Answer:
What are centrioles and centrosome?
Within the cell, a centrosome is a structure that organizes microtubules during cell division. Each centrosome contains “paired barrel-shaped organelles” called centrioles and a “cloud” of proteins referred to as the pericentriolar material, or PCM. They also enable movement of other organelles within the cytoplasm
Explanation:
Answer:
a centrosome is a structure that organizes microtubules during cell division. Each centrosome contains “paired barrel-shaped organelles” called centrioles and a “cloud” of proteins referred to as the pericentriolar material, or PCM.
Centrioles are made up of short lengths of microtubules “arranged around a central cavity.” Each centriole is around 500 nm long and 200 nm in diameter. The function of centrioles in animal cells is to organize the PCM to aid in microtubule formation.
Hope this helps!!!
13. Which muscle allows you to flex your big toe?
Answer:
Flexor hallucis longus
Explanation:
This muscle lies deep inside your leg. It runs down the lower leg all the way to the big toe. It helps you flex your big toe so that you can walk and hold yourself upright while on your tiptoes.
the electron transport chain consists of a series of membrane-bound carriers that shuttle protons and electrons to nadh. true or false?
Answer:
ture
Explanation:
The statement "the electron transport chain consists of a series of membrane-bound carriers that shuttle protons and electrons to NADH" is absolutely false.
What is the Electron transport chain?The electron transport chain may be defined as a sequence of four protein complexes that significantly perform a couple of redox reactions in order to construct an electrochemical gradient that directs to the formation of ATP in an overall system that is named as oxidative phosphorylation.
The electron transport chain typically includes the series of electron transporters that are generally embedded in the inner membrane of mitochondria in order to shuttle down the electrons only from NADH and FADH2 to molecular oxygen.
While the given statement reveals that electrons and protons both shuttle to NADH but FADH2 is also involved.
Therefore, the statement which is given about the electron transport chain is definitely false.
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Carbon, Hydrogen, and Chlorine atoms combine chemically. What best describes this
combination that is the result?
Atom
Compound
Element
Consideting the definition of compound, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
A compound is any substance formed by the union of two or more types of chemical elements, linked together by chemical bonds.
In other words, A chemical compound is the substance that results from the combination of two or more different chemical elements linked under a certain arrangement and in certain proportions.
Each compound has a chemical name (which responds to certain nomenclature rules) and a formula that indicates the elements it is composed of and the number of atoms each contains.
Then, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
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https://brainly.com/question/6242391?referrer=searchResultshttps://brainly.com/question/14782984?referrer=searchResultswhich type of biomolecule is a prominent part of animal tissue that functions in insulation to help animals conserve heat?
Answer:
Protein
Explanation:
protein is one of the 4 biomolecules that involve animal tissue functioning to help animals conserve the heat.
what is the primary pigment that makes leaves green in land plants?
Chlorophyll is the primary pigment that makes leaves green in land plants, by absorbing red and blue light.
What is chlorophyll?It is a pigment present in the plant leaves, through which plant leaves apers green in observation, it plays several roles in the plants other than the green appearance of the leaves.
During photosynthesis, this chlorophyll pigment is responsible to form reaction center through which light is absorbed and leads to a process through which light converts into chemical energy for the synthesis of food.
It is present in the chloroplast, which is the site of photosynthesis, and provides the necessary components for plant food synthesis.
Therefore, the primary pigment that makes leaves green in land plants is known as chlorophyll.
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which is a flap of tissue that folds down to close off the entrance to the larynx and trachea when you swallow?
Organize these rock layer from youngest to oldest
Breccia
Conglomerate
Dolostone
Shale
From youngest to oldest are Breccia, Conglomerate, Dolostone, and Shale, and as per geology, the principle of superposition states that in a sequence of layered rocks, the youngest layer is on top and the oldest layer is at the bottom.
What are rock layers?Breccia is the youngest layer in the sequence. Breccia is a coarse-grained sedimentary rock made up of angular fragments of other rocks that have been cemented together. It is formed through a process called brecciation. Conglomerate is also a coarse-grained sedimentary rock, but unlike breccia, its fragments are rounded and well-worn, indicating that they have been transported over a distance by water or wind before being deposited and cemented, and dolostone is older than both breccia and conglomerate. Shale is the oldest layer in the sequence.
Hence, From youngest to oldest are Breccia, Conglomerate, Dolostone, and Shale.
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Please help! Its for a grade and im confused.
From point W to point Z, the ball is B- Potential energy was transformed to kinetic energy. We know this because, at point W, the ball is in its potential form, it has the potential to roll but it has not yet started to. As we let the ball go, we turn that potential energy into kinetic energy, which is the energy that it has due to its motion.
I hope I've helped! :)
What does R represent?
Answer:
resistance
Explanation:
in the equation
voltag= current* resistance
Answer:
R = resistance
Explanation:
what is the role of the enzyme aromatase in sexual differentiation in reptiles?
Answer:
Aromatase helps to convert sex steroids, a group of hormones that influence sex development and reproduction, from male sex hormones (androgens) to female sex hormones (estrogens)
Explanation:
hope it helps you
the chemiosmotic hypothesis states that the energy for the production of atp during photosynthesis comes from
The chemiosmotic hypothesis states that the energy for the production of ATP during photosynthesis comes from the Mitochondria.
The mitochondria is regarded as very important and the power(energy) house of the cell as a lot of ATP synthesis activities takes place in this organelle.
The hypothesis was used to prove that most of the ATP production that takes place in respiring cells comes from the electrochemical gradient present across the inner membranes of mitochondria.
ATP is formed from the break down of the molecules rich in energy such as glucose and the use of energy of NADH and FADH₂ which are formed from its breakdown.
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Why might (mostly) boneless creatures, like jellyfish, sea slugs, squid, and octopuses, fare especially well underwater? What is it about the physics of being underwater that would allow relatively large, sometimes highly mobile creatures to flourish that isn’t true for boneless land creatures?
Answer:
hmm well id say because it helps them move better underwater than on land because they swim diffrently than humans
Explanation:
mrna is synthesized in translation or transcription
Answer:
transcription
Explanation:
mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. The process of making mRNA from DNA is called transcription.
Using the following nucleotide sequence, predict the complementary strand sequence:
5′-TTAAACCCGTTGGAAC-3′
A. 3′-TTAAACCCGTTGGAAC-5′
B. 3′-AATTTGGGCAACCTTG-5′
C. 3′-CCGGGTTTACCAAGGT-5′
D. 5′-AATTTGGGCAACCTTG-3′
Answer:
The answer is D i think :)
Answer:
3′-AATTTGGGCAACCTTG-5′
Explanation
I just took the quiz and I got it right.
When is the gravity exerted on Earth by the Sun and Moon system the greatest? Why do you say this?
Answer:
When the Moon is positioned between the Sun and the Earth.
Explanation:
This is because you add both the gravitational pull of the Moon, with the gravitational pull of the sun.
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
Answer:
B
Explanation:
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
ANSWER:O A) allow predation to occur
O A) allow predation to occurO B) rid waste and dead matter
O C) provide food for autotrophs.
O D) facilitate photosynthesis in plants
__________________CARRY ON LEARNING
CAN YOU BRAINLEST ME PLEASE
Q.1. Which of the following statements is false?
a) The particles in a solid are packed tightly together and can only vibrate in place.
b) Liquid particles are moving more slowly than gas particles.
c) Particles in the gas are much farther apart than particles in liquid or solid.
d) The particles in a solid have more energy than the particles in a liquid.
identify the region of the sphenoid bone in contact with the pituitary gland.
Answer:
The sella turcica is a depression in the central region of the sphenoid bone. It houses the pituitary gland.
How does cellular differentiation benefit complex organisms?
Answer:
This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness of cells.
Explanation:
Answer:
Cellular differentiation is beneficial and important for complex organisms.
Explanation:
Cellular differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells.
Convert 10 cm to meters and express the answer to the correct number of significant digits.
A) 0.10 m
B) 0.1 m
C) 100 m
D) 1 m
Answer:
B. 0.1
Explanation:
Trust me
Answer:
(b) 0.1 m
Explanation:
edge 2022
discribe the processes of transcriotion and translation
Explanation:
Basic Biology
BASIC BIOLOGY
Inspired by life
TRANSCRIPTION AND TRANSLATION
Genes provide information for building proteins. They don’t however directly create proteins. The production of proteins is completed through two processes: transcription and translation.
Transcription and translation take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA.
The RNA molecule is the link between DNA and the production of proteins. During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines.
DNA → RNA → Protein
DNA and RNA are similar molecules and are both built from smaller molecules called nucleotides. Proteins are made from a sequence of amino acids rather than nucleotides. Transcription and translation are the two processes that convert a sequence of nucleotides from DNA into a sequence of amino acids to build the desired protein.
These two processes are essential for life. They are found in all organisms – eukaryotic and prokaryotic. Converting genetic information into proteins has kept life in existence for billions of years.
DNA and RNA
RNA and DNA are very similar molecules. They are both nucleic acids (one of the four molecules of life), they are both built on a foundation of nucleotides and they both contain four nitrogenous bases that pair up.
A strand of DNA contains a chain of connecting nucleotides. Each nucleotide contains a sugar, and a nitrogenous base and a phosphate group. There is a total of four different nitrogenous bases in DNA: adenine (A), thymine (T), guanine (G), and cytosine (C).
A strand of DNA is almost always found bonded to another strand of DNA in a double helix. Two strands of DNA are bonded together by their nitrogenous bases. The bases form what are called ‘base pairs’ where adenine and thymine bond together and guanine and cytosine bond together.
Adenine and thymine are complementary bases and do not bond with the guanine and cytosine. Guanine and cytosine only bond with each other and not adenine or thymine.
There are a couple of key differences between the structure of DNA and RNA molecules. They contain different sugars. DNA has a deoxyribose sugar while RNA has a ribose sugar.
What is created by the flow of electric current?
A battery
An electric field
A magnetic field
A resistor
A magnetic field is created by the flow of an electric current.
Fill in the Blank
15. Describe the structure of a lipid. It has a ____. head and a ____ tail
20. The specific molecule that an enzyme interacts with is called the_____ please help meeee
Answer:
1.Phospholipids
2.
enzymes
do you think there is a quantitative relationship between transpiration rate and number or size of leaves on the stem? explain your answer.
Answer:
Do you think there is a quantitative relationship between transpiration rate and number or size of leaves on the stem? Explain your answer. Yes, the more leaves a plant has, means more stomata will be available for transpiration. ... Without light to facilitate photosynthesis, most plants close their stomata at night.
Explanation:
pls help 4-7 35 point
Answer:
sorry i havent learn about this yet
Anthocyanin are an alternative type of chlorophyll that some plants will produce depending on season or their general location. Based on the graph below, if I were to see a plant making strictly anthocyanin what color would it be?
Blue
Yellow
Purple
Red
Green
Explain the relationship between these terms photosynthesis chlorophyll thylakoids chloroplasts
Answer:
In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. GA3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. GA3P and oxygen are products
Answer:
Photosynthesis occurs in the chloroplasts.
Chloroplasts capture light energy.
Thylakoids can be found inside chloroplasts, where light-dependent reactions occur.
Chlorophyll is found in the thylakoids.
Chlorophyll absorbs light energy.
Chlorophyll is what makes plants look green.
Parent gives one sex chromosome to their offspring. Whose chromosome determines the sex of the child.
Father
Mother
Grandfather
Grandmother
Does quartzite occur naturally
Interpreto la imagen: 1. ¿Qué sensaciones te transmite la
fotografía? 2. ¿en dónde se encuentra el fósil del ser vivo
que se observa en la fotografía? 3. ¿A qué reino de la
naturaleza pertenecía el ser vivo de la fotografía? ¿Por qué?
4. ¿Cómo explicarías a una persona que es la evolución a
partir de esta fotografía? 5. La fotografía muestra un fósil
de cocodrilo de la especie C.Robustus, evidencia
paleontológica que demuestra la existencia de estos
animales desde el triásico y el jurásico en el planeta tierra.
¿Por qué crees que, a una institución como el laboratorio
de Ciencias de la Tierra de Lyon, en Francia, le puede
interesar estudiar un espécimen como este?.
Answer:
what image
Explanation: