. He measures nectar from 50 flowers using a graduated
nder that measures to the nearest militer (ml) Which statement
describes a change that could help improve the results of his experiment?
A His measurements will be more accurate if he takes
measurements from an additional 100 flowers
B His measurements will be more precise if he uses a graduated
yinder that measures to the nearest tenth of a ml
His measurements will be more precise if he takes measurements
from an additional 100 flowers
His measurements will be more accurate if he uses a graduated
inder that measures to the nearest tenth of a ml
Answer:
b
Explanation:
A student is measuring the volumes of nectar produced by a flowering plant for an experiment. His measurements will be more precise if he uses a graduated yinder that measures to the nearest tenth of a ml. Thus option B is correct.
what is an experiment ?The experiment is to do test the hypothesis and basic foundation of the scientific method, the different steps include Make observations, form a hypothesis, design experiment, evaluation of result, accept or reject the hypothesis.
variable is an important parameter which are included in an experiment like dependent, independent and controlled variables; An independent variable can not be influenced by other variable factor.
The dependent variable depend on other types of variable where as Control variable is constant variable in an experiment can use to prevent bias of experiment.
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Briefly define and explain the differences between nature and nurture (GENERAL PSYCHOLOGY QUESTION BTW !!!!!!). please list up to at least 4-5 sentences
Answer:
In the"nature vs nurture" debate, nurture refers to personal experiences (i.e. empiricism or behaviorism). Nature is your genes. The physical and personality traits determined by your genes stay the same irrespective of where you were born and raised. Nurture refers to your childhood, or how you were brought up.
A long-term goal(s) of the bioinformatic analysis of a pathogenic bacterium is _________. Group of answer choices
A long-term goal(s) of the bioinformatic analysis of a pathogenic bacterium is the identification of molecules that could be used as targets by antimicrobial agents, or develop or improve a vaccine.
The mechanism that accounts for high frequencies of sickle cell hemoglobin in malarial environments is:
Answer:
Selection -Selective advantage
Explanation:
Sickle cell hemoglobin result from the sickle shape of red blood cell instead of the ameboid shaped cell.
Malaria is a deadly disease that result from mosquito bites.
Sickle cell hemoglobin has a selective advantage because of the presence of AS genotype, the s allele in a sickle cell is an harmful recessive allele that remains in the gene pool it becomes expressed when the s allele is expressed in SS form after an AS individual have mated with either an AS or SS individual.
AS genotype has a high resistance against malaria, they have the ability to thrive making the allele s that is recessive for sickle cell thrive well in the environment of malaria in an AS individual.
Dumping of organic wastes into a lake may result in anaerobic conditions in the lake because
Select one:
a. some microorganisms use the organic matter to respire aerobically, reducing the oxygen content of
the water
b. organic matter absorbs the oxygen from the water
O c. the space occupied by the organic matter reduces the volume that could be occupied by the
oxygen
d. organic matter results in waste heat
Answer:
A.
Explanation:
Just took the test, and I was told A.
Dumping of organic wastes into a lake may result in anaerobic conditions in the lake because some microorganisms use the organic matter to respire aerobically, reducing the oxygen content of the water.
What do you mean by organic wastes?"Organic waste is any material that is biodegradable and comes from either a plant or an animal."What do you mean by anaerobic conditions?It is a condition when the oxygen level decreases or disappear.Aerobic respiration- It is the process of respiration that takes place in the presence of oxygen gas to produce energy from food.When organic wastes are dumped into lake, the microorganism starts decomposing it by utilizing the oxygen present in water. The disappearance of oxygen is faster than its production by photosynthesis. So, the lake will now have an anaerobic condition.
Hence, the correct option is a. some microorganisms use the organic matter to respire aerobically, reducing the oxygen content of the water."
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Biological anthropologists studied the relationship between stress and female reproduction in a rural community in Guatemala. The researchers collected regular urine samples from women over the course of 1 year. Stress hormone and reproductive hormone levels from the samples were measured to determine a possible relationship between stress and reproductive function. Results suggest that stress may negatively impact reproductive health.
1. What is the primary type of biological anthropology addressed in this research?
2. Does the research also touch on topics that might be relevant to researchers in disciplines outside anthropology, such as biology or psychology? If so, which ones?
Answer:
A. Human behavioral ecology
B. Yes, this research may shed light on the mechanisms involved in human reproduction
Explanation:
Biological anthropology can be defined as a discipline that investigates human behavior in an evolutionary context. This research field is composed of several subdisciplines including, among others, evolutionary biology, forensic anthropology, evolutionary psychology, paleoanthropology, etc. The case above described refers to human behavioral ecology, which is also considered to be a subdiscipline of biological anthropology. This study case may also provide important information about what hormones may affect reproduction in humans, thereby having implications in reproductive medicine
The light dependent stage of photosynthesis uses chemical bond energy to make glucose and other carbohydrates. Select one: True False
Which climate below is warm all year with a dry summer and associated with a sea?
Arid
Highland
Humid Subtropical
Mediterranean
In an experimental study, the independent variable is
Which statement describes prey? They provide energy for dead organisms. They are killed by predators for energy. They obtain energy from dead organisms. They obtain energy from predators.
Answer:
the answer is B
Explanation:
The statement that describes prey is they are killed by predators for energy. The correct option is b.
What are prey and predator?Predators are often carnivorous creatures that hunt smaller animals for food. Predators hunt, capture, and eat the animals that make up their prey. When there are more predators in a particular environment, there will be less prey overall.
Predators lose population when they move to new locations in search of food, which increases the population of prey in the area from which they migrated. In other words, a cycle of events starting with a decrease in prey and ending with an increase in prey results from an increase in predators.
Therefore, the correct option is b, They are killed by predators for energy regarding the statement that describes prey.
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What is the best way to avoid E. Coli
Washing your hands. Avoid cross contamination.
Explanation: