critically discuss the transport mechanisms across the membrane​

Answers

Answer 1

Diffusion, osmosis and active transport.

Explanation:

. Diffusion is the movement of substances from a region of high concentration to a region of low concentration across the membrane.

.Osmosis is the movement of water molecules from a hypotonic solution to a hypertonic solution across the membrane.

.Active transport is the movement of substances from a region of low concentration to a region of high concentration across the membrane with the utilization of energy.


Related Questions

Which of the following is not correct about diffraction?

Answers

Answer:

Diffraction occurs just with electromagnetic waves.

Explanation:

The information that should not be true about diffraction is that it arise with the electromagnetic waves only.

What is diffraction?

It is considered as the process where the beam of light or the other system waves should be spread out that leads of passing via the narrow aperture or it should be an across of an edge that should be accompanied by interfering between the formation of the waves that should be generated.

So the above information should be considered.

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Answers

Answer:

a.

Explanation: i had this in a social studies test before its a

Answer:

IN my opinion, it should be B

Explanation:

help pliz :3 I need your help and thank you <3​

Answers

Answer:

need to answer all??tell

Which of the following best describes how the RNA sequence specifies the production of an amino acid chain?

A.
Each individual RNA base codes for three amino acids.

B.
Each group of three RNA bases codes for an enzyme that connects amino acids.

C.
Each individual RNA base codes for a ribosome location where amino acids are assembled.

D.
Each group of three RNA bases codes for a specific amino acid.

Answers

Answer:

The answer is B Each group of three RNA bases codes for an enzyme that connects amino acids.

Briefly explain the nature of scientific inquiry. Include discussion of the role that evidence and falsifiability play in the process. Is this a strength or a weakness of the scientific mode of
thinking?

Answers

Answer:

Science is a process that involves proof and error. Scientific hypotheses are used to find evidence supporting scientific statements, but new evidence can be used to reject previously accepted ones in order to get closer to the truth.

Explanation:

Scientific inquiries refer to the processes by which scientists study phenomena of the natural world and propose alternative explanations (hypotheses) useful for understanding such mechanisms. When hypotheses are supported by many evidence and studies from different sources, scientific theories associated with these hypotheses become accepted by the scientific community. In science, a scientific statement may become falsifiable when it is contradicted by new lines of evidence and/or new observations.

What three processes or forces
combine to set convection
currents in motion?

Answers

Answer:

There are three types of heat transfer: radiation, conduction, and convection. Heating and cooling of the fluid, changes in the fluid's density, and the force of gravity combine to set convection currents in motion.

Explanation:

where is the best place to find information about the hazards that area associated with a compound

Answers

Answer:

Read a Material Safety Data Sheet (MSDS).

Explanation:

Ashton is a crime scene investigator. He ensures that all the evidence gathered at the scene is properly handled and labeled. What is Ashton protecting?
Ashton ensures that the (blank) the documentation of who possesses evidence at all times, is protected by properly handling and labeling evidence.

Answers

when it says (blank) it means evidence evidence.

What enzyme deficiency in RBC leads to hemolytic anemia due to oxidative stress? ​

Answers

In some cases, massive destruction of red blood cells caused death. This drug-induced hemolytic anemia was shown 30 years later to be caused by a deficiency of glucose 6-phosphate dehydrogenase, the enzyme catalyzing the first step in the oxidative branch of the pentose phosphate pathway.

in short terms, glucose 6-phosphate dehydrogenase

Given that cellular respiration uses oxygen and produces carbon dioxide, which of the following statements can be inferred from the diagram shown above?

A. Animals participate in cellular respiration, while plants participate in both cellular respiration and photosynthesis.
B. Animals do not rely on plants for survival.
C. Animals participate in cellular respiration because it results in the same products as photosynthesis.
D. Animals participate in cellular respiration, while plants do not.

Answers

Answer:

A. Animals participate in cellular respiration, while plants participate in both cellular respiration and photosynthesis.

Explanation:

The option (A) is correct. Animals participate in cellular respiration, while plants participate in both cellular respiration and photosynthesis.

What do you mean by cellular respiration?

Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.

Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power many reactions throughout the body. There are three main steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.

During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.

Learn more about cellular respiration:

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Which trophic level do anacondas and jaguars fill in the Amazon rainforest?

Answers

Answer:

tertiary consumer

Explanation:

how do you feel nonrenewable energy impacts the environment?

Answers

Answer:

Explanation:

Non renewable energy typically releases carbon dioxide, methane, and other gasses into the atmosphere.

PLEASE HELP WITH THIS!!!

Answers

Answer:

my mama is my mom

Explanation:

mum gae

Infer: In which part of Earth's core do
convection currents occur?

Answers

Answer:

mantle

Explanation:

Convection currents in the Earth occur in the mantle. The core of the Earth is extremely hot, and material in the mantle close to the core is heated..

DNA __________ joins _______to synthesize a new __________DNA strand

Answers

Polymerase, nucleotides, complementary
Hope that helped :)

Which of the following is undesirable when developing organic compost?
a)treated sawdust
b)decomposition
c)nematodes
d)kitchen detritus

Answers

it is either b or d. good luck

Answer:

C.

Explanation:

nematodes are roundworms and are undesirable

Someone help thank you

Answers

Answer:

because its faster

Explanation:

The car on the right has less because even though they are moving at the same speed it has less mass, requiring less energy to move.

List 3 inputs (things entering) for the leaf in Model 1.

Answers

Answer:

light energy,carbon dioxide, and water

Explanation:

Answer:

light energy,carbon dioxide , water

A BISC 220 student went swimming at the Uytengsu Aquatics Center. Having missed an important lecture on the respiratory system, he thought it would be a good idea to hyperventilate for a minute before diving into the pool and swimming vigorously underwater. Shortly after he began swimming, he lost consciousness and would have drowned if not for the quick action of the lifeguard. Which one of the following best describes what happened?
A. Hyperventilation increased the Poz in his blood, which inhibited the brainstem respiratory center.
B. Hyperventilation decreased blood Pco2, which reduced respiratory drive at the same time that exercise increased the demand for O2
C. Skeletal muscle activity caused an increase in blood pH, which suppressed brain function and made him faint.
D. Hyperventilation increased the saturation of hemoglobin with O2, but vigorous exercise caused the bound O2 to be replaced by CO2

Answers

Answer:

B. Hyperventilation decreased blood Pco2, which reduced respiratory drive at the same time that exercise increased the demand for O2.

Explanation:

Hyperventilation is a breathing at an abnormal rate. There is an increased rate of loss of carbon dioxide which causes an increased demand for the oxygen. The respiration process is affected due to hyperventilation.

Why does warm air always rise at a front?

Answers

Warm air is less dense than the cool air that surrounds it so it rises above it

I NEED HELP WITH SCIENCE!!!
1. Which term names the action that is happening when an acid eats away part of a metal bar?


weathering


corrosion


alkalizing


neutralizing


2. Which group of compounds tastes bitter and are usually slippery when placed in water?

metalloids


bases


corrosives


acids

3.Which number represents the pH of pure water?


1


7


11


14

4.What is the pH of sulfuric acid?


under 7


7


over 7


exactly 14

5.What is the pH of the lye in soap?


exactly 3


under 7


over 7


8

Answers

Answer:

corrosionbases7It warys of how much concentration there is over 7

EXPLANATION:

plz can i get brainliest:)

Alkali substances has a pH greater than 7 hence it follows that the lye in soap has a pH over 7.

What is corrosion?

The term corrosion has to do with the waering away of a metal surface due to the action of oxidation. Hence the term applicable is corrosion.

The bases are know to be have a bitter taste and are slippery to touch hence the correct response is bases.

Water is a neutral substance, in the pH scale, a neutral substance has a pH of 7 hence the pH of water is 7.

Sulfuric acid is an acid and acids have a pH that is below 7 hence the pH of sulfuric acid is under 7.

Given the fact that alkali substances has a pH greater than 7, it follows that the lye in soap has a pH over 7.

Learn more about pH: https://brainly.com/question/14356798

1. Define physical change.
2. What are some examples of physical change?
3. The wood in the Figure below is being cut with a chainsaw. Is this a physical change?
Why or why not?

Answers

1. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
2. Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
3.it is a physical change because in a physical change is usually easy to see.

During the formation of metamorphic rocks, what most likely causes pressure to increase?

Answers

Answer:

Magma pockets rise.

Explanation:

Answer:

It should be D, rocks beneath Earth's surface are forced toward the mantle.

Explanation:

edge2021

2. Define the structure of DNA by filling in the
descriptions below

Answers

Answer:

Please refer to the explanation below.

Explanation:

The sugar and phosphates molecules form the sides of the helix.

The nitrogen bases form the teeth of the helix.

Each nucleotide is made of a nitrogen base, a sugar, and a phosphate group.

Transcribe the following DNA strand: ATGCATTGCGAT

Answers

Translation: UACGUAACGCUA
Transcription: tyr, val, thr, leu
5′ CAGTCAAGCAT 3′

Explanation: This sequence is complementary and in the correct orientation.

In plant and animal adaptations, form follows function. True or false?

Answers

Answer:

FALSE

Explanation:

In plant and animal adaptations, form follows function. it is true because all forms of organisms give adaptive advantages.

Adaptation

Living beings tend to have adaptations according to the environment in which they live. Plants in hot and dry climates generally have their leaves reduced, or even modified into thorns, as a way of reducing the contact surface and thus avoiding transpiration.

Whit this information, we can conclude that in plant and animal adaptations, form follows function. it is true because all forms of organisms give adaptive advantages.

Learn more about adaptive advantages in brainly.com/question/22557205

In the late 1980s and early 1990s, the percentage of Icelandic children whose bacterial infections were caused by bacteria resistant to penicillin rose at an alarming rate. After public health officials initiated a campaign to reduce the use of penicillin, resistance dropped off. This observation is consistent with the hypothesis that ________.

Answers

Answer:

The correct answer would be - "bacterial populations evolve in response to the selection pressure imposed by antibiotics".

Explanation:

The given information provided in the question about the bacterial infection supports the hypothesis that the bacterial population shows the evolution in response to the selection pressure caused by the antibiotics due to the fact that bacteria increased resistance gradually with time. This resistance towards antibiotics increased the percentage of bacterially infected children in the late 1980s and early 1990s.

In this case, the population of bacteria having resistance genes is selected to evolved selected to increase their offsprings.

Match the bacterial type with its proper definition. An answer choice can only be used once. A. Requires oxygen, but is toxic at atmospheric concentrations B. Can use oxygen for growth or can grow without it C. In fluid thitoglycollate medium, shows growth only at the top area of the medium D. Oxygen is completely toxic to it A. microaerophile B. facultative anaerobe C. obligate aerobe D. obligate anaerobe E. aerotolerant anaerobe

Answers

Answer:

ABCD

Explanation:

Bacteria is classified into 5 different groups  basically on their shapes which are spherical,  rod,  spiral,  vibrios and corkscrew

A) Requires oxygen, but is toxic at atmospheric concentrations

Microaerophile

B) Can use oxygen for growth or can grow without it

Facultative anaerobe

C) In fluid thitoglycollate medium, shows growth only at the top area of the medium

Obligate aerobe

D) Oxygen is completely toxic to it

Obligate anaerobe

How many genes do u have for each trait?

Answers

Answer:

please give me brainlist and follow

Explanation:

An international research effort called the Human Genome Project, which worked to determine the sequence of the human genome and identify the genes that it contains, estimated that humans have between 20,000 and 25,000 genes. Every person has two copies of each gene, one inherited from each parent.

the blood speed in a normal segment of a horizontal artery is 0.15 m/s. An abnormal segment of the artery is narrowed by an arteriosclerotic plaque down to one fifth its normal cross sectional area. What is the difference in blood preassures between the normal and constricted segments of the artery. The density of the blood is 1060

Answers

Answer:

286.2  pa

Explanation:

Blood speed in a normal segment of a horizontal artery ( v2 ) = 0.15 m/s

Density of blood = 1060 kg/m^3

Normal sectional area = A2

constricted sectional area ( A1 )= 1/5 A2

Determine the difference in blood pressures between the normal and constricted segments

we will apply Equation of continuity     Av = constant

Δ p = 12 PV^2

     = 12 * 1060 * ( 0.15 )^2

     = 12720 * 0.0225  =  286.2  pa

attached below is a detailed solution of the Given problem

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