Answer:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. Gas exchange in gills and lungs operates by this process. Carbon dioxide is produced by all cells as a result of cellular metabolic processes.
Explanation:
The diffusion of a substance into or out of a cell requires a process called diffusion, by which the molecules pass out through the plasma membrane.
What is diffusion?Diffusion is a key mechanism for material transfer within cells and for the passage of critical tiny molecules across the cell membrane. This process controls the exchange of gases in the gills and lungs. All cells release carbon dioxide as a byproduct of biological metabolism.
There are two processes by which the molecules pass through a semi-permeable membrane. The processes are osmosis and diffusion. When the material transfer from low concentration to higher concentration.
Thus, diffusion is the process by which molecules travel through the plasma membrane to allow material to enter or exit a cell.
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1 point
4. Bob rides his bike a distance of 54 miles in 4 hours. What is his speed in
miles per minutes? (Use the formula sheet below to determine the
equation you need to use.) *
I’m
During the summer months, people who live near the North Pole will have than people who live near the equator longer days longer nights shorter days
Answer:
reas on the Equator have a constant 12 hours of day light all year round. As latitude increases to 80° (polar circles - north or south) day length can be seen to increase to 24 hours or decrease to zero (depending on time of year). Land of the Midnight Sun and Polar Winters where the sun never rises.
Explanation:
hope this helps
1. Changing environmental conditions, such as temperature or pH, can affect enzyme shape. How would this alter the enzyme's function?
Answer:
It may cause the enzyme to stop working by overheating the enzyme
Explanation:
What type of landscape made up most of the land during the Carboniferous period
Answer:
Characteristic of the Carboniferous period (from about 360 million to 300 million years ago) were its dense and swampy forests, which gave rise to large deposits of peat. Over the eons the peat transformed into rich coal stores in Western Europe and North America. The name "Carboniferous" refers to this coal.
Explanation:
How would you describe the difference in the motion of the sled from when the people first start pushing to when the sled is halfway down the hill?
The difference in the motion of the sled from when the people first start pushing to when the sled is halfway down the hill will be described as after starting off much more slowly, it picks up speed significantly by the bottom of the slope.
At the top of the hill, a sled has pushed itself. If we then apply a tiny push, the sled's initial speed will be 0, indicating that the sled's only starting energy is gravitational potential energy. Therefore, assuming there is no friction, the sled's greatest height will be equal to its initial brightness. So the slides will never make up for a bump that is higher than its starting point. The sled's highest point is equal to its initial height because of the rule of conservation of mechanical energy. The sled will never make it up if they restrict it if the friction is seated.
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1. The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity. The pickup truck has a changing velocity because the pickup truck
All three vehicles have a constant velocity.
All three vehicles have a constant velocity.
All three vehicles have a constant acceleration.
All three vehicles have a constant acceleration.
The pickup truck is the only vehicle accelerating.
The pickup truck is the only vehicle accelerating.
The minivan and sedan are both changing veloc
Answer:
The pickup truck is the only vehicle accelerating.
Explanation:
Acceleration refers to the change in velocity per unit time which means that when the velocity changes, acceleration will be produced and if there is constant velocity of a vehicle so the acceleration will be zero. All three vehicles have same velocity of 15 m/s but the truck has no uniform velocity which means acceleration is produced in the truck while no acceleration is formed by three vehicles.
Answer:
The pickup truck is traveling on a curve in the road
Explanation:
Common sense! The truck is traveling on a curve and therefore will have a change in velocity.
Why do you feel that human hand adaptations have helped to make humans such a successful species on earth? (List and explain at least 2 reasons.)
Answer:
lET me rEaD iT and tHeN ansWER iT. smh
Explanation:
James is conducting an experiment to test the effect of insecticides on frogs. He gives one group of frogs 10 cc of the insecticide and 0 cc of the insecticide to the other group of frogs. After 5 days, the effects of the insecticide are collected. what is the independent variable and dependent variable
Answer:
Independent variable: amount of insecticide
Dependent variable: effects of insecticide on frogs
Explanation:
Dependent variable in a research experiment, is the variable that is being studied, tested and measured by the researcher, while the independent variable is the variable that causes the dependent variable to change, when it is varied.
In this case, the amount of insecticides that is varied in quantity, is the independent variable that the researcher manipulates, while the independent variable is the effects caused by these varied amount of insecticide on frogs, which is tested and measured.
Is this cell on the left prokaryotic or eukaryotic?
Group of answer choices
prokaryotic
eukaryotic
Answer:
eukaryotic
Explanation:
Obvious plant
Bottom text
Answer:
What is this supposed to be bottom text
Explanation: plz help
Data Table 4: Diffusion Rates
5 minutes in vinegar:
Length of side:
10 mm (1cm)
20 mm (2cm)
30 mm (3cm)
The chart asks for “Distance Vinegar Diffused” and “Diffusion Rate (mm/minute)”
If you have this same assignment, please help. I’m in K-12.
Answer:
need to know what u r asking
Explanation:
Alan used a flashlight as the Sun and a ball as the Earth. He placed the flashlight on a table. Then he held the ball and started to walk
around the flashlight to show the day and night cycle of the Earth. What should he do to correctly show the day and night cycle of the Earth?
Answer:
D rotate the ball on its axis
Explanation:
Answer:
D
Explanation:
Which normal meiotic event would be the MOST LIKELY explanation for the mutation that causes Williams Syndrome? cytokinesis
Answer:
a
Explanation:
because
What is the primary source of the Van Allen Belts?
O The Outer Core
O The Inner Core
O The sun
O The mantle
Which is endocrine function?
A. Pyloric glands release mucus to the stomach
B. Adrenal glands release adrenaline into the blood.
C. Esophageal glands release mucus into the esophagus
D. Salivary glands release saliva into the mouth
Answer:B. Adrenal glands release adrenaline into the blood.
Explanation:
The adrenal glands are small glands located on top of each kidney. They produce hormones that you can't live without, including sex hormones and cortisol. Cortisol helps you respond to stress and has many other important functions. With adrenal gland disorders, your glands make too much or not enough hormones
Adrenal glands are a type of endocrine glands that release hormones that include adrenaline into the blood. Thus, the correct option is B
Endocrine glands secrete their products directly in the surrounding interstitial fluid or blood, and not through ducts.
Adrenal glands are a pair of endocrine glands that are present superior to each kidney. It comprises of two distinct regions - adrenal cortex and adrenal medulla.
Adrenal cortex is the outer region of the adrenal gland that produces and secretes hormones like mineralocorticoids, glucocorticoids and androgens.
Adrenal medulla is the inner region of the adrenal gland and produces and secretes the hormones adrenaline and noradrenaline.
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O 1) Genetics is the study of
Answer:
Genetics is a term that refers to the study of genes and their roles in inheritance - in other words, the way that certain traits or conditions are passed down from one generation to another. Genetics involves scientific studies of genes and their effects.
Explanation:
i have an iq of 216
Plz help me!! will mark brailyest!!!
how does tempature impact air movement?
Answer:
The heating of the earth, which in turn heats the atmosphere, is responsible for the motions and movements of the air in the atmosphere. The faster molecules move, the hotter the air. As the molecules heat and move faster, they are moving apart.
Explanation:
Answer:
As you move higher off the ground, it gets colder *and vice versa*.
Explanation:
When we move off the ground, density is pulled down to the ground due to gravity. Therefore, it gets colder. It's also because of our atmosphere. (Vice versa, of course)
P.S. Density and gravity are also key parts of climate change, keep that in mind.
Give an example of a prokaryotic cell?
Answer:
blue-green algae
Explanation:
Answer:
Bacteria is the biggest example but these are also examples blue-green algae, E. coli, and mycoplasma.
Explanation:
This is what it is: Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
HOpe this helps!!
Why do you think the starch molecule shown is a good source of energy for an organism?
A. The many bonds in the starch molecule store energy.
B. The starch molecule is made of atoms.
C. Starch is the only type of molecule that provides energy.
D. A starch molecule is made of more than one kind of atom.
Please help! I suck at Science!
Answer:
A
Explanation:
because it is known as a large molecule
The starch molecule is known as a good source of energy for an organism because the multiple bonds in the starch molecule are responsible for the storage of energy. Thus, the correct option for this question is A.
What is a Starch molecule?A starch molecule may be defined as a type of molecule that significantly consists of a chain of glucose molecules that are bound together in order to construct a bigger molecule, which is called a polysaccharide.
There are two types of polysaccharides present in the molecules of starch. They are as follows:
Amylose: It is a linear chain of glucose. Amylopectin: It is highly a branched chain of glucose.These long chains of glucose store a tremendous amount of energy during the synthesis of the starch molecules. Glucose provides instant energy while the breakdown of bonds in starch molecules takes time. So, the energy is liberated accordingly with a long-lasting effect.
Therefore, the multiple bonds in the starch molecule are responsible for the storage of energy. Thus, the correct option for this question is A.
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what percentage of energy is passed on from one trophic level to the next
Answer:
10 percent
On average, only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next
Explanation:
Which organelles are found in plant cells but not in animal cells?
cell membrane, vacuole
cell wall, chloroplasts
cell wall, vacuole
cell membrane, chloroplasts
Answer:
The organelles that are found in plant cells is a cell wall and the organelles that are not found in animal cells are chloroplasts
Explanation:
Hope this helps!!!!!
So it would be the second one!
Cell wall and chloroplasts are organelles found in plant cells.
What is Plant and Animal cell?Plant cell is a type of eukaryotic cell that is have membrane bound organelles found in green plants.
Organelles in plant cells are chloroplast, cell wall, ribosomes, vacuole and so on.
Animal cells are eukaryotic cells that is have membrane bound organelles which are enclosed in cell membrane.
Organelles found in Animal cells are cell membrane, mitochondria, ribosomes, Golgi apparatus and so on.
Therefore, Cell wall and chloroplasts are organelles found in plant cells.
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What does it represent?
Answer:
3
Explanation:
The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.
Whats the difference from the first and second law of thermodynamics
Answer:
Explanation:
the first law is the law of conservation of energy which basically means energy can't be created or destroyed in an isolated system.
the second law is that the entropy always increases in the isolated system. entropy is the measurement of the units thermal energy per unit temp.
Explain how tropical and polar climates differ.
Answer:
Okay.
Explanation:
Tropical climates are warm, bright, humid, and wet.
And Polar climates are cold, dry, and dark.
BRAINLIST OPPORTUNITY
Which type of infectious agent causes athlete's foot?
O a virus
O a bacterium
O a fungus
O a parasite
Answer:c
Explanation:
What do you notice about the size of the planets?
Answer:
space is weird and imagine all of the things we haven't discovered
Answer:
Small then big
What process occurs in Box A?
a. A scheme of cellular respiration. At box A, which is located in the cytosol, glucose turns into pyruvate with release of ATP and electrons carried by NADH.
b. Pyruvate from this stage is used in a cycle in box B, which is located in the mitochondrion.
c. As a result, ATP, CO2, and electrons carried by NADH and FADH2 are released.
d. The electrons carried by NADH and FADH2 from boxes A and B are used in box C (inside the mitochondrion) for transformation of a substance marked D (that comes from the cytosol) into a substance marked E (released to the cytosol) with release of ATP.
Answer:
The process occurring in Box A is Glycolysis
Explanation:
Glycolysis is the pathway by which glucose, a six-carbon molecule is oxidized to molecules of pyruvate, a three-carbon molecule with the release of ATP and electrons which are carried by NADH molecules.
The process occurs in the cytoplasm of cells and requires 10 glycolytic enzymes.
The pyruvate molecules from glycolysis is first oxidized to acetyl-CoA and carbon dioxide molecules. The acetyl-CoA molecules enter the citric acid cycle occurring in the mitochondria and are used up in the production of ATP, CO2, and electrons carried by NADH and FADH2.
The electrons carried by NADH and FADH2 from glycolysis and citric acid cycle are used in the oxidative phosphorylation pathway occurring inside the mitochondrion for transformation of oxygen molecules into water molecules with release of ATP.
if someone has pneumonia infection explain how this would affect the functioning of the circularly system
Answer:Circulatory system A pneumonia infection can spread from the lungs into the bloodstream. This is a serious complication. It can reach other major organs and result in organ damage or even death. The spread of bacteria through the blood is called bacteremia.
Thx for the points
Explanation:
Glucose and oxygen are products.
Photosynthesis
Respiration
Both
Answer:
Photosynthesis
Explanation:
In photosynthesis, carbon reduction helps make glucose, the oxygen is formed with the reduction of water in the photosystems 2 and 1.
In cellular respiration, both of these compounds would be reactants.
in order to get rid of the agricultural insecticides in fruits it's advised to soak them in a diluted sugar solution?
Answer:
False
Explanation:
In order to get rid of the agricultural insecticides in fruits it's false to soak them in a diluted sugar solution. This won’t effectively remove the insecticides in the fruit.
It is usually advisable to use 2% salt solution In which cold Water should be used in order to achieve effective removal of the insecticide from the fruits to enable it fit for consumption.