1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masteriza [31]
3 years ago
9

PLEASE, PLEASE, PLEASE HELP!!! REAL ANSWERS ONLY!!! NO LINKS OR I WILL REPORT!!! NO BOTS EITHER!!! I HAVE MADE THIS QUESTION ALM

OST 5 TIMES PLEASE HELP I'M GONNA CRY!!!
Respond to the question: How do things move across a cell membrane? Give two examples. (5-8 sentences)
https://www.khanaca demy.org/gclassroom/test-prep/mcat/cells/transport-across-a-cell-membrane/v/how-do-things-move-across-a-cell-membrane
That is the video. Remove the space to make it work.
Biology
1 answer:
Anon25 [30]3 years ago
4 0

Materials move within the cell 's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion. ... Diffusion: Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). 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.The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. ... Active transport requires energy, because protein machines actively grab molecules on one side of the membrane and push them through to the other side

You might be interested in
promoters are sequences of rna that are the start signals for tha transcription of mrna true or false
Simora [160]
False              jbuivlyhlvvgkuvuly
6 0
3 years ago
Read 2 more answers
Which element has the most properties in common with calcium (Ca)?
Vlad [161]

Answer:bromine

Explanation: because im smart and i did this already so i know the answer so your welcome :D

8 0
1 year ago
Hello what is this? I need help quick pleasee
bearhunter [10]
B because B is the nucleus which is the storage location of DNA
5 0
3 years ago
Read 2 more answers
Innate immunity________.
labwork [276]

Answer:

The answer is A.

Explanation:

Since only 1 of the options is wrong, i assume you are looking for that one.

Two types of immunity systems, innate immunity and adaptive immunity. Adaptive immunity is formed when it is exposed to a harmful substance, vaccines for example create adaptive immunity.

Innate immunity is present at birth which consists our skin protects us physically, chemical substances in our blood that protect us from bacteria and infections and also our blood cells such as T cells.

Since innate immunity forms one of the first lines of defense in our immune system and is the first to respond to a threat in a few hours down to as little as minutes, it is not slower than adaptive immunity in its response to infections and pathogens.

I hope this answer helps.

4 0
3 years ago
What is the purpose of the lab?
Alex787 [66]

Explanation:

Accordingly, the introductory physics laboratories have the following purposes and goals:

1. To provide an experimental foundation for the theoretical concepts introduced in the lectures. It is important that students have an opportunity to verify some of the ideas for themselves.

2. To familiarize students with experimental apparatus, the scientific method, and methods of data analysis so that they will have some idea of the inductive process by which the ideas were originated. To teach how to make careful experimental observations and how to think about and draw conclusions from such data.

3. To introduce the methods used for estimating and dealing with experimental uncertainties, including simple ideas in probability theory and the distinctions between random (statistical) and systematic "errors." This is essential in understanding what valid conclusions can be deduced from experimental data and that, properly obtained, these conclusions are valid, notwithstanding the uncertainty of the data.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Constance's body is capable of producing insulin, but the insulin is misused. her condition is known as ____.
    9·2 answers
  • Tables display data in row ad colums true or false
    7·2 answers
  • Which sub-phase of the interphase does the cell spend the most time in ?
    5·2 answers
  • Which system is responsible for supporting your muscles and protecting your vital organs?
    11·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    13·1 answer
  • What are THREE characteristics of early plants (its a multiple choice question)
    12·1 answer
  • Which human organ system eliminates liquid and gaseous wastes from the body?
    11·1 answer
  • We absend an egg in class over a 3 day period. Water diffused out of the egg when it was placed in corn syrup, causing the egg t
    12·1 answer
  • Please Help please please <br> i need Help
    14·2 answers
  • How do the oxygen and nutrient levels in the adult vena cava compare to those levels in the fetal vena cava?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!