circle is female, a square is male
PLZ help quick I really really really really really really need help
The following substrate is completely oxidized to CO2 by a cellular homogenate containing all necessary enzymes and coenzymes . It is assumed that the glycolysis, the citric acid cycle and oxidative phosphorylation are fully active and that the glycerol-3-phosphate shuttle is functional. What is the net gain of ATP molecules after the complete degradation of one Glyceraldehyde 3-phosphate molecule
Answer:
The correct answer is - 19 ATP.
Explanation:
One molecule of dihydroxyacetone phosphate fully oxidizes and generate 19 molecules of ATP by the following stochiometry
Direct ATP- 2
ATP from NADH ( 5X3)= 15
ATP from GTP 1
ATP from FADH2 1 or 1.5
Total 19 or 19.5
In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and water into glucose and oxygen), the oxygen gas emitted by an aquatic plant is collected over water at a temperature of 293 K and a total pressure of 754.8 mmHg. Over a specific time-period, a total of 1.31 L of gas is collected. The partial pressure of water at 293 K is 17.55 mmHg. What mass of oxygen gas (in grams) forms
Answer:
1.6896 grams
Explanation:
Given that:
Total pressure = The pressure of [tex]O_2[/tex] + partial pressure of [tex]H_2O[/tex]
∴
The pressure of [tex]O_2[/tex] = Total pressure - partial pressure of [tex]H_2O[/tex]
= (754.8 - 17.55) mmHg
= 737.25 mmHg
At standard conditions:
1 mmHg = 0.00131579 atm
∴
737.25 mmHg will be: (737.25*0.00131579) atm = 0.970065928 atm
P ≅ 0.97 atm
The temperature (T) = 293 K
Volume (V) = 1.31 L
Using ideal gas equation
PV = nRT
0.97 × 1.31 = n × 0.0821 × 293
[tex]n = \dfrac{0.97 \times 1.31}{0.0821 \times 293}[/tex]
n = 0.0528
mass of oxygen [tex]O_2[/tex] = no. of moles * molar mass
= 0.0528 * 32
= 1.6896 grams
My eyesight is weak plzz tell me how can i improve?❤
Answer:I will gladly love to help you but what can I improve you with.
Explanation:
The following diagram shows the branching tree diagram for some animals.
A slanting line is shown. There are five lines drawn vertically on this line at equal intervals. Shark, Frog, Kangaroo, Lion and Chimpanzee are written on top of each vertical line in order from left to right. Common Ancestor is written on the left end of the line. There is a black circle between each pair of these vertical lines. The first black circle is before Shark and says Vertebrae. The second black circle is between Shark and Frog and says Lungs. The third black circle is between Frog and Kangaroo and says Mammary gland. The fourth black circle is between Kangaroo and Lion and says Placenta. The fifth black circle is between Lion and Chimpanzee and says Large brain.
Which two organisms share the least number of derived characteristics?
Frog and kangaroo
Kangaroo and chimpanzee
Lion and chimpanzee
Shark and chimpanzee
Answer:
Shark and a Chimpanzee
The two organisms that share the least number of derived characteristics are Kangaroo and chimpanzee.
What is branching tree diagram?Branching tree diagram is a diagram that illustrate different groups or taxonomic group of organisms and how they are connected to each other.
Therefore, The two organisms that share the least number of derived characteristics are Kangaroo and chimpanzee.
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(I HAVE 20min TO ANSWER THIS, NEED HELP) Based on the field lines, what are the charges of the
objects?
OX: positive
Y: negative
OX: negative
Y: positive
O X: negative
Y: negative
OX: positive
Y positive
Answer:
X: positive
Y: positive
Explanation:
The charges of the objects are:
OX: positive
Y: negative
The concept of electric field lines is a way to visualize the electric field around a charged object or group of objects. Electric field lines point in the direction of the electric field at each point, and the density of the lines corresponds to the strength of the electric field.
By following the direction of the field lines, we can make an inference about the relative charge of the objects. For example, field lines that originate from a positive charge will terminate on a negative charge, while field lines that originate from a negative charge will terminate on a positive charge.
Therefore, based on the field lines, we can determine that:
Option 1 is incorrect, as the field lines terminate on a negative charge.
Option 2 is incorrect, as the field lines originate from a negative charge.
Option 3 is incorrect, as the field lines originate from a negative charge and terminate on a negative charge.
Option 4 is correct, as the field lines terminate on a positive charge.
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Which characteristic do both viruses and bacteria have in common?
A. They contain a nucleus and organelles.
B. They make their own food,
C. They require a host cell to reproduce.
D. They contain nucleic acids such as DNA and RNA.
Answer:
:D
Explanation:
What is the answer to question 1
Answer:
TTT GCC AGT
Explanation:
A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she
has found produces a cone. What might they say about how this plant is different from an angiosperm?
It's because it does not depend on insect pollination.
Auroras occur in the
a. troposphere
b. stratosphere
c. mesosphere
d. thermosphere
Please select the best answer from the choices provided
C
because they happen in the north or south pole
Answer:
c. mesosphere
Explanation:
How do we know that humans
are causing the Earth to warm
and the climate to change?
Explanation:
we can track climate patterns back to us on earth and the excessive use of fossil fuels and other gasses contribute to this - its basically proven that we are the reason climate change is a thing. climate will change by itself by us humans are causing this to be much faster than it should be
What do you see happening in the graph 65 million years ago?
Answer: The dinosaurs go extinct.
Explanation: It literally says right there
Which nation did the United States compete with during the Space Race?ChinaJapanthe Soviet Unionthe United KingdomMark this and return
Answer: Soviet Union
Explanation:
Answer:
I think it's "The Soviet Union"
define what an intron and exon is
I need help with a quiz.
Read each past tense verb form. Then decide if it is regular or irregular.
bought
regular
irregular
Answer:
it is irregular
Explanation:
hope this helps
Lexi's teacher gave each person in the class several cotton swabs to test for bacteria on surfaces of various objects. Lexi tested many objects like the pencil sharpener, the dry-erase board, the doorknob, and the overhead projector. She found that the doorknob on the outside of her classroom had more bacteria than any other tested object. Which of the following questions would best help Lexi find out more information about the doorknob's bacteria? A. What color is the doorknob? B. What are the sources of the bacteria? C. Is the doorknob bigger than the other objects? D. What does the doorknob look like?
Answer: what are the sources of the bacteria?
Explanation:
5. A student examines the winged insect shown below. Order Go 103 Mantodea Raphidioptera Coleoptera Dichotomous Key Sep Characteristics Insect has an extremely long prothorax (neck) Insect has a short or no prothorax Forelegs come together in a "praying" position Forelegs do not come together in a "praying" position Wings are armor-like with mermbranous hind Wings undereath Wings are not armor-like Wings are triangular in shape Wings are not triangular in shape and head is elongated Insed lacks a proboscis (long, slender snout) and has long filaments at abdominal up Insect has a proboscis and lacks long filaments at abdominal tip Go to 4 Go te 5 Mecoptera Ephemeroptera Lepidoptera Based on the dichotomous key, in what order should this insect be classified? A. Mantodea B. Raphidioptera C. Coleoptera D. Lepidoptera
Answer:
I’m not sure if it’s correct but I thinks it’s A
Explanation:
Looked it up online
Answer:
Its C - Coleoptera
Explanation:
In order for a trait to be considered a competitive advantage, the trait must be?
A. Allow the individual to utilize fewer food and water resources to survive.
B. Allow the individual to be stronger and outcompete others
C. Allow the individual to survive better and reproduce more in the environment
D. Allow the individual to have fewer diseases and not get sick
Answer:
1. Allow the individual to survive better and reproduce...
2. Hooves are better equipped for environments with plains.
3. An insect species with high reproduction rates and a significant...
4. Genetic variation
5. Higher reproduction rates
Explanation:
Good luck ♡
In order for a trait to be considered a competitive advantage, the trait must allow the individual to survive better and reproduce more in the environment. So, the correct option is C.
What do you mean by Trait?
A trait may be defined as the appearance or a manifestation of characters. It is also known as Phenotypes.
To understand better about competitive advantage, an individual must carry the trait of relative fitness which defines the relative survival and relative reproduction of an individual.
Therefore, in order for a trait to be considered a competitive advantage, the trait must allow the individual to survive better and reproduce more in the environment.
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estructura celular por medio de la cual se da a cabo el intercambio de sustancias en las bacterias
Answer:
uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhb
Part E
Which of the following variables did Pasteur change in his experiment to test the hypothesis of
spontaneous generation?
The variables that Pasteur changed in his experiment to test the hypothesis of spontaneous generation is the shape of the flask
Pasteur in 1856 was known for his contribution to the science world through the study of the causes of spoilage in beer and wine. He demonstrated his knowledge from his discovery of the properties of fermentation by microorganisms.
He demonstrated and discovered that airborne microbes were the cause of food spoilage not a spontaneous generation with his swan-neck flask experiment. He went ahead with a suggestion that if microbes were responsible for food spoilage and fermentation, they could also be responsible for causing infection and this was the foundation for the germ theory of diseases.
In the later year, Pasteur established his previous experiment with a new one. In this new experiment, he made several flasks with long, twisted necks called the swan-neck flasks where he boiled broth and sterilized it. The essence of the swan neck design is to inhibit the introduction of airborne microorganisms into the flask by trapping them between the twists and bends of the flask and also to allow the exchange of air in the flask with the surrounding air.
Based on the theory above, we can conclude that the variables that Pasteur changed in his experiment to test the hypothesis of spontaneous generation is the shape of the flask
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Question 6 (1 point)
What is a Eukaryotic cell?
A cell with DNA that is not contained within a nucleus
A cell with DNA contained in a nucleus
A single celled organism
A cell that produces its own food through photosynthesis
ос
Od
The biceps reflex tests a muscle spindle reflex arc (like the patellar reflex). The biceps brachii is innervated by the musculocutaneous nerve and the triceps brachii is innervated by the radial nerve. When the biceps tendon is tapped with a hammer, action potential generation ___________ in the musculocutaneous nerve and _____________ in the radial nerve.
Answer:
The biceps reflex tests a muscle spindle reflex arc (like the patellar reflex). The biceps brachii is innervated by the musculocutaneous nerve and the triceps brachii is innervated by the radial nerve. When the biceps tendon is tapped with a hammer, action potential generation increases in the musculocutaneous nerve and decreases in the radial nerve.
Explanation:
The biceps reflex test is performed to evaluate the functionality of the C5 and C6 reflex arcs and is done by quickly depressing the biceps brachii tendon by using a reflex hammer.
When the biceps brachii tendon is stimulated, the normal response would be a reflex contraction of the biceps brachii muscle, producing the flexion of the elbow. The contraction of this muscle is produced thanks to an increase in the action potential generated in the musculocutaneuous nerve -because this is the nerve that innervates this muscle-, which also generates a decrease in the action potentials in the radial nerve -given that this nerve innervates the antagonist muscle of the biceps brachii, the triceps brachii-.
Question 7
In prokaryotic cells, the ribosomes:
O A. synthesize proteins
O B. synthesize nucleic acids
O C. synthesize sugars
O D. synthesize fatty acid
Answer:
[tex]\boxed {\boxed {\sf A. \ Synthesize \ proteins}}[/tex]
Explanation:
The ribosomes are small organelles made of RNA and proteins. Its function is the same in both prokaryotic and eukrayotic cells: protein synthesis.
The process begins in the nucleus. The DNA and genetic information is housed here. Certain sections are transcribed and copied to make messenger mRNAs that can fit through the nucleus and pores to travel out to the ribosomes.
The ribosomes use the mRNA in a process called translation. They match each set of 3 nucleotides (a codon) in the mRNA to 1of 20 different amino acids. A special sequence of amino acids forms, the molecule folds, and a protein is formed.
So, a ribosome is the main site for protein synthesis and the correct choice is A.
Motor neurons of the autonomic nervous system carry signals from the
central nervous system to cardiac and smooth muscles and
Answer
Cardiac and smooth muscles
Explanation:
Extracellular signal molecules that are hydrophilic must bind to a cell-surface receptor in order to signal a target cell to change its behavior. These are examples of hydrophilic hormones in animals: A. tyrosine-derived epinephrin and norepinephrin B. insulin and glucagon C. serotonin and melatonin (tryptophan-derived mammalian neurotransmitters D. All of the above E. None of the above
Answer:
The correct answer is - D. all of the above.
Explanation:
Hydrophilic hormones are the hormones that can not pass through the cell membrane as they are poorly lipid-soluble and cannot pass through cell membranes and bind the receptors present on the surface of the membrane.
Insulin and glucagon are peptide hormones that bind to a receptor in the target cell's membrane surface. Norepinephrine and epinephrine are catecholamines that are hydrophilic in nature. Seratonin and Melatonin are also bound on the surface receptor due to their hydrophilic nature.
What building block is DNA made of
Answer:
nucleotides
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
how do floods affect abiotic and biotic factors
Water is important to every organism. A great portion of chemical reactions that organisms use take place in water, so without water, organisms would not be able to metabolize anything. ... Primary consumers (herbivores) would suffer twofold as their prey (the plants) die and their water source disappeared.
Multiple Choice
Which of the following describes the best way that feed can be modified in order to decrease the need
for antibiotics?
A.mix in organ meats from other animals
B.allow the animals to forage some of their own food
C.include roughage and elements of a natural diet
D.add hormones or other additives to the feed
Definition: This is an organism that has two identical alleles for the same genetic trait.
Answer:
the answer to that would be a heterozygous organism.
Explanation:
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are two long-chain fatty acids necessary for the development of Multiple Choice the nervous system, brain, and eyes. the endocrine and integumentary systems. the circulatory and respiratory systems. the muscles and bones.
Answer:
The correct answer is: the nervous system, brain, and eyes.
Explanation:
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are long-chain polyunsaturated fatty acids that have great nutritional value, as they are omega-6 and omega-3 fatty acids, respectively, meaning they are essential fats that cannot be produced by the body and, therefore, need to be part of the diet.
The consumption of ARA and DHA has been directly linked to the development of the brain and the retina, and the inclusion of these fatty acids in the nutrition of infants has been proven to be extremely beneficial to their growth.
Besides their functions in the development of the nervous system and the eyes, ARA and DHA play a role in maintaining a healthy immune system and preventing cardiovascular conditions.
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are two long-chain fatty acids necessary for the development of the nervous system, brain, and eyes.
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) represent two long-chain polyunsaturated fatty acids.In mammals, these polyunsaturated fatty acids (ARA and DHA) are fundamental during the development of the nervous system, and they are found in milk.It is for that reason that in some countries DHA and ARA nutrients are added to the milk formulas used to feed babies.In conclusion, arachidonic acid (ARA) and docosahexaenoic acid (DHA) are two long-chain fatty acids necessary for the development of the nervous system, brain, and eyes.
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