When the concentration of a substance higher on one side of the cells selectively permeable membrane, certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy. This process is called
A.passive transport
B.active transport
C. Mitosis
D. Replication
Answer:
A.
Explanation:
osmosis and diffusion are both passive transport bc it doesnt require energy and only moves down cocentration gradient, never against concertration gradient. Give me a brainliest if i helped! ♡
When certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy, the process is called passive transport.
When diffusion takes place between compartments separated by a membrane permeable to that solute, it is called simple diffusion.
Passive transport does not require any additional energy other than the movement of the molecules, moving these in favor of their concentration gradient.
In other words, simple diffusion does not require ATP expenditure, since it is a spontaneous phenomenon.
The molecules that are mobilized by simple diffusion through the membrane are the nonpolar and small, the fat-soluble and the small polar ones, but without a net electric charge, such as H2O.
In the particular case of H2O, passive transport is called osmosis, the passage of water through the membrane by osmosis always takes place spontaneously and very quickly.
H2O will diffuse from the compartment with the lowest concentration of solutes or hypotonic medium, to the compartment with the highest concentration of solutes or hypertonic medium, in such a way as to equalize the concentrations in both compartments.
Therefore, we can conclude that when certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy, the process is called passive transport.
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What happens after mitosis is complete?
Once the mitosis is complete, the entire cell is divided into two by the way of a process called cytokinesis.
A person counts the number of flowers she sees on different types of plants she records the data every week what is the independent variable dependent variable constant and control
Answer:
Independent variable: Different types of plants
Dependent variable: Number of flowers
Control group: None in this experiment
Constant: same time of recording
Explanation:
Independent variable in an experiment refers to the variable that is manipulated or changed by the experimenter in order to effect a response. In this experiment, the independent variable is the DIFFERENT TYPES OF PLANTS USED because it is what is changed by the person.
Dependent variable is the variable that the experimenter measures or records. In this case, the dependent variable is the NUMBER OF FLOWERS recorded for each type of plant.
The control group of an experiment is the group that does not receive any experimental treatment i.e. group placed on normal conditions for comparison. In this experiment, NO CONTROL GROUP was used or mentioned.
The constant or controlled variable is the variable that is kept constant or unchanged throughout the experiment in order not to influence the outcome. In this experiment, the person records the number of flowers on each plant at the SAME TIME (every week), hence, it is the constant.
Look at the image, and write the correct name of each biome from the following list. chaparral, taiga, deciduous forest, desert, grasslands, rain forest, savannah, tundra
Answer:
There are eight major terrestrial biomes: tropical rainforests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. Biomes are large-scale environments that are distinguished by characteristic temperature ranges and amounts of precipitation.
A red dwarf star has a high __________ and a low ____________.
Answer:
High mass and low temperature
Explanation:
How is the cell membrane's function similar to a structure in a school? Use an analogy and justify your answer
Answer:
The cell membrane can be compared to the school gates.
Explanation:
Cell membranes only let in specific molecules (people), large substances (old people) cannot cross it while smaller molecules like oxygen (students) can easily pass through the membrane.
Comparable to the school gates is the cell membrane, cell membranes only let particular molecules (people) flow through larger substances (old people) and cannot do so.
What is the function of the cell membrane?A cell is shielded by its plasma membrane, often known as its cell membrane. The membrane serves a variety of purposes and also creates a stable environment inside the cell.
All cells include a membrane that divides the inside from the external environment. This membrane is known as the cell membrane or the plasma membrane.
Therefore, the gate acts as a cell membrane's function similar to a structure in a school the cell membrane controls the movement of materials into and out of the cell.
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The negative feedback system that allows a person to sweat is an example of which
characteristic of living things
Answer:
stops operating
how are clouds formed in the atmosphere?
Answer:
Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air.
Explanation:
How are novel variations added to a population?
Answer the following question. How might the human condition be improved through biological and environmental
engineering?
Answer:
This chapter examines the range of human consequences of, and responses to, global environmental change. We begin by developing the concept of human consequences and showing why, to understand them, it is critical to understand the variety of human responses to global change. We then offer a framework for thinking about human responses and discuss the pivotal role of conflict. The next section examines three cases that illustrate many of the major factors influencing the human consequences of global change. The following sections describe the human systems that are affected by or respond to global change, and how they interrelate. We conclude by offering some general principles for research and some research implications.
9) What trend do you notice about carbohydrates in the graph above?
your help is appreciated thanks ! :)
Answer:
carbohydrates burn within 2 hours after eating while lipids last 6 hours
Explanation:
carbohydrates are short term energy
and lipids are longer term of energy
The trend which can be noticed about carbohydrates in the graph above is that it increases the blood sugar level than the other food type.
In Science, biological macromolecules are mainly grouped into four (4) categories and these are;
Lipids.Nucleic acid.Proteins.Carbohydrates.Carbohydrates are typically found in energy-giving foods and they aid in the proper functioning of the body of a living organism such animals and human beings.
Also, carbohydrates are broken down in the body into sugar but not proteins or fat.
This ultimately implies that, an increase in the intake of carbohydrates can cause a subsequent increase in the blood sugar level.
Based on the graph above, we can deduce that carbohydrates increases the blood sugar level than the other food type.
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Which of these micropipetters would serve best to deliver 55 microliters?a. 0.5 to 10 µL micropipetter b. 10 - 100 µL micropipetter c. 50 - 1000 µL micropipetter
Answer:
b. 10 - 100 µL micropipetter
Explanation:
The micropipetters that would serve best to deliver 55 microliters would be the one which has a volume capacity of 10-100 µL.
This is because it will be easier to measure 55 micro liters from the Pipette which has a standard range of 10-100 microliter.
0.5 to 10 µL doesn’t fall within the range and it will be very hard measuring the volume.
Why is diversity important in science?
Answer:
Engaging people from a variety of genders, ethnicities, sexual orientations, perspectives, backgrounds, areas of expertise, religions, cultures, and other variables to participate in science is important for addressing inequities and increasing the size of the scientifically trained workforce.
Explanation:
Please someone help me and answer all the questions
magnetic force is appeared GUI
Which layer of the atmosphere leads to space?
Answer:
[See Below]
Explanation:
✦ The highest atmosphere level as well as the layer that leads to space is the Exosphere.
✧ Here's a diagram to show you.
~Hope this helps Mate. If you need anything feel free to message me.
list five cultural traits. give an example for each
Answer:
values and beliefs —— example: Americans believe if a person works hard,they will be successful.
Communication example:latin cultures speak spanish.
Food example: hot dogs are an American food.
Religion example: Christianity.
Traditions and customs example: in america,families gather and eat.
Explanation:
i hoep that helps
How do the hypothesis of microspheres and the RNA World hypothesis build off of each other?
Answer:
Microspheres are formed of proteins. It has been found that when an amino acid is permitted to get desiccated, then this amino acid produces proteins that in turn give rise to microspheres.
On the basis of the RNA world hypothesis, the first genetic substance was considered to be an RNA, and then later the DNA turned out to be the genetic substance of higher species during the passage of evolution. It was also believed that microspheres comprised encoded information within it, and at the time of the splitting of microspheres, this encrypted information may have got transferred to the upcoming generation.
Explanation:
am i correct? only if you actually know!! thank you
Answer: no it’s wrong it’s bacteria
Closed and Open Systems
An open system is one that receives input from
outside the system. For example, your body is an
open system because it receives food and oxygen
from outside the system (your body). What is another
example of an open system?
A rock in a field
An earthworm taking in soil for nutrition
Answer:
earthworm taking soil for nutrition
Explanation:
it's consuming the energy unlike the rock
An earthworm taking in soil for nutrition is another example of an open system, option B is correct.
An open system is characterized by its ability to exchange matter and energy with its external environment. In the case of an earthworm, it actively takes in soil for nutrition, breaking down organic matter and absorbing nutrients through its digestive system. This process allows the earthworm to grow, reproduce, and carry out essential life functions.
The exchange of soil, nutrients, and gases (such as oxygen) occurs continuously, sustaining the earthworm's biological activities. In contrast, a rock in a field does not interact with its environment in the same way. It remains a closed system, passively experiencing natural forces without actively receiving external inputs or engaging in metabolic processes, option B is correct.
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The complete question is:
An open system is one that receives input from outside the system. For example, your body is an open system because it receives food and oxygen from outside the system (your body). What is another example of an open system?
A. A rock in a field
B. An earthworm taking in soil for nutrition
The part of Earth that contains living things is:
Biome
Biosphere
Ecosystem
Answer:
It is Biosphere.
The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.
The ____________ registers the signal coming from the receptor and formulates a response.
My answer to the question is Control center.
deo: Are Bones Living Organs???
Answer:
yes
Explanation:
A bone is a rigid organ that constitutes part of the vertebrate skeleton in animals. Bones protect the various organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility.
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!
Answer:
the fault H is first then layer G and F
because the block is deformed not even layers, so means that the rocks accumulated in the fracture or fault under pressure.
The field of ________ is a thoroughly modern discipline that has led to new ways to treat infectious disease.
A) recombinant DNA technology
B) epidemiology
C) immunology
D) serology
E) biochemistry
Answer:
A
Explanation:
The field of recombinant DNA technology is a thoroughly modern discipline that has led to new ways to treat infectious diseases.
Recombinant DNA technology involves the process of combining DNA of different organisms and inserting such in a host organism in order to elicit desirable genetic characters that could be of value to different fields in science.
The fields in which recombinant DNA technology has found applications include agriculture, medicine, and industrial productions. With this technology, new drugs and methods of treating diseases have been developed in the area of medicine, disease-resistant crop varieties have been developed in agriculture, and important chemicals for production have been developed in industries.
Correct option: A
Suppose a doctor is asking whether eating carrots every day will improve his patients’ eyesight. Which statement would be a bad hypothesis for this study? If the patient is given carrots every day, then the patient’s eyesight will be closely monitored. If the patient is given carrots every day, then the patient’s eyesight will improve slightly. If the patient is given carrots every day, then the patient’s eyesight will improve significantly. If the patient is given carrots every day, then the patient’s eyesight will worsen.
Answer:
The answer would be C)If the patient is given carrots every day, then the patient’s eyesight will improve significantly.
Explanation:
Carrots makes your eyes get better and if someone keeps eating carrots everyday then their eyesight will improve A LOT
The buy local, ______ movement encourages consumers to purchase goods that are produced nearby to save fossil fuels. Please Help.
Answer:
No fossil fuels are used.
Explanation:
Buy local movement is a movement in order to encourages the consumers to buy goods and products that are produced locally because it has less costly due to save fossil fuels. Those goods which are imported from other countries are very expensive because the shipping cost is also included. So the products made locally are cheap due to no shipping cost or fossil fuels are used.
Answer:
market
Explanation:
Can you unscramble all the words below?
Hint: They all start with the letter C.
RABCNO
1. I'm an element with 6 protons.
OMASPCS
2. I can help you if you're lost.
RNIARCOVE
3. I eat other animals.
LODUC
4. You'll have to look up to see
me.
IL CAI
5. I help things move.
Answer:
Explanation:
1. carbon
2.Compass
3.Carnivore
4.Cloud
5.Cilia
WHO EVER GET IT RIGHT WILL GET BRAINLY!!! A runner travels 2 miles in the first 10 minutes and 3 miles in the next 20 minutes. What is the average speed of the runner in miles per hour? Using the graph, calculate the average speed. What is the average speed of a helicopter that flies 50 km in 20 minutes and then 30 km in 10 minutes? What is the average speed of a lizard that runs 100 meters in 40 seconds and then runs an additional 50 meters in 20 seconds?
Answer:
100
Explanation:
because
Answer: 2.5 m per second
Explanation: even tho im late can I still get brainlist
Which of the following statements is not an observation?
O Jessie is wearing red shirt.
Jessie has blond hair.
O Jessie is wearing a red shirt because her blue one got dirty.
O Jessie has her hair in a ponytail.
Answer:
the 3rd option - Jessie is wearing a red shirt because her blue one got dirty.
Is biodiversity renewable or nonrenewable?
Answer:
renewable
Explanation:
Biodiversity refers to the variety of plant and animal wild life in the world or in a particular habitat which is important in that specific location. Renewable is anything that recycles itself through its consumption. Which is what happens in biomes. Life dies off and provides the necessary resources for new life to be reborn and so on, thus making Biodiversity renewable.