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
otez555 [7]
3 years ago
5

What types of molecules may not need transport proteins to be able to cross cytoplasmic membranes?

Biology
1 answer:
frozen [14]3 years ago
4 0

The correct answer is small hydrophobic molecules.

The smaller the molecule and the more hydrophobic, or nonpolar, it is, the more rapidly it will diffuse across a membrane. It is because of the composition of membrane (lipid bilayer). By contrast, membrane is highly impermeable to charged molecules (ions), no matter how small they are.


You might be interested in
It's around lunchtime and you are feeling hungry, so you eat a sandwich. When the food
Kipish [7]
This would be an example of negative feedback because the body isn’t trying to surpass a set point. It’s trying to maintain the amount of food in the stomach at that point.
3 0
3 years ago
Read 2 more answers
Help pleaseeee???????
IRINA_888 [86]

Answer:

Written below.

Explanation:

5. During meiosis, a reproductive cell and its nucleus divide twice and produce four cells––two pairs of identical haploid cells.

6. Homologous chromosomes are two pieces of DNA within a diploid organism that carry the same genes, one from each parental source. In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes.

3 0
2 years ago
Read 2 more answers
What does atomic number tell you about an atom? * Number of electrons in the nucleus Number of protons and neutrons in the nucle
Morgarella [4.7K]

Answer:

Number of protons in the nucleus

6 0
2 years ago
Read 2 more answers
Which trophic level is most vulnerable to extinction?
lara [203]

Answer:

c. secondary consumer level

Explanation:

Most secondary extinctions are due to direct bottom‐up effects: consumers go extinct when their resources are lost. Secondary extinctions due to trophic cascades and disruption of predator‐mediated coexistence also occur.

8 0
3 years ago
Read 2 more answers
Why do individuals who suffer from brainstem injuries have difficulty with their autonomic functions?
scoundrel [369]

Answer: The brainstem controls autonomic functions through cranial nerves arising from it, along with the medulla oblongata, therefore an injury to the area can cause loss of these functions.

Explanation:

The brainstem comprises of the midbrain, and the pons and medulla of the hindbrain. It is in direct continuation with the spinal cord. Ten cranial nerves arise from this part, and a number of tracts pass through this region. The medulla of the brainstem are particularly involved in maintaining heart rate, breathing and blood pressure. In case of a brainstem injury, the cranial nerves responsible for autonomic functions could get damaged leading to dysfunction and/or the areas of medulla consisting of centres controlling heart rate, blood pressure or other autonomic functions, if damaged could cause difficulties.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which layer of the eye completely surrounds the eye except for a dark, round opening called the pupil?
    15·2 answers
  • How would clearing up pollution help address climate change?
    8·1 answer
  • 2.) insulin is needed to help your cells take in sugar from your blood. After you eat a candy bar, will your insulin gene be exp
    5·1 answer
  • The active site of an enzyme is the region that _____.
    11·1 answer
  • Hurricanes in the Northern hemisphere always rotate:
    10·1 answer
  • What's the difference between artificial selection and genetic engineering?
    15·1 answer
  • So I have an assignment I need to do and I have no idea how to answer these questions, it is due by the end of the day. Even if
    11·1 answer
  • Convert the temperature 49 degrees celcius to kelvin
    15·1 answer
  • The diagram below shows a food web. The organisms in a food web can be classified based on how they get the energy they need.
    12·1 answer
  • What proportion of each parent plant's genetic material does each offspring plant have?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!