Answer: E.
Explanation: the krebs cycle is a series of chemical reactions used by the body to produce energy, or ATP. it does this through the oxidation of pyruvic acid. for this reason, the krebs cycle is also called the citric acid cycle!
A series of chemical reactions in which ATP is produced from the oxidation of pyruvic acid. So, the correct option is (E).
What is Krebs cycle?The citric acid cycle is also known as the Krebs cycle or TCA cycle. It is defined as a series of chemical reactions to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats and proteins.
The main function of the Krebs cycle is to produce energy, which is stored and transported in the form of ATP or GTP. The cycle is also central to other biosynthetic reactions where the intermediates produced are needed to make other molecules, such as amino acids, nucleotide bases, and cholesterol.
The Krebs cycle also consumes pyruvate which produces three things:
1. Carbon dioxide
2. A small amount of ATP
3. Two types of reductant molecules called NADH and FADH.
Thus, a series of chemical reactions in which ATP is produced from the oxidation of pyruvic acid. So, the correct option is (E).
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GIVING BRAINLY!! The relationship between the mass of an object and its weight on Earth is constant.
A True
B) False
Answer:
The mass of an object is never zero. You measure mass with an ordinary balance on Earth or an inertial balance in space. Weight depends on the effect of gravity, so it can change depending on where it's measured. In the absence of gravity, weight can be zero.
Explanation:
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spermatogenesis results in (a) two haploid cells (b) three haploid bodies (c) one haploid sperm cell and three polar bodies (d) four haploid sperm cells
D - The meiosis process results in the split of the cell into 4
Which statement about cellular respiration is true?
It produces oxygen.
It requires water.
It is used by every living cell.
it converts energy to food.
Which property is shared by the cells of all living things?
A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.
B. The cells have chromosomes that are located inside a membrane-bound- nucleus.
C. The cells are surrounded by a phospholipid bilayer and a cell wall made of
cellulose.
D. The cells rely on mitochondria to carry out aerobic cellular respiration.
Answer:
A
Explanation:
B) not all cells have a nucleus. For example, prokaryotes have no nucleus
C)Not all cells have a cell wall.(Animal cells don't)
D) not all cells have mitochondria (Prokaryotes don't)
A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.
Living things are those organisms that have life and they possess the basic characteristics that enable them to be termed as living. This include growth, reproduction, irritability etc.
The property listed in the options shared by cells of all living things is the cell contain DNA composed of adenine, thymine, guanine and cytosine.
All living things contain the genetic material (DNA) that carry the needed information essential for their cells to function. Although some living things do not have a membrane bound nucleus eg prokaryotic cells. Many differences therefore exists that differentiates the living things from one another bringing them into groups.Learn more: https://brainly.com/question/18628083
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In general, freshwater fish require salinity (salt) levels of 1.0 ppt or lower. You measure the salinity of a freshwater aquarium to be 3.0 ppt. Predict what will happen to the cells of the fish as a result of the salinity level in the aquarium.
1) Is tank water hyper, hypo or isotonic to the fish cells? Explain why.
2) Based on your answer to part 1, what will this type of solution ultimately do to the cells of the fish? ( which way will the water move into or out of the fish cells?)
The cells of the fish will lose water to the aquarium water by osmosis, shrink up, and probably die with time.
1) The tank water is hypertonic to the cells of the fish. Hypertonic solutions are those with higher solute concentrations compared to the sap of the cells placed in them. Hypotonic solutions have lower while isotonic solutions have the same concentrations as the sap of cells placed in them.
2) Because the tank water is hypertonic, the cells of the fish will lose water to the water in the aquarium. When this happens, the cells shrink, and may eventually start dying if the situation remains unchanged enough.
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What is the true nature of science?
Answer:
Scientific Knowledge Is Based on Empirical Evidence; Scientific Knowledge Is Open to Revision in Light of New Evidence; Science Models, Laws, Mechanisms, and Theories Explain Natural Phenomena. Science Is a Human Endeavor; and. Science Addresses Questions About the Natural and Material World.
The primary factors which determine each biome are:
land features
plate tectonics
sunshine
rainfall
temperature
Answer:
temperature is the most important factor of any biome
Shawn sells ice cream at his mom's yard sale, but he notices that the ice cream melts too fast. Which is the best way to slow the melting? Place the ice cream in the sun. Place the ice cream in a cooler. Place the ice cream near a fan. Place the ice cream under a tent.
When you need to convert from one system of measurement to another, you should convert to the a) system that will have the highest number. b) system that will have the smallest number. c) system used on the medication label. d) metric system.
Answer:nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Explanation:
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmjnn bnnnnnnnn
All organic compounds contain the element a. Carbon b. Hydrogen c. Nitrogen
Answer:
yes
Explanation:
becawse organic cpd are a compound that formed from living things
from the roots up through the stems and into the leaves, replacing
the water used in ———— ??
Answer:
Transpiration
Explanation:
Plants lose water by transpiration.
How are the different fields of biology related to each other
Answer:
Modern principles of other fields— chemistry, medicine, and physics, for example—are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics. Biology is subdivided into separate branches for convenience of study, though all the subdivisions are interrelated by basic principles.
Explanation:
Answer:
Hey mate.....
Explanation:
This is ur answer.....
There are three major branches of biology – botany, zoology and microbiology. Botany is the branch of biology which deals with the study of different aspects of plants. Theophrastus is known as the father of Botany. Zoology is the branch of biology connected with the study of different aspects of animals.
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Select the correct answer.
Which one of the following is NOT a macromolecule?
O protein
nucleic acid
carbohydrate
water
Give two ways the sperm cell is adapted for fertilisation
Answer: (1) It has a tail to travel to the egg (2) contains a nucleus in the head which will fertilise the egg
Explanation: Firstly it has a tail to help it travel to the egg. Secondly it contains the nucleus in the head that will fertilise the egg. Thirdly the acrosome contains enzymes in order for the sperm to penetrate the egg. Finally, the sperm cell is packed with mitochondria to provide the energy needed to reach the egg.
Sperm cells are highly specialized for the purpose of fertilization. Here are two ways in which sperm cells are adapted for this process: Streamlined shape, Acrosome, and enzymes.
1. Streamlined shape: Sperm cells have a streamlined shape, often described as being tadpole-like, with a long and slender tail (flagellum) and a compact head region.
This shape is adapted for efficient swimming through the female reproductive tract to reach the egg. The flagellum allows the sperm to propel itself with whip-like movements, providing mobility and the ability to navigate through the female reproductive system.
The streamlined shape reduces drag and enables the sperm to move swiftly towards the egg, increasing the chances of successful fertilization.
2. Acrosome and enzymes: The head region of a sperm cell contains a specialized structure called the acrosome. The acrosome is a cap-like structure that covers the front portion of the sperm's head.
Inside the acrosome, there are enzymes, such as hyaluronidase and acrosin, which play a crucial role in fertilization.
When the sperm reaches the vicinity of the egg, the enzymes are released and help the sperm penetrate through the protective layers surrounding the egg, such as the zona pellucida.
Thus, the streamlined shape and the presence of the acrosome with enzymes are two important adaptations of sperm cells that increase their chances of successful fertilization by facilitating efficient swimming and penetration of the egg's protective layers.
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Which of the following is not
one of the kingdoms of living
things?
a Fungi
b. Bacteria
c. Animalia
d. Protista
Answer:
B. Bacteria
Explanation:
Because bacteria are unicellular organisms belonging to the prokaryotic group where the organisms lack a few organelles and a true nucleus
Bacteria is not one of the kingdoms of living things. So, the correct option is (B).
What are the Different kingdoms of Living things?Living things are divided into 5 kingdoms. These are:
1. Monera
It is the kingdom of microscopic living things that groups together prokaryotes (archaea and bacteria) present in all habitats and composed of single-celled things without a defined nucleus. Bacteria belongs to this kingdom.
2. Protista
This group is primitive of eukaryotic which is paraphyletic which includes common ancestor but not all its descendants. Protozoa belongs to this kingdom.
3. Fungi
This kingdom includes yeasts, molds and all species of mushrooms and toadstools, which are multicellular aerobic heterotrophic eukaryotes, have chitin in their cell walls, feed on other living things, and reproduce by means of spores.
4. Plantae
Trees, plants belong to the kingdom Plantae, which is characterized by its sedentary, multicellular and eukaryotic nature. They are autotrophs, whose cells contain cellulose and chlorophyll which are essential for life on Earth as they release oxygen through photosynthesis.
5. Animalia
The kingdom Animalia is divided into two major groups – vertebrates and invertebrates which are multi-celled, heterotrophic eukaryotes that have aerobic respiration, sexual reproduction and the ability to move. This kingdom includes mammals, fish, birds, reptiles, amphibians, insects, molluscs and annelids.
Thus, Bacteria is not one of the kingdoms of living things. So, the correct option is (B).
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3 parts of a nucleotide are
Answer:
Nucleobase, Five-carbon sugar, phosphate group.
Base, sugar and group.
Explanation:
Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.
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The factor in the environment that does NOT depend on the number of members per unit area?
1) Predation
2) Competition
3) Pollution
PLEASE PLEASE
Do you have 5th grade
science for kids in Texas
Answer:
Yes, indeed they do.
Explanation:
I called my cousin in texas just to make sure this answer is correct. No problem.
Identify the criteria used to accept foods purchased for the following categories
Meat
Fish
Shellfish
Poultry
What chemical in the chloroplast captures sunlight for photosynthesis to take place?
Answer:
pigment chlorophyll
Explanation:
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If a DNA molecule with a total of 2500 nucleotides has 1500 purines, how many guanines are in this DNA molecule?
Answer:
I'm pretty sure there would be 1000 guanines in the DNA molecule.
Explanation:
Hope this helps. . . <3
If a DNA molecule with a total of 2500 nucleotides has 1500 purines, total number of guanines are in this DNA molecule is 1000 guanines in the DNA molecule.
What will be the total number of thymines if a DNA molecule has a total of 1500nucleotides?The DNA molecules would be given and it have 450 thymines if the DNA molecule has the total of 1500 nucleotides and the DNA molecule also have been known as the deoxyribonucleic acid has been made up of the double helix. The DNA molecule with the total of 1500 nucleotides would contain 750 cytosine and Thymines and 750 guanines and adenine.
Hence, we can have the expression:
C + T = 750
If there are 300 cytosines, hence;
300 + T = 750
T = 750 - 300
T = 450
A nucleotide has the monomer constituting DNA or RNA biopolymer molecules and the double-stranded DNA molecule posseses two strands of DNA made up of the nucleotides.
Therefore, If a DNA molecule with a total of 2500 nucleotides has 1500 purines, total number of guanines are in this DNA molecule is 1000 guanines in the DNA molecule.
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Nov 07 2021 |
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Question 1 of 12
Renal System - Practice - 7207
-
Release of ADH from the posterior pituitary gland is stimulated by
O increased blood volume
o increased osmotic pressure of plasma
O low osmotic pressure of interstitial fluid
O alcohol consumption
O All of the choices are correct
Answer:
o increased osmotic pressure of plasma
Where does hunger originate? A., B., C., or D.
Answer:
The answer is (C) In the hypothalamus
Explanation:
Within the hypothalamus are nerve cells that, when activated, produce the sensation of hunger.
Can someone help me, my paper is due tonight.
Describe solution concentration outside the cell in terms of hypotonic, hypertonic and isotonic.
Answer:
see below
Explanation:
Hypotonic solution is a very dilute solution to the more concentrated solution. Hypo means under . A solution with a lower concentration of solutes than the cytoplasm of a cell, that solution is hypotonic to the cytoplasm. The cell expands as water moves in.
Hypertonic solution is a more concentrated solution to cytoplasm. Hyper means above. A hypertonic solution has higher concentration of solutes than the cytoplasm of the cell. The cell shrinks as its cytoplasm loses water.
Isotonic solution is when two solutions of equal concentration are separated by a semi permeable. Iso means equal. Therefore, in isotonic solutions, water movement out of a cell balances the water movement into it. Cells in the body are usually surrounded by a fluid. The cytoplasm in the cell is usually isotonic to the fluid outside the cell. Hence, no net gain or loss of water by cells.
So, basically, if a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
When exercising routinely, timing the food that you eat around your exercise activities is important and has a significant impact on your energy levels. Carbohydrate intake, in particular, can affect performance, with simple carbohydrates and complex carbohydrates having different ideal times for consumption. The best types of carbohydrates to eat during and/or immediately after exercise are simple carbohydrates, whereas complex carbohydrates are ideally consumed a couple of hours before exercise. Complex carbohydrates take longer to digest and enter the bloodstream and can help build glycogen stores. Sort the following food items
a. Foods rich in simple carbohydrates.
b. Foods rich in complex carbohydrates.
c. Foods without carbohydrates
Answer:
(a.) Foods rich in simple carbs- Low fat smoothie and sport drinks with glucose
(b.) Foods rich in complex carbs- whole-wheat pancakes, whole-wheat spaggetti with marinara sauce and brown rice with vegetables
(c.) Food without carbs- grilled salmon and roasted chicken breast
Explanation:
Simple carbs are easy to digest and eaten before a workout, hence the sports drink and low-fat smoothie falls under that category, while complex carbohydrates are hard to digest...think anything with wheat.
Which organelle in a plant cell is most affected when a plant has not received any water? Explain your reasoning.
Explanation:
that's why hope it helps you
based on what factor do we choose the method of separation for different components of a mixture?
Answer:
Different components of a mixture have different properties on the basis of which we device the method that is used to separate it from other components of the mixture
-TheUnknownScientist 72
what do you call to those animals that eat both plants and animals ?
Answer:
omnivores eat both meat and plants
carnivores eat meat
herbivores eat plants
Whenever the translation molecule reads the codon UGA, what occurs
Answer: It begins when a stop codon (UAG, UAA, or UGA) enters the ribosome, triggering a series of events that separate the chain from its tRNA and allow it to drift out of the ribosome.
Explanation:
