Which statement describes the energy involved in diffusion?O Diffusion requires energy in all cases.
O Diffusion requires energy only to move material in through the cell membrane.
O Diffusion does not require energy in any situation.
O Diffusion requires energy only to move material out through the cell membrane.
Answers
The statement that the energy involved in diffusion is as follows:
- Diffusion does not require energy in any situation.
Thus, the correct option is C.
What is Diffusion?
Diffusion may be defined as the process of migration of substances or molecules through a semipermeable membrane from an area of higher concentration to an area of lower concentration.
Diffusion does not require energy because it is classified under the passive transport of materials. Diffusion always works towards the concentration gradient.
Energy is typically involved when the movement occurs against the concentration gradient like active transport.
Therefore, the correct option for this question is C.
To learn more about Diffusion, refer to the link;
#SPJ6
Answer:
So B
Explanation:
Related Questions
One particular confound for the use of an adoption study of heritability is the phenomenon of _____ placement, in which a child is placed in a home that is similar to the home of the biological parents.A) unilateralB) forcedC) matchedD) selective
A source of voltage produces an electric current by
The greater the concentration of sulfur and nitrogen oxides, the higher the pH of precipitation.True False
True or False? A negative energy balance occurs when you take in more calories than you need, and a positive energy balance occurs when you take in fewer calories than you need.
Answers
I used the Lens Equation:
Where:
obj. is the distance of the object
im. is the distance of the image
f is the focal length
Final answer:
The image formed by the convex lens is real, located 10.91 cm to the right of the lens, and is inverted. The ray diagram would show rays from the object converging at the image point after passing through the lens.
Explanation:
In order to draw a ray diagram and find the location of the image for an object placed 30.0 cm to the left of a convex lens with a focal length of +8.0 cm, we first utilize what is known as the lens formula, which is 1/f = 1/do + 1/di. Here, f is the focal length of the lens, do is the object distance, and di is the image distance.
In the given question, the object distance (do) is -30 cm (the negative sign indicates that the object is on the same side of the lens as the light source), and the focal length (f) is +8 cm. Plugging these values into the lens equation, we find that 1/di = 1/f - 1/do = 1/8 - 1/(-30). Solving this, we get di = 10.91 cm.
This positive value for di means the image is real, meaning it can be projected onto a screen, and appears on the opposite side of the lens from where the object is. The magnitude of the image distance indicates the image is 10.91 cm from the lens.
To determine the orientation of the image, we use the magnification formula, m = -di/do. Substituting the given values into this formula, we get m = -10.91 / -30 = +0.36. Since this value is positive, the image is inverted. The image would appear smaller than the object because the absolute value of the magnification is less than 1.
Learn more about Convex lens image formation here:
#SPJ11
B. A warm and dry day with a wind moving in the opposite direction as the sound
C. A cold and dry day with a wind moving in the same direction as the sound
D. A cold and humid day with no wind
Answers
Sound waves travel through a medium such as solid, liquid, or gas. It travels faster when the molecules of its medium are closer together. This is the reason why it travels the slowest through dry air. When air is wet or humid, sound can travel faster because sound travels faster through water.
When sound waves pass through air, the most important factor that affects it is temperature. The higher the temperature, the faster the molecules vibrate. This allows sound waves to travel faster.
The answer is A. A warm and humid day with a wind moving in the same direction as the sound. hope this helps!!!!
What units do you use for your end result?
Answers
Answer:
multiply 65kg and 3m/s^2
to get 195kgm/s
or 195N
wait is that 3m/s or 3m/s^2?
Answers
Explanation:
KE = 1/2 mv²,
where KE is the kinetic energy,
m is the mass,
and v is the velocity.
Given m = 1500 kg and v = 30 m/s:
KE = 1/2 (1500 kg) (30 m/s)²
KE = 675,000 J
KE = 675 kJ
b. Explain how the evidence from the data in the graphs supports or does not support the scientist’s claim.
Answers
Respiratory and circulatory systems are the two systems within the human body that work together during exercise.
How does the respiratory and circulatory systems work together during exercise?
The respiratory system:
- allows the exchange of gases intake of oxygen and exhalation of carbon-dioxide.
- oxygenation of blood at the lungs.
The circulatory system:
- transports deoxygenated blood to the lungs for oxygenation.
- delivers oxygenated blood to the appropriate tissue.
- Hence, during exercise more oxygen is used by the body.
The claim by scientist is true?
During exercise:
- breathing rate increases from about 15 times per minute to roughly 40–60 times per minute.
- heart rate also rises, providing more oxygen to reach your muscles and allowing them to continue moving.
To learn more about respiratory system, circulatory system, blood, exercise, and oxygen here,
#SPJ2
Answer:
There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.
Explanation:
If the data consistently do not support the hypothesis, then CLEARLY, the hypothesis is NOT a reasonable explanation of what you are investigating. The hypothesis is rejected, and we search for a new interpretation, an new hypothesis that supports the experimental data
Answers
The statement ‘The three major scales used to measure earthquakes are Mercalli Scale, Richter Scale and Magnitude Scale’ is true. These three scales used to measure the seismic waves released by the earthquake.
Answer:true
Explanation: