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
sweet-ann [11.9K]
3 years ago
15

Fill in the blanks below to complete the hypothesis for this lab. It should answer the lab question, "What is the effect of mole

cule size on a molecule's ability to diffuse across a semipermeable membrane?" If molecules are small enough, then . . .
Biology
2 answers:
Svetradugi [14.3K]3 years ago
6 0

Answer:

Sample Hypothesis: If molecules are small enough, then they will diffuse across a semipermeable membrane because they can pass through its tiny openings.

-correct conclusion (“then”): Molecules will diffuse through the membrane

-correct reason (“because”): Molecules can pass through the membrane’s tiny openings.

Explanation:

edge. 2020

fomenos3 years ago
4 0

Answer:

They can pass through the semi permeable membrane

Explanation:

The permeability of a particular solute depends on the size, solubility, properties etc and even the properties of the membrane it is aiming to pass through

If molecules are small enough, then they can pass through the semi-permeable membrane. This is as a result of permeability being inversely proportional to the molecule size.

You might be interested in
What is the scrotum and where is it (;...
Jobisdone [24]

The scrotum is a sac of skin that hangs from the body at the front of the pelvis, between the legs. It sits next to the upper thighs, just below the penis. The scrotum contains the testicles

3 0
3 years ago
Read 2 more answers
Whitch of the following statements are true?
maria [59]

Answer:

All the statements are true except the second i. e. the soil quality in an ecosystem Does not matter as much as soil quantity.

Explanation:

In an ecosystem both quality and quantity of water is very important. If the quality of water is not suitable, that it contains polluted substances so the health of the organism such as fishes and other aquatic animals will adversely affected and sometimes dealth occurs and the ecosystem will be negatively affected.

5 0
3 years ago
Where do the branches of the bronchial tree ultimately end? 2. list the steps of the pulmonary circuit of the cardiovascular sys
Aneli [31]
1. The branches of the bronchial tree ultimately ends at the alveoli.
Bronchial tree consist of bronchi, bronchioles, and alveoli. Bronchi are formed as the lower part of the trachea divides into two tubes. Bronchioles are smaller tube divisions of the bronchi. It walls contain smooth muscle and no cartilage. Alveoli are tiny ends of the alveolar ducts, which functions as the site for gaseous exchange. 

2. Blood flows from the left atrium; mitral (bicuspid valves), the left ventricle, aortic valve, aorta, veins and heart, right side of the heart, superior and inferior vena cavae, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary trunk, pulmonary artery, lungs, pulmonary veins, then back to the heart...

3. Arteries and the veins differ in structures and they way they functions; Arteries carry oxygenated blood away from the heart to the body (except pulmonary artery) while veins carry deoxygenated blood back from the body to the heart (except pulmonary veins). A structural differences includes; the veins contain valves while arteries lack. Arteries have narrow lumen while veins have wide lumen. Lastly, blood carried by veins has higher pressure compared to blood carried in vessels.

4. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and the bronchioles. Blood moves in and out of the lungs throgh the pulmonary arteries and veins that connect to the heart.

5. The cartilage rings of the trachea
They are strong but flexible tissues which support the trachea or the windpipe while still allowing it to move and flex during breathing. Additionally these cartilage rings are C-shaped to provide room for the esophagus, which lies along the back side of the trachea.

6. Functions of the larynx includes;
To protect the airway from choking on material in the throat
to regulate the flow of air into our lungs
The production of sounds used for speech 
Larynx is part of the respiratory system and is located between the pharynx and the trachea. Humans use larynx to breathe, talk and swallow. 

7. Structures that make up the pathway of air through the respiratory system starting with the external nares; We start with; External nares, nasal cavity, internal nares, nasopharynx, laryngopharynx,oropharynx, larynx, trachea, primary bronchus, secondary bronchus, tertiary bronchus, bronchiole, terminal bronchiole, respiratory bronchiole, alveolar duct, alveolar sac and alveolus. 
6 0
2 years ago
Proteins are made of _________ and the sequence of these determine how the protein will fold up and take shape, which ultimately
brilliants [131]

Answer:

B ) amino acids

Explanation:

B ) amino acids,

3 0
2 years ago
Read 2 more answers
Which has characteristics similar to a scientific model? A. the Brooklyn Bridge B. a planetary rover C. a deep-sea submersible D
Lerok [7]
C. a toy train is the item that has characteristics similar to a scientific model.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Species A became extinct about 200,000 years before Species B evolved. Both species lived in the same location. In which arrange
    7·2 answers
  • Plants are susceptible to bacterial infections, which can damage their structure or even kill them. Which of the following would
    15·1 answer
  • What happens when you eat more than your body needs for energy?
    7·1 answer
  • HELP!! "During the ______ period, the first vertebrates appeared on Earth"
    7·2 answers
  • These elements are located to the right of the dividing line. Nitrogen (N), oxygen (O), fluorine (F), chlorine (CI), and the nob
    12·2 answers
  • How does the number of organisms in each level change as you move close to species level
    12·1 answer
  • Statements accurately describe cells?
    8·1 answer
  • What are the 2 main groups into which cells are classified? What is the major difference
    13·2 answers
  • Consider the skeleton.
    14·1 answer
  • Whats the luminosity of the star nash
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!