Answer:
"Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy"
Explanation:
Glycolysis | Boundless Biology - Lumen Learning
Do eukaryotic cells replicate their DNA in the cytoplasm and nuclus?
ASAP Which of the following is true about DNA in a prokaryotic cell? A. Wound tightly in the nucleus. B. Connected to protein that help it condense. C. It is coiled into a genophore, but not inside a nucleus. D. Made of only a single strand instead of double.
Answer:
C. It is coiled into a genophore, but not inside a nucleus.
Hope this helps.
Which of Newton's laws of motion is the "action-reaction" law? A. first B. second C. third pls help i really need help asap
[tex] \large \longrightarrow \mid \mathbb{ \bf\pink{ANSWER}} \mid \longleftarrow[/tex]
Newton's 3rd law of motion is the " action - reaction " law .
This 3rd law states that ;
If a body A applies a force on body B then body B also applies force on body A which is equal in magnitude and opposite in direction .
In simple terms it is stated as ;
For every action there is an equivalent opposite reaction .
This is represented as ;
[tex]\tt{ {F}_{AB} = - {F}_{BA} }[/tex]
Example :-
When a birds flys in the air it pushes the air with it's wings downwards ( action ) . Similarly, the air pushes the bird upwards ( reaction ) .
The lock-and-key mechanism refers to a) the complementary shapes of an enzyme and a substrate. b) the attractive forces between an enzyme and a substrate. c) the ability of an enzyme to lower the activation energy of a reaction. d) the ability of an enzyme to “unlock” the products of a reaction.
Answer:
A. The complementary shapes of an enzyme and a substrate
Explanation:
The Lock-and-Key model was made to show how an enzyme's active zone fits a substrate and how they bond together. It correlates just like a lock and a key; you have to have the correct-shaped key in order to open a lock. Same process of thought with the enzymes; you must have the same shape for both in order to bind together,
Answer:
d
Explanation:
human infection of Toxoplasma is initiated in all the following ways except : 1. accidental ingestion of rodent feces 2.ingestion of contaminated undercooked meatform cattle, pigs, or sheep 3.ransplacental infection 4. Transplacental infection 5.Transfusion of contaminated blood
Answer:
1. accidental ingestion of rodent feces
Explanation:
Toxoplasma comes from infection with the Toxoplasma gondii parasite, which is a parasite found in cat feces.
Hope this helps.
Summarize the role of bacteria in keeping the nitrogen cycle balanced.
Answer:
dear user
the answer is given above
What’s one example of a real-world problem which you might use knowledge from biological anthropology to help solve?
Answer:
Biological anthropology shows that cultural contexts are useful to explain human evolution.
Explanation:
Biological anthropology is a research area focused on the study of biological and behavioral determinants associated with human evolution. Biological anthropology enables us to trace the evolutionary origins of hominids and primates in general. Moreover, this discipline also sheds light on how different environments act on the mechanism of natural selection and thus shape human behavior. However, biological anthropology should not be considered to be part of social Darwinism used to apply Darwin's ideas to social policies.
Which is a disaccharide?
Answer:
Disaccharidases are glycoside hydrolases, enzymes that break down certain types of sugars called disaccharides into simpler sugars called monosaccharides. In the human body.
Explanation:
Disaccharide, also called double sugar, any substance that is composed of two molecules of simple sugars (monosaccharides) linked to each other. ... The three major disaccharides are sucrose, lactose, and maltose.
Three common disaccharides:
#sucrose — common table sugar = glucose + fructose.
#lactose — major sugar in milk = glucose + galactose.
#maltose — product of starch digestion = glucose + glucose.
A disaccharide is a sugar that can be created when two monosaccharides are linked together with glycosydic. Disaccharides are soluble in water and a few examples of this are; maltose, sucrose, and lactose. Finally, they’re also one of four chemical linkings for carbohydrates.
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What is an advantage of nuclear power plant over coal power plant?
cost and lack of nuclear waste
Explanation:
Blank provide energy to the ecosystem and convert carbon dioxide into oxygen
A predators
Bheterotrophs
C autotrophs
D consumers
Answer:
Autotrophs
Explanation: Pennfoster
It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation. It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation.
a. Sequences of hydrophilic amino acids are the segments of the protein that span the membrane.
b. Sequences of hydrophobic amino acids are the segments of the protein that span the membrane.
c. Sequences of hydrophobic amino acids are the segments of the protein that dissolve in the membrane.
d. Sequences of hydrophilic amino acids are the segments of the protein that dissolve in the membrane.
Sequences of hydrophobic amino acids are the segments of the protein that span the membrane. Thus option B is correct.
What are the levels of protein structure?
The Primary structure of proteins is the linear structure of amino acids formed by Covalent, peptide bonds to form primary structure of protein.
Secondary structure protein defined as the folded structures formed by hydrogen bonding among the amine and carboxyl group of the peptide chain and it finally form polypeptide then into protein.
These secondary structure present in two structure such as α – helix which form a polypeptide chain by hydrogen bonding and twisting into a right-handed screw with the -NH group of each amino acid residue.
The β – pleated sheet form of protein are stretched out ,laid side by side together by intermolecular hydrogen bonds.
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Which of the following would you use to inhibit the contraction of muscle in vitro as a control for an experiment you are conducting?
A. a motor protein ATPase inhibitor
B. a drug that increases T-tubule depolarization
C. a drug that increases sarcoplasm Ca2+ concentration
D. a Ca2+-ATPase inhibitor
E. All would inhibit muscle contraction.
Answer:
The correct answer is option A. a motor protein ATPase inhibitor.
Explanation:
Motor proteins are sub-atomic motors that utilize ATP hydrolysis to move along cytoskeletal filaments inside the cell. They satisfy numerous capacities inside the biological system, controlling the sliding of filaments for muscle contraction and intervening intracellular movement along biopolymer filament tracks.
The two globular head motor areas in heavy chains can change over the chemical energy of ATP hydrolysis into mechanical work to move along microtubules.
Thus, in vitro experiment inhibitor of the motor protein, ATPase will be a control.
What are two main abiotic factors that affect organisms in marine ecosystems? A. Oxygen level and water temperature B. Predators and competition C. Salinity and water temperature D. Predators and food availability
Answer:
dear user the answer is option A.oxygen level and water temperature and C.salinity and water temperature.
hope this helps
if it's useful to u plz thank and try to mark as brainliest
Answer:
It would be A
Explanation:
Earth is comprised of four systems, or spheres. Give one example of how a change in one of these spheres of the Earth can affect one or more of the other spheres.
Answer:
Earth is comprised of four circles: the lithosphere, hydrosphere, atmosphere, and biosphere. Changes in any piece of the Earth's framework influences every single other circle.
For example, storms structure in the air which bring precipitation and leads to the rain. Rain influences the hydrosphere by expanding the measure of water in a river, which influence the progression or flow of the stream. flowing rivers change the outside of the lithosphere. Plants and creatures in the biosphere rely upon water to endure.
Judging from their basal metabolic rates (an indicator of thyroid function), categorize the rats as hypothyroid (low thyroid levels; BMR below 1600), euthyroid ("good," or normal, thyroid levels; BMR = 1650-1750), or hyperthryoid (high thyroid levels; BMR above 1800). The normal rat is:_______.a. hypothyroid.b. euthyroid.c. hyperthyroid.
Answer:
Option b (Euthyroid) is the correct option.
Explanation:
The condition of obtaining everyday activities including its thyroid gland. Compare hyperactive (overactive) as well as hypothyroid (under-active) type thyroidsThe BMR (Basal metabolic rate) has always been regulated by the hypophyseal or otherwise thyroid glands, thyroxine significantly reduces metabolism.Its normal rate will be:
⇒ [tex]1673 - 1735 \ ml / O_{2}/ kg/ hr[/tex]
The other choices have no relation with the particular situation. So the argument presented however is the right one.
explain why all the offspring in the F1 generation were yellow instead of half being yellow and half green, or some other mix of the colors. Hint: Remember that Mendel coined the terms dominant and recessive.
Answer:
Yellow is a dominant trait.
Explanation:
There are dominant alleles and recessive ones. Say Y is a dominant allele and y is a recessive one. YY makes yellow, Yy makes yellow, and yy makes green. It takes just one dominant allele to make a phenotype (physical traits) express it. Look at the photo to help guide you. Using a punnet square you can find that both parents give a dominant allele and it only takes one.
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7. Which is a way that geological processes affect nutrient cycling?
People burn coal, oil, and natural gases.
o Weather controls when volcanoes erupt.
O People use ocean currents to predict rain.
O Weather moves gases in the atmosphere.
Answer:
Weather moves gases in the atmosphere.
Explanation:
Weather moves gases in the atmosphere. Therefore, option (A) is correct.
What is nutrient cycling?Nutrient cycling is the process by which nutrients are transformed, transported, and exchanged between different parts of an ecosystem. Nutrients are essential for the growth and survival of all living organisms, and they are constantly being recycled through various processes in the environment.
For example, plants absorb nutrients from the soil and water, and then animals consume these plants and incorporate the nutrients into their own bodies. When animals die, their bodies decompose, releasing the nutrients back into the soil or water, where they can be taken up by plants again. This continuous flow of nutrients between living organisms and the environment is known as nutrient cycling.
Nutrient cycling is important because it helps to maintain the balance of nutrients in an ecosystem and supports the functioning of the ecosystem as a whole. It is influenced by many factors, including geological processes, weather patterns, and the actions of living organisms.
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What is ovulation?
A. When an egg enters the fallopian tube
B. When an egg implants into the uterus
C. When an egg is produced in the ovary
D. When an egg is fertilized
Answer: A. When an egg enters the fallopian tube
Explanation:
Ovulation is when an egg is produced in the ovary. Therefore, the correct statement is option C.
What is ovulation?Ovulation is the process by which a mature egg is released from the ovary during the middle of the menstrual cycle. Ovaries contain thousands of immature eggs which then undergoes maturation and further develop.
When an immature egg reaches maturity, it releases into a single, fully developed egg that passes through fallopian tube towards the uterus. If the egg is fertilized by a sperm cell in uterus, it results in pregnancy.
If the egg is not fertilized, it will be expelled from the body during menstruation. This process is regulated by a hormones and feedback mechanisms, such as hypothalamus, pituitary gland, and ovaries. Several factors like stress, illness, and changes in body weight can affect ovulation and also the fertility.
Therefore, an egg is produced in the ovary during ovulation.
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what is gamete A. Two chromosomes that are identical B. two sets of sister chromatids C. a diploid cell that split during meiosis D. a sperm or egg produced by meiosis
Answer:
A
Explanation:
Answer:
D
Explanation:
a sperm or egg produced by meiosis
A certain red-flowered plant is self-fertilized. The progeny are 131 white-flowered plants and 169 red-flowered plants. Give a genetic explanation for these observations.
Answer:
Ratio of red flowers: white flowers = 169: 131 = 9: 7 as given in the question. It is clear that the color is possible only by at least 2 genes.
Let assume genes are A and B.
Now the cross AaBb (Red) x AaBb (Red)
Gametes ----------> AB Ab aB ab AB Ab aB ab
AB Ab aB ab
AB AABB (Red) AABb (Red) AaBB (Red) AaBb (Red)
Ab AABb (Red) AAbb (White) AaBb (Red) Aabb (White)
aB AaBB (Red) AaBb (Red) aaBB (White) aaBb (White)
ab AaBb (Red) Aabb (White) aaBb (White) aabb (White)
The ratio of Red flowers: White flowers is 9:7
The red color flower is produced when both the alleles of genes are dominant. if any of the alleles of genes is recessive, it will produce the white color flower. This is one of example complementary gene interaction where the presence of both genes in the dominant form complements each other to produce red color flowers.
What is the name of this tree?
Answer:
pond apple..is the name of that tree.
Atrial and ventricular systole do not overlap under normal condition because of which of the following?
a) a delay of the action potential at the atrioventricular node
b) rapid conduction by the internodal pathway
c) rapid conduction by the bundle branches
d) the atriventricular node setting the pace of contractions
Answer:
) a delay of the action potential at the atrioventricular node
Explanation:
The reason for the short delay of 0.9s. is to ensure maximum contractions of the atrial to eject blood into the relaxed ventricles.(ventricular filing).
Thus when the atrial is contracting,the ventricles relax and vice versa.The short duration for the artrial contraction to occur for blood ejection into the relax ventricles guarantee that artial systole can not overlap the ventricle systole.
The artial must contract first for the ventricle fillings,and when this is completed,the atrioventricular valves closes,and blood flow through the aorta to the systemic circulation from the left ventricle and into the pulmonary circulation through the pulmonary vein.
This occurs simultaneously with both the R and L Artrial,and right and left Ventricles.
One reason the skeletal system is important is because __________. A. without the skeletal system, an individual would not have enough calcium to live B. the skeletal system creates the connective tissue and tendons that allow the body to move C. the skeletal system is solely responsible for housing the body's immune system D. the skeletal system is responsible for controlling functions of the entire body Please select the best answer from the choices provided. A B C D
Answer:
b
Explanation:
One reason the skeletal system is important is because the skeletal system creates the connective tissue and tendons that allow the body to move, hence option B is correct.
What is skeletal system?The skeletal system is an arrangement of numerous components that cooperate to support your movement.
Your bones, which are solid objects that form the skeleton of your body, make up the majority of your skeletal system. The skeleton of an adult human has 206 bones.
Your body's skeletal system serves as a support system for it. It offers protection for organs, generates blood cells, gives the body its structure, enables mobility, and stores minerals.
Therefore, the skeletal system creates the connective tissue and tendons that allow the body to move.
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An atom has a mass of 35 a neutron mass of 35 and an electron mass of 35. What is the estimated mass of the atom
Answer:
The estimated mass of the atom is 70
Explanation:
(35 protons + 35 neutrons)
During the early stages of meiosis, two chromosomes in a homologous pair may exchane
segments, producing genetic variation in sex cells. This process of exchange is called
Select one:
a. crossing over
b. nondisjunction
c. transcription
O d. genetic shuffling
Check
Answer:
The answer is option A.
crossing over
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A hypothesis is a(n) ______________, while a theory is a(n) ______________.
Answer
this is a little vague. for hypthesis, you could use guess, assumption, or conjecture. for theory, you could use prinicple or well-supported idea.
Explanation:
Biodiversity can be studied at which of three levels?
Answer:
genetic diversity, species diversity, and ecosystem diversity.
Explanation:
Answer:
Biodiversity is usually explored at three levels - genetic diversity, species diversity and ecosystem diversity.
Explanation:
Which of the following organisms have some strains that naturally carry a circular, 6.3-kb, 2-micron plasmid?
A. Escherichia coli
B. Saccharomyces cerevisiae
C. Agrobacterium tumefaciens
D. Drosophila melanogaster
Answer:
B
Explanation:
The correct answer for the organism with strains that naturally carry a circular, 6.3-kb, 2-micron plasmid would be Saccharomyces cerevisiae.
Most strains of Saccharomyces cerevisiae have been found to possess extrachromosomal elements in their nucleus. This extrachromosomal element is circular in nature and of about 2 microns and 6.3 kb without any known specific advantage or function.
Due to the simple nature of the yeast's plasmid, it has been a major source of study for the understanding and control of how replication works in eukaryotic organisms.
The correct option is B.
A cell has a defect in its receptor for growth factors, preventing growth factors from attaching to and signalling the cell. Based on this, which prediction below is most likely?
A. The cell will remain dormant in GO phase.
B. The cell will grow uncontrollably and continue to divide as long as it has food.
C. The cell will replicate its DNA but be unable to begin mitosis.
D. The cell will begin DNA replication but will be unable to complete S phase.
Answer:
Option B
Explanation:
B. The cell will grow uncontrollably and continue to divide as long as it has food.
Cell growth is theeoretically stimulated by the binding of growth factors to their receptors using signaling pathways.
These pathways are regulated by proteins which are encoded for in the genes.
The gene that controls the regulation of these pathway when mutated produce malfunctioning signaling protein thus not allow for regulations of the cell cycle causing uncontrollable cell division. These mutated genes are called oncogenes.
Which center bears the primary responsibility for generating the respiratory rhythm, but is influenced by several other centers
Answer:
This is the Ventral Regulatory Group-VRG
Explanation:
In the medulla,there are four groups of neurons which forms the exhalation parts of the respiratory control.These 4 groups are called the VRG.They occupy 5mm anterior in length, and laterally positioned to the dorsal respiratory group.They are therefore said to occupy the ventrolateral part of the medulla.
The dorsal respiratory group(DRG) consists of the inspiration neurons,contrary to the VRG. They do not extend to the DRG,but the DRG, extends to them
They(VRG) function in propagating action potentials needed for the mechanisms of respiration.(exhalations), and Inspirations