If an organelle is selectively
permeable what can we infer
about its function?
MULTIPLE CHOICE
Answers
Answer:
What can be inferred about the function of a selectively permeable organelle is that organelle allows some molecules to pass trough (option C).
Explanation:
Selective permeability is a characteristic, present in the membranes, which allows the passage of some substances and prevents the passage of others, according to their structure.
An example of selective permeability is found in cell membranes, whose hydrophobic nature allows the passage of apolar molecules easily, limiting or preventing the passage of polar molecules and ions.
The other options are not correct because:
A. Not all molecules can pass through a semi-permeable organelle.
B. The semipermeable organelle does not prevent the passage of any substance.
C. Semi-permeable organelle does not allow the passage of large molecules easily.
Related Questions
Mitosis results in two identical daughter cells, whereas meiosis results in
four sex cells. *
3 points
True
False
Answers
Answer:
true!!
Explanation:
Describe what interesting fact about continental tropical air masses.
Answers
Answer:
Continental Tropical (cT): Hot and very dry. They usually form over the Desert Southwest and northern Mexico during summer. They can bring record heat to the Plains and the Mississippi Valley during summer, but they usually do not make it to the East and the Southeast.
Explanation:
Continental Tropical air masses (cT) are a type of tropical air produced by the subtropical ridge over large areas of land and typically originate from low-latitude deserts such as the Sahara Desert in northern Africa, which is the major source of these air masses. ... Arctic, Antarctic, and polar air masses are cold.
Which type of Punnett square is four by four or includes 16
squares?
Answers
Answer:
dihybrid cross
Explanation:
For a monohybrid cross, individual alleles are used, whereas for a dihybrid cross, pairs of alleles are used. A Punnett square for a monohybrid cross is divided into four squares, whereas a Punnett square for a dihybrid cross is divided into 16 squares
Answer:
The Dihybrid cross includes 16 squares for a type of Punnett square.
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How did Robert Hooke come up with the term "cell"?
Answers
Answer:
the boxlike cells of cork reminded him of the cells of a monastery
How would you finish the last sentence? What would you say to Sherman so he understands that velocity and force are different? Write a response and be prepared to share it with a partner.
Answers
Answer:
Velocity is a speed while force is a push or pull.
Explanation:
Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.
Answer:
Velocity is a speed while force is a push or pull.
Explanation:
Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.
Explanation:
Create a series of yes/no questions that will help someone looking only at the DNA to determine if a cell is eukaryotic or prokaryotic. Your key must have three questions and must come to a definite conclusion (specifically, "the cell is eukaryotic" and "the cell is prokaryotic"). Drag each question to its correct location.
Answers
Answer and Explanation:
1- Is the DNA surrounded and protected by a membrane?
a- yes---------4
b- no----------2
2- Is the DNI in contact with the cytoplasm?
c- yes--------3
d- no--------4
3- Is the DNA a unique circular rolled chromosome?
e- yes------6
f- no--------4
4- Is the DNA chain fragmented into many chromosomes?
g- yes-------5
h- no--------6
5- Is the DNA associated with histone proteins forming the chromatin?
i- yes------------------------------------------------> "the cell is eukaryotic"
j- no--------------------------------------------------> 6
6- Is the DNA associated with non-histone proteins forming a nucleoid?
k- yes-------------------------------------------------> "the cell is prokaryotic"
Please help!! WILL GIVE BRAINLIEST!!!! This test will get my grade to atleast passing tysm if you help!! :) Also this is science but they didnt have that.
Answers
Answer:
The air pressure decreases over time the higher you get
Answer:
3. C
4. B
5. B
6. C
7. A
Can you please mark Brainliest since I helped Please?
When Joe saw the Rocky Mountains for the first time, he exclaimed, "These mountains are much younger than ours back East!" Explain which feature supports his conclusion that the Rockies were relatively young mountains
Answers
Answer:
Green forested regions and its beautiful scenery.
Explanation:
Feature like green forested regions and its beautiful scenery supports his conclusion that the Rockies were relatively young mountains than black East. These features shows Rocky Mountains more younger because everything is beautiful in younger age and due to its beautiful scenery we can conclude that the Rocky Mountains are younger and the black east are older mountains due to its less beauty.
How does change to an ecosystem that results in succession benefit the ecosystem? a. it leads to an increased level of biodiversity b. it leads to decreased productivity c. it ends symbiosis between organisms d. it allows ecosystems to operate independently of each other
Answers
Answer:
a. it leads to an increased level of biodiversity
Hope this helped :)
Answer:
A
Explanation:
Biotechnology is the combination of ________________ and _____________________ It has been making many products better for many years, including ______________________________________ As scientists cracked the genetic ____________, they began to incorporate biotechnology into the branch of _______________________ Cloning: The process of producing _________________________ _____________________ offspring from the ___________ cells of the parent organism Also called: _________________________________ _____ First cloned organism was ____________ the sheep in 1997 in Scotland Since then other animals such as pigs, deer, horses, and bulls, but never humans Steps of Cloning a Sheep: 1. 2. 3. 4. 5. 6. 7.
Answers
Answer:
Biotechnology is the combination of biological sciences and engineering technology. It has been making many products better for many years, including living organisms. As scientists cracked the genetic code, they began to incorporate biotechnology into the branch of genetics.
Cloning: The process of producing identical offspring from the somatic cells of the parent organism also called, a clone. First cloned organism was Dolly the sheep in 1997 in Scotland Since then other animals such as pigs, deer, horses, and bulls, but never humans
Steps of Cloning a Sheep:
1. Extraction of diploid nucleus from a body cell
2. Enucleation - which removing the nucleus from an egg cell
3. Insertion of the diploid nucleus into the enucleated egg cell
4. Stimulation by an electric shock of the diploid nucleus to mitotically divide
5. Culturing of the cell to ensure development into a blastocyst
6. Implantation in a surrogate mother
7. Birth
Note: No options were provided for the spaces.
Explanation:
Biotechnology is the combination of biological sciences and engineering technology. It has been making many products better for many years, including living organisms. As scientists cracked the genetic code, they began to incorporate biotechnology into the branch of genetics.
Cloning: The process of producing identical offspring from the somatic cells of the parent organism also called, a clone. First cloned organism was Dolly the sheep in 1997 in Scotland Since then other animals such as pigs, deer, horses, and bulls, but never humans
Steps of Cloning a Sheep:
1. Extraction of diploid nucleus from a body cell
2. Enucleation - which removing the nucleus from an egg cell
3. Insertion of the diploid nucleus into the enucleated egg cell
4. Stimulation by an electric shock of the diploid nucleus to mitotically divide
5. Culturing of the cell to ensure development into a blastocyst
6. Implantation in a surrogate mother
7. Birth
A certain flower can be red, white, or pink, and can also possess petals that are half one color and half another color. However the flowers that are solid color are homzygous. Flower color must be determined by:
(Multiple Choice)
1. codomiance
2. dominance
3. incomplete dominance
4. multiple alleles
Answers
Which term describes the ability a soil has to support plant growth?
a. Chemistry
b. Fertility
c. Texture
d. Pore space
Answers
Answer: b, fertility
Explanation: Soil needs fertility in order to have plant life stay alive.
Answer:
d
Explanation:
pore space concerns the oxygen All plants need oxygen for respiration, so a well-aerated soil is important for growing crops.
Question 8 (1 point) Why are sound waves considered a type of mechanical energy? lesson: 4.01 Sound waves are x-rays Sound waves require a medium to transfer energy Sound waves can travel through space Sounds waves are made by machines
Answers
Answer: Sound waves require a medium to transfer energy.
Explanation: Sound and water waves are mechanical waves meaning that they have to have a medium to travel through. The medium my be solid, liquid, or gas and the speed of the wave depends on the material properties of the medium.
The tablecloth moved when she applied force to it, as explained by (Newtons 1st Law/Newtons 2nd Law/Newtons 3rd Law). When she pulled on the tablecloth with an active force, the tablecloth exerted a reaction force on her explained by (Newtons 1st Law/Newtons 2nd Law/Newtons 3rd Law).
(Pick the answers in parenthesis)
Answers
Answer:
The tablecloth moved when she applied force to it, as explained by Newton's 1st law. When she pulled on the tablecloth with an active force, the tablecloth exerted a reaction force on her explained by Newton's 3rd law.
Why is it useful to group elements based on the way they change in chemical reactions
Answers
Answer: The elements in a group often look and behave similarly, because they have the same number of electrons in their outermost shell. Eg. Group 18 elements, on the far right side of the table, have completely full outer shells and rarely participate in chemical reactions
Why is RNAs structural weakness a big strength?
Answers
Answer:
Due to presence of single stranded.
Explanation:
RNAs structural weakness a big strength due to the presence of single stranded instead of double stranded. This single stranded helps RNA to occupy less space and utilize less energy for replication as compared to double stranded that occupy more space and use more energy for replication. So we can conclude that the structural weakness of RNA provides big strength to RNA.
Petroleum is a mixture of many carbon-based compounds. How is the carbon in petroleum released into the atmosphere?
A.
Petroleum is burned as fossil fuels.
B.
Plants use petroleum to create oxygen.
C.
Petroleum seeps into lakes and rivers and evaporates.
Answers
Answer:
A
Explanation:
When petroleum products such as gasoline are burned for energy, they release toxic gases and high amounts of carbon dioxide, a greenhouse gas. Carbon helps regulate the Earth's atmospheric temperature, and adding to the natural balance by burning fossil fuels adversely affects our
What does the term “carbon neutral” means? How does it relate to math?
Answers
Carbon-neutral refers to balancing out the overall quantity of carbon emissions.
What is carbon-neutral?Carbon balance, the situation where a person, company, or organization releases no net carbon into the environment. Lowering carbon emissions and using carbon offsets to offset emissions are two ways to do this.
Net-zero carbon indicates no carbon was emitted from the beginning, hence no carbon has to be caught or offset when the term "carbon-neutral" refers to balancing out the overall quantity of carbon emissions.
For instance, a business might declare it to be "zero carbon" if its building runs solely on solar power and consumes no fossil fuels.
Therefore, carbon neutrality means no net carbon in the environment.
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What properties of dna makes it possible for a probe to find a single-stranded dna target gene?
A. Alleles are in pairs
B. Probes are dominant over genes
C. Chromosomes come in pairs
D. A DNA molecule has two paired strands
Answers
Which statement best describes a result of this process? *
The spider from which the DNA sample was obtained can no longer produce spider silk
The goat milk now contains DNA molecules made of spider silk proteins.
Spider silk proteins can now be produced in large quantities without killing spiders to obtain them.
Both the spider and the goat can now produce both spider silk and goat milk
Answers
Answer:
This question is incomplete as it lacks some parts. The missing part is as follows:
" Scientists have used genes from spiders to genetically engineer goats that produce silk strands along with their milk".
The answer is Spider silk proteins can now be produced in large quantities without killing spiders to obtain them.
Explanation:
The procedure in this question is describing genetic engineering/modification, which involves manipulating the genome of an organism in order to obtain desirable traits. In this case, certain genes from spiders have been used to genetically modify goats, which now produce silk strands along with their milk.
This process means that silk proteins, which is naturally produced by spiders, can now be produced in large quantities without having to kill spiders to get it since it will nor be produced alongside milk by GM goats.
Use the diagram below to answer the following questions for 1 point each:
1. Identify ONE similarity between mitosis and meiosis.
2. Identify ONE difference in the results of mitosis and meiosis.
3. Identify ONE difference in the processes of mitosis and meiosis.
Answers
1. They both involve duplication of a cell's DNA content.
2. Mitosis is for asexual reproduction and meiosis is for sexual reproduction.
3. Mitosis produces 2 cells and meiosis produces 4.
Meiosis and Mitosis both are the cell divisions which involve karyokinesis followed by cytokinesis. Meiosis is different from mitosis in the ploidy of the offspring produced. Meiosis involves 2 divisions whereas mitosis involves only one division. Four daughter cells are produced through meiosis whereas only two are formed from mitosis.
What is Mitosis and Meiosis?Cell division occurs in a cell through two processes which include Mitosis and Meiosis. Generally, all the cells undergo mitotic division whereas meiosis occur in the organisms which reproduce through sexual mode of reproduction.
Mitosis is the process through which a single parent cell divides to make two new daughter cells which contains equal amount of genetic material as that of their parents. Thus, called as equational division. Here, each of the daughter cell receives a complete set of chromosomes from the parent cell.
Meiosis is a special type of cell division also called as reductional division. This division occurs in the germ cells in the organisms which reproduce through sexual mode of reproduction for the production of gametes, such as sperm or egg cells. These gametes are haploid in nature as they receive only half of the set of chromosomes from the parent cell. Meiosis involves two rounds of divisions which ultimately result in the formation of four cells with only one copy of each chromosome.
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The difference between a haploid and a diploid cell:
a. Haploid cells have three sets of chromosomes;
diploid cells only have one set.
b. Diploid cells have two sets of chromosomes;
haploid cells only have one set.
Haploid cells have 46 chromosomes and diploid
cells have 23 in a human.
d. Diploid cells have half the number of
chromosomes as a haploid cell.
Answers
Answer:
b
Explanation:
cause diploid cells have 2 set of chromosome and haploid have only one
Answer:
Definitely B!
Explanation:
Di means doubles or having two. Diploids do have two while haploids have only one.
Identify the types of point mutations depicted.
Answers
Answer:
The types of point mutation depicted are:
1. C. Silent mutation
2. B. Nonsense mutation
Explanation:
Point mutation is known to be a mutation that actually affects a single nucleotide and it has to do with the substitution of one base for another. This substitution can occur by changing, inserting or deleting a DNA or RNA sequence. A nonsense mutation refers to a change in DNA which leads a protein to either terminate or end its translation so quickly than expected. This mutation is commonly seen in humans.
Silent mutation is known to be the mutation in DNA whereby there are no effects which are observable in an organism's phenotype. This type of mutation are seen as a specific type of neutral mutation.
A sperm cell follows which path
A) seminiferous tubules, epididymis, vas deferens, urethra
B) urethra, vas deferens, ) seminiferous tubules, epididymis
C) seminiferous tubules, vas deferens, epididymis, urethra
Answers
Answer:
I believe its C
Explanation:
hope this helps
Which of the following conditions would lead to a snall population size?
a. a low birth to death ratio
b. a high birth to death ratio
C. immigration
d. large number of resources
Answers
Answer:
A. A low birth to death ratio
Explanation:
If people are dying quicker than they are being born, eventually you would have a very small population size.
All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
B
solvents
C
plastics
D
pesticides
Answers
because it’s the only one not harmful to soil. it would instead help the soil breakdown organic waste.
HHEEELPP[pppppp MMEEEEEE ill mark you brainiest !
Answers
NADH+ is oxidized to form NAD+.
Bread rises when yeast cells produce carbon dioxide.
Mrs. Calabash is completing a unit on ecology with her second grade class. She asks them to illustrate the vocabulary terms which have been used in the unit. Barry draws a herd of zebras. Which term is Barry most likely illustrating
Answers
Answer:
A population
Explanation:
A population refers to a group of organisms of the same specie that living together in a specific area. All the members are specifically of the same specie and possess that same breeding and living habits.
According to the given excerpt, the 'herd of zebras' collectively illustrates a population. A herd of zebras demonstrate a group zebras with the same biological breed and specifications.
what is radiation of heat
Answers
Answer:
radiation of heat is when heat is being radiated off a surface
Explanation: For example when you are cooking something on a stove top and you feel the surface is hot that is radiation of heat off a surface
I WILL GIVE BRAINLIST
Answers
Answer:
The answer is B
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