How is the Nucleus like a brain?
Answer:
The nucleus contains the DNA of the cell which can be thought of as the brain of the cell.
The nucleus responds to stimuli via receptors which can be primary or secondary. Basically, an external ligand (hormone, protein, nutrient, etc) binds to the surface receptor of a cell, this, in turn, causes the receptor to release a messenger (most of the time circular AMP (cAMP)) which binds to a secondary receptor which is either directly inside the nucleus or on the nuclear envelope. Finally. the portion of the DNA which is responsible for the protein to respond to the ligand is activated and begins transcription.
The activated DNA section (gene) produces mRNA which in turn produces a protein in response to the ligand.
On top of this, the entire cell cycle of rest, growth, and division is controlled by the nucleus.
Which of the following would require an input of energy? Question 5 options: a) diffusion b) filtration c) osmosis d) vesicular transport
Answer:
Which of the following would require an input of energy? Question 5 options: a) diffusion b) filtration c) osmosis d) vesicular transport
Explanation:
vesicular transport
Vesicular transport is the process that would require an input of energy.
Vesicle-mediated transport is the transport process that involves vesicles or vacuoles that form from or fuse with the cell membrane.
Transport vesicles interact indirectly with microtubules through proteins that have the ability to move and are known as dyneins and kinesins. These proteins transform the energy of ATP into movement in a certain direction.
The transport vesicles use microtubules to travel directly and quickly to their destination.
It can be done in two parts:
• Exocytosis: when a vesicle reaches the cell surface, its membrane fuses with the cytoplasmic membrane and expels its contents to the outside.
• Endocytosis: the material that will be incorporated into the cell induces an invagination of the membrane, producing a vesicle that encloses the substance.
Therefore, we can conclude that vesicular transport is the process that would require energy which is obtained from the transformation of ATP.
Learn more about vesicular transport here: https://brainly.com/question/23901212
What is the rule for making a atom positive/+ion?
Answer:
Ions are formed when the number of protons in an atom does not equal the number of electrons. If more protons are present, the ion is positive and is known as a cation; if more electrons are present, the ion is negative and referred to as an anion.
Explanation:
giving brainlist to the correct answer !!
______________________
Scientific laws can be thought of as general descriptions of what we see happening around us.
true or false?
Answer is TRUE
Scientific laws can be thought of as general descriptions of what we see happening around us.
10. Name the type of tissues present in the following structures.
a. Hair follicles and nails
Answer:
Keratinocytes
Explanation:
Keratinocytes (ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.
Removing groundwater for drinking water will stop the water cycle.
True
False
False, removing groundwater for drinking water will not stop the water cycle.
Groundwater, in essence means water present and existing beneath the rock surface. They are stored in the tiny pores of the rock below the earth surface.
Groundwater are the sources of fresh water resources.Rock are drilled with machine to get access to the groundwater.Groundwater are naturally replenished through precipitation, from rivers, lakes and other water bodies.In conclusion, Groundwater form part of the water cycle because after the use of water, its eventually evaporates to the cloud and discharges back into the ground through the rain, rivers, lakes etc.
Learn more about this here
brainly.com/question/22284351
with the help of a simple sketch ., describe a typical meristematic cell.
Answer:
Meristematic tissue has a number of defining features, including small cells, thin cell walls, large cell nuclei, absent or small vacuoles, and no intercellular spaces. The apical meristem (the growing tip) functions to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.
Explanation:
I'm not sure but hope it helps.
Match the following definitions to their correct terms.
1. any chemical compound that contains carbon
organic
2. a liquid that acts to dissolve or suspend substances
solute
3. a chemical compound that doesn't contain carbon
inorganic
4. a substance that is dissolved in a liquid
solvent
Explanation:
1.Organic compounds
2.the solvent
3.An inorganic compound
4.the solute
The dental assistant is taking the vital signs of a 62 year-old woman who has severe toothache, Her temperature using the digital thermometer is 101 F. Her blood pressure is 100mm Hg systolic over 70 mm Hg diastolic.Her pulse reading is 75 beats per minute. Which vital signs taken by the dental assistant are not within the normal range? What is the likely cause of the abnormal reading? What characteristic of a digital thermometer should the assistant keep in mind when using it ? How should the dental assistant respond to this information about the patients vital signs?
The normal temperature range is from 97 F to 99 F in adults. Any value obtained which is above 100F is considered as abnormal.
2. The likely cause of the abnormal reading is fever
The symptoms of the severe toothache includes the following:
fever (above 100F) and headachesever pains when pressure is applied to the tooth.swelling of gum surrounding the affected tooth.3. The characteristics the assistance needs to keep in mind while using the digital thermometer is the timing of the thermometer. Digital thermometer reading is taken after 40 seconds of insertion. this is not so with the normal mercury thermometer.
4. The dental assistance needs to notify the dental doctor concerning the abnormal temperature of the old woman. this will help in further diagnosis to be carried out towards the treatment of the severe toothache.
learn more here:
https://brainly.com/question/23648234
Desarrollo de los Depósitos ricos en carbono?
Answer:
yes
Explanation:
Which of the following statements about eukaryotic RNA is true?
O -A small cap of extra nucleotides is added to both ends of the RNA.
O -The modified RNA molecule is transported into the nucleus.
-Exons are spliced together.
-Introns are not transcribed from DNA to RNA.
Answer:
A small cap of extra nucleotides is added to both ends of the RNA
Hope you like it
Thank you ❤️
The statement 'exons are spliced together' is TRUE. The exons are the coding regions of genes.
RNA splicing is a eukaryotic mechanism by which non-coding sequences of genes called 'introns' are removed from the precursor messenger RNA (pre-mRNA), whereas protein-coding sequences called 'exons' are spliced together.These gene coding sequences (exons) are spliced together by a macromolecular complex known as the spliceosome.In consequence, a pre-mRNA is converted into a mature mRNA, which is subsequently used for protein synthesis.In conclusion, the statement 'exons are spliced together' is TRUE.
Learn more in:
https://brainly.com/question/9076330
What does a molecule have?
Explanation: a molecule has 2 or more atoms bonded chemically by various methods like ion and covalency
Cells that move around as the formless Protista amoebas do are called what?
Answer:
protists
Explanation:
what were necessary for a person to be happy and healthy?
What could happen to a person to make him ill? What
could be done to cure him?
Answer:
A person needs to have a quality and stress-free life to be happy and healthy.
A person will be ill if he/she is physically and mentally ill.
A person should be physically, mentally, and socially fit and fine to be cure.
_________ feed on dead matter, causing it to decay while ________ feed on already decaying matter.
A. Decomposers, Consumers
B. Saprobes, Detritivores
C. Producers, Consumers
D. Detritivores, Consume
Answer:
Decomposers, Consumers
Explanation:
Answer:
B) Saprobes, Detritivores
Explanation:
Saprobes derive their nourishment from nonliving or decaying organic matter.
Detritivores feed on dead, organic material and play an important role in the breakdown of organic matter from decomposing animals and plants.
Describe briefly two level of cell organization in living arganism giving an example of each type
Answer:
cell,tissue,organ system
Explanation:
a cell is the smallest and functional unit of a loving organism which can carry out all life process.a cell may be unicellular multicellular
tissue: is a group of similar cell which perform the same function e.g sclerenchyma and parenchyma in plants
Each molecule of ammonia (NH3) is made up of one nitrogen atom and three hydrogen atoms. Which term best describes ammonia?
A. heterogeneous mixture
B. element
C. homogeneous mixture
D. compound
Answer:
D.compound
Explanation:
Ammonia is a compound
Each molecule of ammonia (NH3) is made up of one nitrogen atom and three hydrogen atoms. the term best describes ammonia is- option D. compound
Ammonia is an inorganic compound made up of a single nitrogen atom covalently bonded to three hydrogen atoms.
Ammonia gas can be dissolved in water and is called aqueous ammonia.household liquid ammonia is a hmogenous mixture but not natural ammonia gas, it is an inorganic compound.there is a covalent bond present between hydrogen and nitrogen atoms.Thus, the correct answer is - D. compound
Learn more about ammonia:
https://brainly.com/question/10265309
giving brainlist to the correct answer !!
______________________
models can represent things that are too far away or to small to see
true or false?
Answer:
True
Explanation:
plsss helpppppppppppppppppp
Answer:
100cm^3
Explanation:
ml=cm^3 so 100 cm^3
What enzyme breaks down starch in your saliva?
pepsin
trypsin
lipase
amylase
Answer:
D
Explanation:
It is the amylase, or rather alpha-amylase
Living things also display ? Which means they are arranged in an orderly way
Answer:
yes this is true. they should be placed in a neat and tidy order so it is easy to find them when needed
Explanation:
a- Los organismos quimio autótrofos realizan la fotosíntesis. ( )
b- Las sustancias nutritivas ingresan a la célula por el citoplasma. ( )
c- La nutrición es el conjunto de reacciones químicas que ocurren en el citoplasma
celular. ( )
d- La excreción es una etapa de la fotosíntesis. ( )
e- Todos los organismos realizan la función de nutrición. La respiración hace parte del
proceso de nutrición. ( )
f- Durante el proceso de nutrición hay eliminación de desechos tóxicos. ( )
Answer:
Konica Minolta
upgrah ko kxa
ksh barkha singh
onichan baka bi
Compared to developing nations, developed nations have
a. lower health standards
b.greater wealth.
c. faster-growing populations.
d. less social services.
Answer:
b greater wealth is the correct option.
liguid which do notwet the glass surface from a cinvex meniscus true or false
Answer:
True
Explanation:
Mercury does not wet glass - the cohesive forces within the drops are stronger than the adhesive forces between the drops and glass.
the foot is ___ to the nose
Answer:
below
Explanation:
what are the options?
Modern inventions and discoveries:
A.support Scripture and creation
B. support the idea of evolution
C. do not relate to Scripture
D. falsify Scripture
Answer:
B
Explanation:
what is the primary job of golgi tendon organ? is it sense of pain or protect against injury
Answer:
When people lift weights, the golgi tendon organ is the sense organ that tells how much tension the muscle is exerting. If there is too much muscle tension the golgi tendon organ will inhibit the muscle from creating any force (via a reflex arc), thus protecting the you from injuring itself.
Answer: protect against injury
The Golgi tendon organ is a proprioceptive sensory receptor organ that senses changes in muscle tension. If there is too much muscle tension the organ will inhibit the muscle from creating any force, thus protecting itself from injuring.
Many people are proponents of using nuclear power instead of burning coal to generate electricity what is an environmental disadvantage of using nuclear power
Answer:
sdakhBmkhjsbaK>HJB
Explanation:
sakjZBCK.jh
What is cell ? What are the functions of cell ?
Answer:
in biology, the smallest unit that can live on its own. and that makes up all living organisms and tissues of the body . a cell has three main parts ; the cell membranes , the nucleus, and the cytoplasm.
Explanation:
functions of cell are :
they provide structure for the body, take in nutrients from food, convert those nutrients into energy and carry out specialized functions. cells also contain the body's heredtary matera amd can make copies of themselves. cell have many parts each with different function.
A cross between two heterozygous organisms results in a phenotypic ratio of:
1:1:1:1
4:0
1:3
1:2:1
Answer:
3
Explanation:
the answer is 1:3