Answer:
B. Passive transport
Explanation:
Answer:
b)Passive transport because the movement of substances across the membrane without the expenditure of cellular energy.
while active transport is :
active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP).
PLZ help!!!
A cell biologist analyzed four different cells that had varying numbers of each type of organelle.
Based on the numbers of the four types of organelles listed in the table, which cell should the cell biologist hypothesize is most likely to produce the highest number of proteins for export from the cell?
Cell 1
Cell 2
Cell 3
Cell 4
Answer:
A. Cell 1
Explanation:
The Golgi apparatus is located at the base of the cell and serves as a place where proteins are added to lipids, which are then transported to other parts of the cell. It also contains enzymes that break down proteins, carbohydrates and lipids. The Golgi apparatus can be found in most eukaryotic cells.
In the given data the Cell 1 will export the most protein.
How is the protein synthesized in cell ?
The membrane-bound organelle of eukaryotic cells (cells with clearly defined nuclei) known as the Golgi apparatus is made up of a series of flattened, stacked pouches known as cisternae. It is also known as the Golgi complex or the Golgi body. Proteins and lipids are transported, modified, and packaged into vesicles by the Golgi apparatus for delivery to specific locations. It is close to the cell nucleus and in the cytoplasm, next to the endoplasmic reticulum. Plant cells can have hundreds of Golgi apparatus, whereas many types of cells only have one or two.At some point during their maturation, secretory proteins and glycoproteins, cell membrane proteins, lysosomal proteins, and some glycolipids all pass through the Golgi apparatus. The Golgi is also where a lot of the material for the cell wall goes in plant cells.Between the "cis" and "trans" faces of the Golgi apparatus, there are three primary compartments that are structurally polarized. The enzymatic content of each segment of these faces differs significantly, as do their biochemical differences. Most of the time, the membranes on the cis face are thinner than the others.The Golgi apparatus typically consists of four to eight cisternae, though it may contain as many as sixty in some single-celled organisms. Matrix proteins hold the cisternae together, and cytoplasmic microtubules support the entire Golgi apparatus. Other organelles are not involved in the protein synthesis and packing except Golgi apparatus.
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If ATP hydrolysis to release energy is inhibited, how would this impact transport across the cell membrane?
A) Oxygen would not be able to cross the membrane.
B) Aquaporins would inhibit water from crossing into the membrane.
C) Solutes would not be able to move against the concentration gradient.
D) Facilitated diffusion of ions would not be able to cross the membrane.
Answer:
B) Aquaporins would inhibit water from crossing into the membrane.
Explanation:
A short story of how water cycle works
Answer:
A summary of the water cycle
The heat of the sun provides energy to make the water cycle work. The sun evaporates water from the oceans into water vapor. This invisible vapor rises into the atmosphere, where the air is colder. Water drops form in clouds, which then fall to Earth as precipitation (rain and snow).
Explanation:
PLEASE HELP I WILL MARK BRAINLYYYY PLESEEEE CORRECT ANSWERS ONLY
Question 2 of 11
The color of a star depends on which other property of the star?
A. Luminosity
B. Apparent brightness
C. Distance from Earth
D. Temperature
answer:
D. temperature
explanation:
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
Answer:
the anwer is D temperature
What is the initial source of the energy in all food webs and food chains?
Answer:
the sun
Explanation:
jellyfish mushrooms oak trees and bacteria contain cells which component of cell theory does this best illustates
Answer:
A. All living things are made of cells
Explanation:
Both plants and animals contain cells, so that's why it is A.
(I also took the quiz and got it right.)
Hope this Helps!
HIV, the virus that causes AIDS, is transferred through body fluids. People once thought that HIV infections were untreatable. Now, many people live relatively long and healthy lives despite being infected with HIV.
If variation in a species was only due to meiosis, how would that limit the evolution of that species?
But the ultimate source of NEW genes or forms of genes (alleles) is genetic mutation. Without mutation, you are bound to run out of various combinations of existing genes eventually, which puts that species in a bit of an evolutionary pickle. Continual genetic diversity (fed by mutations) is necessary for the survival of the species. Less genetic variation means fewer possible adaptations that could result in higher reproductive success, which means the species is more likely to be wiped out by disease or competition for resources or mates.
Which are classified as sac fungi?
O truffles, morels, yeast
O mushrooms, puffballs, rusts
O morels, mushrooms, chytrids
O chytrids, truffles, puffballs
Truffles, morels, yeast are classified as sac fungi. So, the correct option is (A).
What is Sac fungi?Ascomycota also known as sac fungi, belong to a group of fungi (Kingdom Fungi) characterized by a saccular structure, the ascus, which contains four to eight ascospores in the sexual stage.
These are divided into subgroups based on whether the asci are produced singly or in one of several types of fruiting structures, or ascocarps, and on the method of discharge of the ascospores.
Many ascomycetes are plant pathogens, while some are animal pathogens, where some are edible mushrooms, and many live on dead organic matter. The largest and most commonly known ascomycetes include morels and truffles.
Thus, truffles, morels, yeast are classified as sac fungi. So, the correct option is (A).
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Which word describes this 250 m measurement
Answer: if you answer mine ill answer yours
Explanation:
Are there any parts of the human body that get oxygen directly from the air and not from the blood? please help! My brain is not working right now
Answer:
Upper-layer skin cells, the cells in the front surface of the eyes
Explanation:
Here is what I found....hope this helps and i'm still trying to wake up XDD
Upper-layer skin cells and the cells in the front surface of the eyes get a significant amount of oxygen directly from the air rather than from the blood. Human bodies have a huge demand for oxygen. As a result, the oxygen that is able to passively diffuse into the body directly from the air is not nearly enough to run the whole body. Fortunately, we have lungs that can actively pull in oxygen and transfer it to the blood, allowing the body to transport oxygen to the cells by using the blood like a fleet of delivery trucks. Most of our cells rely on the blood delivery service. However, the cells in the outer layers or our skin and eyes are in direct contact with the atmosphere and can efficiently get their oxygen right from the air.
*EXTRA POINTS*
If the pressure of a gas decreases, what happens to its volume?
If the pressure of a gas increases, what happens to its volume?
Answer:
1.it will go up 2. it will go down
who ever answers with a better answer gets brainliest!!!!!!! have a wonderful day dont forget to smile :)))
Answer:
A
its easier to to understand if its all organized
Answer:
A.
U smile to
have a wonderful day
Explanation:
After securing a new graft, you should not cover the grafted area so that
air can freely circulate to the cambium layer.
True
False
what units would you use to measure a red blood cell?
Answer:
An RBC count is measured in millions per cubic millimeter
Explanation:
Please I really need help
Answer:
A
Explanation: i promise you it’s a
Answer:
A
Explanation:
The seasons.
Where did most animals live during the Paleozoic
Answer:
The Paleozoic Era began with the Cambrian explosion. It ended with the Permian extinction. During the era, invertebrate animals diversified in the oceans. Plants, amphibians, and reptiles also moved to the land
Clean air is of concern to most Americans. The Environmental Protection Agency (EPA) has set forth guidelines for business, industry, and private citizens to follow to help improve air quality. All but one is a guideline of the EPA to improve air quality. That is
Answer: The question is incomplete and the options are not given, the options was found on another websites , here are the options
A. check and replace air filters regularly
B. reduce, reuse, and recycle whenever possible.
C. fix leaking faucets and minimize outdoor water use.
D. reduce the amount of particulate matter by limiting burning.
The correct option is C.
fix leaking faucets and minimize outdoor water use.
Explanation:
Fix leaking faucets and minimize outdoor water use is a guideline for the environmental protection agency because fixing faucet will allow the device to deliver water to a plumbing system. If the faucets is leaking it will lead to water wastage and pollutants having entry through the water system, when it is fixed it will minimize the outdoor water use.
The process where Ilquld water changes to a gas as water vapor. A Condensation B Evaporation С Runoff D Precipitation
Answer:
B
Explanation:
Evaporation
The Phoenix area of the Southwestern desert typically receives 8 inches of precipitation yearly, in two seasonal patterns. Even though it is an arid region, it has high biological diversity. Thin-leaf trees abound, such as palo verde and desert ironwoods wildlife includes insects, reptiles, many bird species, small rodents, and other mammals. Which factor in the Southwestern desert ecosystem is abiotic?
A rainstorm can be considered an element in the Southwestern desert ecosystem that is abiotic.
What is an abiotic factor?An abiotic factor is any type of non-living condition that interacts with organisms (biotic factors) in an ecosystem.
Some examples of abiotic factors may include rainstorms (precipitations), temperature, light conditions, etc.The range of abiotic factors is a fundamental issue for the survival of organisms that live in an ecosystem.In conclusion, a rainstorm can be considered an element in the Southwestern desert ecosystem that is abiotic.
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The factor in the Southwestern desert ecosystem that is abiotic is precipitation.
What are abiotic factors?Abiotic factors are the non-living components of an ecosystem influencing the living organisms' distribution in an area. Precipitation is an abiotic factor that provides water for plants and animals to survive and is a very important part of the ecosystem.
In the Southwestern desert ecosystem, the low precipitation levels resulted in an arid environment which results in the presence of a unique array of plant and animal species that have adapted to survive in these conditions.
Temperature is also another important abiotic factor in the Southwestern desert ecosystem. The high temperatures during the day and low temperature at night influence the behavior and survival of the animals and plants that live in this environment. Wind patterns, soil type, sunlight, etc. are other abiotic factors.
Therefore, the factor in the Southwestern desert ecosystem that is abiotic is precipitation.
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How does heat transfer between the atmosphere and the ocean affect regional climate?
Explanation:
Both the ocean and the atmosphere transport roughly equal amounts of heat from Earth's equatorial regions - which are intensely heated by the Sun - toward the icy poles, which receive relatively little solar radiation.
The ocean and atmosphere are constantly in a process of energy exchange (heat transfer) as the ocean bodies serves as heat trap which absorbs the larger portion of the Sun's radiation, which is distributed to surrounding areas as sunlight subsides, with the ocean water also losing moisture due to evaporation.
Areas very close to the ocean, topical regions experience the highest level of evaporation and they inturn experience the highest amount of Rainfall. Hence, dictating the regional climate of the tropics.
Ocean currents also play a major role in ensuring distribution of heat, precipitation and warmth between the equatorial and tropical regions, Hence, patching a sort of balance in regional distribution of heat and Rainfall.
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Explain why if you lightly place a paper clip in water it floats, but if you
disturb the water it sinks.
The paper clip, which has a far higher density than the water, can float because of the strong surface tension.
What is the surface tension of liquid?Because water is polar, its molecules are attracted to one another. Water “sticks” together due to the hydrogen ends, which are positive compared to the oxygen ends, which are negative.
Because of this, there is surface tension, and breaking these intermolecular interactions requires a certain amount of energy.
Whether an object will float or sink in another substance depends on its density. If an object's density is lower than the liquid it is placed in, it will float. If an object is heavier than the liquid it is immersed in, it will sink.
Therefore, if you lightly place a paper clip in water it floats, but if you
disturb the water, it sinks.
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What does having two layers allow the cell membrane to do?
A. make lipids and phospholipids
B . support the cell wall
C. pass nutrients and wastes through
D. Make Proteins
Answer:
i think it's B.
Explanation:
good luck :)
A good experiment has several characteristics. Which claim describes a good scientific experiment? Results can be reproduced. Results are not reviewed by peers. Results are based on a small sample size. Results are based on an undisclosed process or procedure.
Answer:
Results can be reproduced
Explanation:
An experiment is a test conducted to prove the validity of a hypothesis. The results of an experiment is used to either accept or reject a predicted claim called hypothesis.
As stated in this question, a scientific experiment has several characteristics including its falsifiability. The result of a good scientific experiment must be able to be REPRODUCED OR REPLICATED. This increases the chance of being correct and the claim accepted.
As a way to reduce the number of cases pf malaria a human tropical disease a specific sequence is inserted into the reproductive cells of anopheles mosquitoes which process was most likely used to alter these mosquitoes
Answer: Mosquito transgenesis
Explanation:
The malaria is caused by the malarial parasite, which is transferred to the human or animal host by a mosquito bite named Anopheles. Mosquito transgenesis involves the genetic modification by introducing genes or novel elements inside the mosquito genome of the reproductive cells of the mosquito, which could prevent the replication of mosquito genome and production of progeny mosquitoes. As these mosquitoes can act as a vector for the transmission of malarial parasite, and can spread disease.
What would happen if a large organism was made of a single cell?
Answer:
All single-celled organisms contain everything they
need to survive within their one cell. These cells are able to get
energy from complex molecules, to move, and to sense their
environment. ENERGY, it'd need massive amounts of energy to survive.
Organisms made of one cell do not
grow as large as organisms made of many cells. But all living things
need to get energy. All living things also need to obtain materials to
build new structures inside cells or replace worn-out cell parts.
As a result, individual cells grow larger over time. It'd need lots of materials to keep growing.
Organisms respond to changes in the environment. Even microscopic
organisms respond to conditions such as light, temperature, and
touch. The ability to respond allows organisms to find food, avoid
being eaten, or perform other tasks necessary to survive.
For being so large and only a single celled it'd would probably only be found in a very safe environment.
Answer:
As a result, individual cells grow larger over time. It'd need lots of materials to keep growing. being eaten, or perform other tasks necessary to survive. For being so large and only a single celled it'd would probably only be found in a very safe environment.
Please Help!!
Thanks!!
Answer:
C. 3 Atoms
Explanation:
As the name suggests, there are three carbon atoms inside of (C(3))H6.
BIOLOGY, i need help please
Answer:
true
Explanation:
Answer:
i'm not 100% sure but i thnk is true
Explanation:
A herd of zebras has 9 males and 62 females.
During a one-year period, 22 foals that are born
survive and 25 adults die. Six females join the
herd. Three males and 11 females leave the herd.
Has the herd reached its carrying capacity for this
ecosystem? How do you know?
a. The herd has reached its carrying capacity
because the growth rate is negative.
b. The herd has reached its carrying
capacity because the growth rate
is positive.
c. The herd has not reached its carrying capacity
because the growth rate is negative.
d. The herd has not reached its carrying
capacity because the growth rate
is positive.
Answer:
C. The herd has reached its carrying capacity because the growth rate is negative.
Explanation:
The herd has not reached its carrying capacity because the growth rate is negative. Hence option c is correct.
What is ecosystem?Ecosystem is defined as a location where a bubble of life is created by the interaction of plants, animals, and other species with the weather, topography, and other factors. In ecosystems, biotic and abiotic factors or nonliving components coexist. Human welfare and survival depend on healthy terrestrial ecosystems because they give us access to critical goods and advantages.
Clumps can disperse in a region when there is an unequal distribution of resources like food, water, moisture, temperature, or other materials. the three benefits that one organism might get by coexisting in a population with clumped dispersal. There is more access to food resources, less movement required for individuals to find mates, and improved predator protection for organisms.
Thus, the herd has not reached its carrying capacity because the growth rate is negative. Hence option c is correct.
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Enzymes are protein molecules with a very specific shape that help them carry out chemical reactions. What name is given to the specifically shaped region of the enzyme onto which it attaches to a substrate?
- Substrate
- Active Site
- Allosteric
- Cofactors
Answer:
active site
Explanation: