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
bixtya [17]
3 years ago
14

Please help I will mark brainly ‘

Biology
2 answers:
Black_prince [1.1K]3 years ago
8 0
It’s because they are polar. Nonpolar molecules move through the membrane easily, while polar molecules, such as water, move against the concentration gradient and thus move slower.
Contact [7]3 years ago
7 0
They are semi-permeable because they can diffuse and pass through the plasma membrane easily.
You might be interested in
If the "free" water molecule concentration outside of a cell is higher than that inside the cell, the solution outside of the ce
lubasha [3.4K]
... termed "hypotonic," meaning less solids (or more diluted) than inside the cell. For fluid movement in/out of cells, water will diffuse (via osmosis) from the hypotonic solution to the hypertonic one, assuming a permeable barrier (i.e. cell membrane) allows it. With this case, water will flow into the cell from outside.
7 0
2 years ago
Nuris is writing a paper on the scientist who first named cells after studying cork under a microscope. Who is her paper about?
Setler79 [48]
Robert Hooke was the first scientist to discover cell. This discovery was made possible by the use of microscope which he invented. With this microscope, Robert examined a cork and noticed pores which filled the entire volume of the thin slices of cork; he called the pores cells. This discovery was made in January 1653.
4 0
3 years ago
Read 2 more answers
Who created binomial nomenclature
andre [41]
Carl Linnaeus
 a guy from Sweden

 
6 0
3 years ago
Read 2 more answers
The drug colchicine inhibits the formation of spindle fibers during mitosis. If you treat dividing plant cells with colchicine,
vekshin1

Answer:

D

Explanation:

During metaphase of cell division, the chromosomes line up in the metaphase plate and the spindle fibers from the poles extend and attach to the centromeres of the chromosomes. The spindle then contracts and pull different chromosomes to the opposite poles of the cell before the parent cell divides.   If spindle fibers do not form, then the chromosomes will not separate during anaphase.

Therefore, the final cell after mitosis will be a cell with double the number of chromosomes -because if you remember, during interphase, genetic material is replicated so each daughter cell can have its copy-. Due to quality control in the process of cell divisison, this cell will mostly undergo apoptosis, otherwise, it could develop into cancer.

8 0
3 years ago
Imagine you are an engineer who needs to test a scale model of a
FinnZ [79.3K]

Answer:

The problem will be because:

  • <u>The error in the construction of the bridge will be actually 40 cm</u>.

Explanation:

When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, <em><u>from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error</u></em>.

8 0
3 years ago
Other questions:
  • Many children were paralyzed by polio in the 1950s. Today, polio has been reduced by 99 percent. Which statement best explains h
    6·2 answers
  • Myocardial infarction secondary to atherosclerosis and ischemia. Once oxygen returned to the damaged heart, reperfusion injury o
    5·1 answer
  • Patient i has a ___ deformity; that is, it was present at birth.
    11·1 answer
  • When plants make "food" by photosynthesis, they change the energy in sunlight to?
    5·1 answer
  • Biology question 32.<br> do you think human height is affected only by genetics? Explain your answer
    9·1 answer
  • Write a paragraph as if you are a molecule of ammonia that will be converted to uric acid and then to urea and excreted as urine
    12·2 answers
  • Which rock exhibits banding? the topic is earth science
    14·1 answer
  • What is the difference between primary and secondary succession?
    9·2 answers
  • When plants are stressed by dry conditions, they secrete the hormone abscisic acid (ABA) and in response the stomata close, even
    14·2 answers
  • PLEASE HELP I NEED THIS FAST PLEASE
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!