Answer:
Nucleic Acids
Store and transmit genetic information
DNA and RNA
Explanation:
Why does neurones contain many mitochondria and many ribosomes?
Answer:
Neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body (Attwell and Laughlin, 2001). ... Every part of the neuron requires ATP and therefore requires mitochondria to be present.The dendritic processes and spines of neurons are essentially expansions of cytoplasm containing most of the organelles found in the cell body. ... Rough endoplasmic reticulum and ribosomes are present in large but not small dendrites.
The neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
What are neurons?The neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
Every part of the neuron requires ATP and therefore requires mitochondria to be present.The dendritic processes and spines of neurons are essentially expansions of cytoplasm containing most of the organelles found in the cell body. Rough endoplasmic reticulum and ribosomes are present in large but not small dendrites.
The outermost part of brain has been known as Dura mater which has been consist of a strong membrane layering and it has been thick located just beneath the skull and vertebral column.
Therefore, the neurones contain many mitochondria and many ribosomes as neurons depend on mitochondria. ATP generation by mitochondrial respiration in the brain consumes 20% of the body's oxygen although the brain is only 2% of the mass of the body.
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Which s an example of why the process of photosynthesis is important to life on Earth?
Explanation:
Thanks to photosynthesis, us and many other animals can have oxygen! That's because when plants photosynthesize, they take in carbon dioxide, and the waste is oxygen, which a lot of things need to survive.
What has very thin walls to allow the nutrients and gasses to be exchanged between the blood and cells?
ОООО
Arterioles
Venules
Veins
Capillaries
Answer:
Arterioles
Explanation:
Arterioles are considered as the primary resistance vessels as they distribute blood flow into capillary beds. Arterioles provide approximately 80% of the total resistance to blood flow through the body.
Give an example of a 1) solid, 2) liquid and 3 gas.
1) Rock
2.) Acid
3.) Helium
I hope this is what you wanted
1. Brick
2. Water
3. Lava
List the features of the gaseous exchange surface in humans.
Answer:
they give the lungs a really big surface area.
they have moist, thin walls (just one cell thick)
they have a lot of tiny blood vessels called capillaries.
Hopes this helps :D
in what situation can a harmful deletion in a chromosome persist in a population?
Answer:
If the homologous chromosome lacks the deletionquestions.
Questions
1 a Name the microorganism which causes the disease smallpox.
Answer: Variola Virus
Explanation:
4. Which statement best expresses a basic scientific
assumption?
A Interpretation of experimental results has
provided explanations for all natural phenomena.
B) Ifa conclusion is valid, similar investigations by
other scientists should result in the same
conclusion.
C) For any conclusion to be valid, the design of the
experiment requires that only two groups be
compared
D) After a scientist formulates a conclusion based
on an experiment, no further investigation is
necessary
3
Answer:
Choose B) B) If conclusion is valid, similar investigations by
other scientists should result in the same
conclusion.
Explanation:
Describe how the structure of an atom determines it's function. How is the structure of
an atom related to the properties A displays when bonding or reacting with other
atomslelements. Provide a simple example,
Answer:
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain electrons (negatively charged).
Explanation:
Hope This Helps!
8. I contain pigments to capture light energy.
O Chloroplast
O Mitochondria
O I Both chloroplasts and mitochondria
Answer:
a/1 chloroplast
Explanation:
chloroplasts hold green pigment
How do muscle cells access what they need to keep producing energy
Muscle cells access what they need to continue producing energy through chemical energy from ATP to transform it into mechanical energy.
Muscle cells are elongated cells whose length can reach several centimeters.
The muscle uses ATP (energy) to carry out conformational changes in its molecular structure => variation in the length of the sarcomere.
Adenosine triphosphate (ATP) is the basic source of energy for muscle contraction.
Each link stores 7300 calories of energy per mole of ATP under normal conditions and when a phosphate radical is separated from the molecule, these calories are available providing the energy necessary for muscle contraction.
The muscle cell has three mechanisms to resynthesize ATP:
ATP synthesis through phosphocreatine.
Anaerobic glycolysis process with the transformation of muscle glycogen into lactate.
From oxidative phosphorylation.
ATP synthesis through phosphocreatine consists of the transfer of energy from phosphocreatine to ADP so that it can reincorporate a phosphate group to its molecule and transform it into ATP.
So the energy that has been released in the hydrolysis of PCr is directly used to resynthesize ATP from ADP.
Therefore, we can conclude that muscle cells access what they need to continue producing energy through the chemical energy of ATP to transform it into mechanical energy.
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Cell walls are only found in animal cells.
Answer:
False
Explanation:
Animal cells do not have a cell wall
Answer:
i think so yes beacuse i remember it that i read in in science
cuál es la fuente de conocimiento de la astrología? la observación de la naturaleza? los libros?
Answer: c
Explanation: trust
testosterone, a lipid-soluble signaling molecule, crosses the membranes of cells throughout the body but affects only target cells because __________.
Answer:
of intracellular receptors
Explanation:
this should be correct
What is the best definition of excretion?
The elimination of undigested food.
Crying
The process of eliminating metabolic wastes.
Drooling
C) The process of eliminating metabolic wastes
when storing fruits and vegetables in her apartment, what steps can julie take to minimize nutrient losses? check all that apply.
Nutrient loss is the reduction or elimination of the nutrients in food. Nutrients are very important in the development of cells in the body and also giving energy and vitality to the bones.
Please note that your question is incomplete, so i am giving you a general overview.
Some of the factors that leads to nutrient loss in food includes:
Overcooking (exposure to high level of heat)FreezingDrying, etc.Therefore, to minimise nutrient loss, it is vital that food is well preserved and is finished immediately, to reduce or totally eliminate the need to freeze, overcook or reheat food.
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In spring, sugar solution rises quickly up through the phloem in plant stems . Give a reason for this
Answer:
Because phloem transports minerals and other solute. particles from lower parts to the stem in bidirectional manner. That is why in spring sugar solution rises quickly through phloem in plant stem
1. describe the stages of the cell cycle
2. use a model to illustrate the role of cellular division in the formation of new cells
3. describe the structure of a chromosome
4. follow chromosomes through the processes of mitosis and cytokinesis
Answer:
1.The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells.
2. In the Picture Linked.
3. Chromosome help ensure that DNA is replicated and distributed appropriately during cell division. Each chromosome has a centromere, which divides the chromosome into two sections – the p (short) arm and the q (long) arm.
4. Mitosis occurs at the sites of growth and development of new tissues. Here are the stage of mitosis Below:
Prophase
This is the initial phase. The chromosomes in the nucleus become visible as thin coiled threads. In animals, the centrosome found in the cytoplasm divides to form two centrioles. The chromosomes become tightly coiled and shorter. From each centriole, fine fibers develop and elongate to form spindle apparatus. The nucleolus becomes dispersed in the nucleus and disappears. The nuclear membrane also break and disappears.
Metaphase
The pairs of chromatids align along the equator of the spindle apparatus and are attached to it at their centromeres.
Anaphase
The centromere of each chromosome splits and the chromatids separate. Each chromatid moves to the opposite poles of the cell. The chromatids appear as V--shaped.
Telophase
The spindle fibers disintegrate and disappear. New nuclear membrane forma around each set of chromatids. A nucleolus develops in the nucleus of each daughter cell. The cytoplasm now divides in a process called cytokinesis. In animals, an invagination develops at the plasmalemma near the equator of the cell.
Relationship between mitosis and cytokinesis:
Mitosis is the division of a nucleus. Cytokinesis is the division of the cytoplasm. If mitosis occurred without cytokinesis, the cell would contain two nuclei and twice the DNA. If cytokinesis occurred without mitosis , one of the new cells would lack DNA and a nucleus altogether.
15 POINTS!!!! At a molecular level, does plasma have more or less energy than other states of matter?
Answer: Hello!
Plasma is more energetic than other states of matter.
Explaination:
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Which fact from "Solar Conjunction: When the Sun Gets in the Way" would be LEAST important to include in a summary of the blog post?
- The Solar Conjunction period starts around April 4, 2013, and lasts until May 1, 2013.
- During this time, science observations are suspended.
- Without accurate measurements, the Mars Reconnaissance spacecraft cannot perform precise targeted science observations.
✅One Mars year is about 1.9 Earth years.
Answer: One Mars year is about 1.9 Earth years
Explanation: One Mars year will take around 687 Earth days.
Answer:
d
Explanation:
got it right on the test
identify the small facial bones found in the medial wall of the orbit.
Answer:
Lacrimal
Explanation:
help help help help help
Answer:
D. There is a warm front coming from the south.
Identify one
food chain in
this food
web.
Answer:
Duckweed, Duck, Fox
Explanation:
Any combination that starts with a producer and ends in a consumer in order of consumption.
Other examples are :
Algae, water snail, duck, fox
What is the most venomous snake in the world? Please help ASAP! Help would be appreciated. I will give Brainliest!
Note: it's my homework! :)
The most venomous snake in the world is Inland Taipan.
Answer: Oxyuranus microlepidotus, also called the fierce snake
Explanation: The snake with the most deadly venom.
NOT MY WORK I FOUND IT ON https://www.britannica.com/list/9-of-the-worlds-deadliest-snakes
where are muscle cells found?
are short explanation please.
Muscle cells are found on the wall of the heart and blood vessels, visceral organs and remains attached to bone of the skeleton by tendons.
Cereal crops - eg simple question free
Answer:
Important cereals are wheat, rice, maize, oat, barley, rye, millet and sorghum.
Answer:
Explanation:
some cereals are wheat, rice, maize, oat, barley, rye, millet and sorghum.
nombre de el tejido conjuntivo que se encarga de recibir el oxígeno
English mo Po Kase Hindi ko maintindihan
Hair samples can provide information on all of the following EXCEPT.....
a
Age
b
Gender (sex)
c
Race
d
Hair samples can provide information on all of these.
Answer:
the answer should be A) Age
What are things that sound waves can travel through?
Answer:
Sound waves are longitudinal waves. They need a medium to travel through. They cause particles of the medium to vibrate parallel to the direction of wave travel. The vibrations can travel through Solids, Liquids or Gases.
Explanation:
Hope it helps
A closed system:
A. exchanges matter
and energy with other
systems.
B. exchanges
information and energy
with other systems.
C. is the most common
type in nature.
D. exchanges no matter
with other systems.
Answer:
D. exchanges no matter with other systems.
Explanation:
When you think of closed, think of something like a closed circuit. Nothing is effecting it from the outside and is not that common in nature. Most biological organisms are open systems such as us humans.