Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?

a) Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
b) Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
c) Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
d) Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.

Answers

Answer 1

Answer:

I think it would be d.

Explanation:


Related Questions

Please help me ASAP real quick n easy

Answers

Answer:

Carbon monoxide gas.

Explanation:

The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!

What is the function of the macromolecule nucleotide?
A.SHRED STC
B.Immediate energy
C.Stored enery
D.Body instructions

Answers

Answer:

I believe that the answer is D.

Explanation:

A) is wrong

B) is carbohydrates

C) is lipids

D) is nucleic acids and the monomer of nucleic acids are nucleotides.

Please I need the the experimental group, the control group, independent variable, dependent variable and controlled variable and a summarized version of the experiment by today please!

“Chad is attempting to determine how different colors of light
affect plant growth. Chad places one spider plant in a cabinet
under a blue light and one spider plant in a cabinet under a red
light. Chad knows he needs to compare his plants to a plant
grown under white light so he places a third spider plant on the
window sill where the sun shines. All plants are the same age
and are given equal amounts of light time, plant food and water.
At the end of a two week period, Chad will measure the height of
each plant.”

Answers

Answer:

can you please answer my question please

Explanation:

pleaseee

How do the circulatory system and immune system work together to respond to an injury?

Answers

Answer:

The number of white blood cells in the blood can increase during an immune response. These cells travel through the circulatory system and the lymphatic system to an injured or infected area of the body. White blood cells leave the blood vessels and travel into the damaged tissue, where the immune response takes place.

Earthquakes that occur far from plate boundaries are called

Answers

Answer:

intraplate' earthquakes

Explanation:

how do the respiratory and circulatory systems work together to maintain homeostasis

Answers

The respiratory system regulates oxygen flow, and provides regulation for oxygen blood content. Circulatory system plays a roll in providing enough oxygenated blood to the body

write any two disvantages of local units​

Answers

Answer:

1.it will run only at that particular local place.

2.the people of other places would not be able to understand those units system

Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits.

Answers

Answer:

Explanation:

Three ways in which mutation could occur are

1) If an error occurs during DNA replication and it's not corrected in time by DNA polymerase.

2) If there is a deletion of a base(s) in the sequence of the DNA. The deletion of a DNA nucleotide/base could also cause a mutation as that could affect the formation of an enzyme or protein useful in building and/processing certain body parts/processes.

3) Thymine dimerization: Thymine dimers are mutations that prevent DNA from replication or even transcription hence preventing a cell from undergoing division (hence causes cancer). They are formed when covalent bonds are formed between the bases of a DNA sequence (somewhere around the carbon-carbon double bond).

The two effects are

1) It could cause cancer as described in (3) above (in the case of thymine dimer)

2) It could lead to deformity in an individual because of the gene that is supposed to code for the last finger has a base deletion, that could eventually lead to the absence of that finger or a shorter or "strange" finger.

Cytoplasm is liquid that keeps the cell _________.
A: moving
B: airy
C: solid

Answers

Answer:

I think the cytoplasm keeps the cell solid.

Explanation:

Cytoplasm keeps all the cellular organelles suspended. The cytoplasm helps to keep them in place. It is also the site of most metabolic activities in the cell, and it allows materials to pass easily throughout the cell.

The cytoplasm is the liquid that keeps the cell solid. The correct option is C.

What is cytoplasm?

The cytoplasm is a liquid that is filled inside the cell. Between the cell membrane and the nucleus, there is a jelly-like fluid called cytoplasm. It facilitates material exchange and storage among cell organelles.

Cytoplasm helps the cell to stay still and rigid. It places all the cell organelle into a fixed place and the transfer of ions and molecules is also done by the cytoplasm. It is made up of water, salts, and other various material.

They help in the coming in of the materials and going out of the materials. They also protect the cell from shock and other invasive, they make the cell rigid and flexible and also protect recall from each other.

Thus, the correct option is C. solid.

To learn more about cytoplasm, refer to the below link:

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A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. True or False.

Answers

Answer:

True

Explanation:

That is the exact definition that I learned.

I need help on those two questions

Answers

6-C (breaks off)
7-C(they secrete acid that breaks away rocks)

An agricultural biologist was evaluating two newly developed varieties of wheat as potential crops. In an experiment, seedlings were germinated on moist paper towels at 20ºC for 48 hours. Oxygen consumption of the two-day-old seedlings was measured at different temperatures. The data are shown in the graph below. In a second experiment, variety A seedlings at both temperatures were treated with a chemical that prevents NADH from being oxidized to NAD+. Predict the most likely effect of the chemical on metabolism and oxygen consumption of the treated seedlings. Explain your prediction.

Answers

Answer:

The definition is listed in the clarification segment below, and according to the present circumstances.

Explanation:

It undergoes different morphological as well as biochemical modifications mostly during germination. Product contains nutrients and even some hydrolases such as energy, carbohydrates. Owing to the availability of phytic compounds, the seed coat seems to be very durable in nature. Hydrolytic enzymes launch their function by consuming oxygen throughout order to remove this hard coating. In several other processes, including the electron transport system as well as the Kreb process, oxygen also becomes necessary.

The initial phase of germinating seeds requires anaerobic environments where even the enzymes dehydrogenase can function. The subsequent dehydrogenase enzyme brings the electron throughout the electron transport system from either the base to oxygen.  Unless the oxygen frequency is compared with varieties A and B, it can be seen through the analysis that variety B actually absorbed more oxygen. Oxygen intake rates are also depending upon period.The impact of temperature mostly on absorption of oxygen seems to be present. Shift the supply at low temperatures have a low intake of oxygen, while varieties grown over extreme temperatures use much more oxygen. The metabolism of such a seedling is influenced by temperature. Metabolically active young plants display a larger intake of oxygen.

Viruses exist on a microscopic scale

True
False

Answers

Answer:

True

Taking a look at viruses under the microscope. Unlike other unicellular organisms like bacteria, viruses are commonly referred to as particles rather than cells.

True! viruses can only be seen in DNA and a microscopic scale

The mother has long fur:
(FF)
F= long fur

The father does not have long fur:
(ff)
f=short fur

Answers

Answer:

are you looking for a pedigree, or a square pedigree?

Explanation:

how does each of your mutations affect the amino acid sequences? Are the mutations missense mutations, silent mutations or nonsense mutations?

a. Point mutation?

b. Frameshift-insertion?

c. Frameshift-deletion?​

Answers

Answer:

the correct answer is B Frame shift insertion

Explanation:

plz give me brainiest

Frameshift-insertion mutations affect the amino acid sequences.

Thus, The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene.

This is significant because a cell reads the genetic code for proteins in groups of three nucleotides.

These so-called "triplet codons" each stand for one of the 20 different amino acids that go into making a protein. This normal reading frame will be disrupted by a mutation, which will result in an inaccurate reading of the entire gene sequence after the mutation.

Thus, Frameshift-insertion mutations affect the amino acid sequences.

Learn more about Frameshift insertion, refer to the link:

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Which of the four prokaryotes listed below is the most efficient?
A. facultative aerobes
B. obligate anaerobes
C. aerotolerant organisms
D. obligate aerobes

Answers

Answer:

B

Explanation:

If you are reading this then congratulations I’m wasting your time and you could be doing school. But it’s weird since I’m constructing this sentence other then doing school your thinking that I’m a hypocrite. I am. And I wasted even more of your time is your reading the last word of this sentence.

Answers

tooru oikawa's favorite food is milk bread, and his personal motto is "if you're gonna hit it, then hit it 'till it breaks?!"

First correct answers get Brainlies. Spam answers get flagged.

New Zealand has a population of 4,326,380 and has an area of 103,736 miles squared while Australia has an area of 2,967,909 miles squared and a population of 21,905,140. Explain how New Zealand can have a larger population density than Australia even though it has a smaller total population.

Answers

The reason they have a higher population density is because they have more people on average in a certain area, because New Zealand is smaller they are given less space to live, this means that more people are crammed together, making the density of people within a square mile higher. When you give less square miles, you reduce the amount you have to divide the population by, which makes the density go up.

( In case you wanted the calculations for the density on New Zealand and Australia, it is about 41 to 42 people a square mile in Zealand, and maybe 7 or 8 per square mile in Australia.)

Hope this helps, if not, comment below please!!!

Choose the answer that best describes the order of the life cycle of a large star.
•gas clouds, star ignites, hydrogen depleted, red supergiant, super nova, neutron star
•gas clouds, star ignites, neutron star, hydrogen depleted, red giant supernova
•gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf

Answers

It is three I think so

Answer:

I think its A gas clouds, star ignites, hydrogen depleted, red super giant, super nova, neutron star

Explanation:

Its Not gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf that is the wrong answer

PLEASE HELP QUICKLY ;-;
50 points and brainliest for first correct answer please help I'm desperate lol

Answers

it’s shows the highest points in the ph levels

Chromosomes create genes true or false

Answers

Answer:

false

Explanation:

genes are made up from dna and are created from viruses or inherited from our parents

Hope this helped! Have a good day!

How do vaccinations work to provide immunity? and What body system regulates blood glucose levels? (For a Biology exam)

Thanks :)

Answers

Answer:

it trains the body immunity towards certain diseases

Explanation:

first of all we humans have two types of wbc cells phagocytes & lymphocytes. phagocytes produces pseudopodia which is like cytoplasm that traps or catches bacteria or viruses. lymphocytes produces chemical antibodies which destroy the viruses or bacteria by attaching to the virus and burst it out. Now when u get vaccinated u train those wbc cells for future viruses and hepl them to make antibodies to defend the body.

The blood glucose gets regulated by production of insulin in pancreas to maintain proper amount of glucose in the body

Which of the following is not an example of energy transformations in an ecosystem? a. sunlight driving photosynthesis in plants b. herbivores feeding on plants c. predators feeding on herbivores d. none of the above Please select the best answer from the choices provided A B C D

Answers

Answer:

D. None of the above

Explanation:

Energy transformation is the process of transfer and conversion of energy from one species to another. None of the above is not an example of energy transformation. Thus, option D is correct.

What is energy transformation?

Energy transformation is the process in an ecosystem that includes the conversion of energy from one level to another in the food chain or the metabolic reactions.

Photosynthetic reactions under the sun, herbivores feeding on producers, and predators feeding on the primary consumers are examples of energy conversion as it is continuously passing the energy to another species in the ecosystem.

Therefore, none of the above is not an example of energy transformation.

Learn more about energy transformation here:

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What type of substance do humans make?

Answers

Answer:

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.

Explanation:

Brainliest; please?

Which of the following explains why some plants look green?
Your Answer
A
chlorophyll is the main plant pigment and it absorbs mainly wavelengths of light that are
B
chlorophyll is the main plant pigment and it transmits mainly wavelengths of light that ar
chlorophyll is the only type of plant pigment found in leaves
x plants contain different pigments which absorb and transmit different wavelengths of ligi
Back
C chlorophyll is the only type of plant pigment found in leaves

Answers

Answer:

the answer is a

Explanation:

Viruses are one of the leading causes of illness in the world

True
False

Answers

Answer:

True

Explanation:

Answer:

False, but be sure you read what follows.

Explanation:

False: Heart disease and Most Cancers are not viruses. Or at least as far as I know. However complicating the issue is the fact that after a viral infection, heart disease can develop.

Cancer is another example, and the answer again is not black and white. 16% of all cancers can trace their beginnings to a bacteria or virus. That leaves 84% whose beginnings are not that clear.

The question is not black and white. I'd be careful how you think of it. If something is a complication, is that a direct cause? I still think the answer is false,  but don't be surprised if your instructor disagrees. Move on to something a little less black and white.

Human blood's pH is 7.4. What kind of drinks are safe for us.
*
Highly Acidic
Neutral or close to neutral
O Highly Basic
pH O, PH1, PH13, and pH14

Answers

Neutral or close to neutral

Predict how a lack of resources (food, water, shelter) would influence population size. Do you think the lack of availability would increase or decrease the size of a population? Why?

Answers

Answer:

a lack of resources would most likely decrease a population size because it will limit growth and decrease survival rates. There will also be more competition.

Explanation:

Please don't plagiarize. Thanks :)

everyone would
Die so population size would



Decrease
so BecAuse oRgansisms need population food and water and house to suvrbive

Light energy for the plant to use in making its food is trapped during ____ reactions.
a.
light-independent
c.
light-dependent
b.
glucose-dependent
d.
oxygen-dependent

Answers

Answer: c.  light-dependent

Hope this helps!!! :)

Answer:

The answer is C. light-dependent  

Explanation:

Edge 2021 + top comment !

How does oxygen enter the cells of the tube worm

Answers

Answer:

Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane (Figure 2). The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.

Explanation:

Hope this helps!

Answer:

This is what you need

Explanation:

Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.

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