Name one molecule that DOES NOT pass through the cell membrane easily
Answers
Answer:
glucose
Explanation:
Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot.
Related Questions
1.
Autotrophs make sugar from carbon dioxide and water using light energy in a
process called
a. cellular respiration
b. photophosphorylation
c. photosynthesis
d. metabolism
Answers
Answer: C. photosynthesis
Explanation:
Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar.
What are some of the ways that the human body uses digested proteins?
Answers
What structure within the membrane transports large molecules?
Answers
Answer:
A vesicle
Explanation:
Explanation:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.
Help me people ❤️ quickly
Answers
Answer:
if people waste water it might lead to a shortage in the future
Explanation:
When an igneous rock forms on top of the Earth's surface it cools quickly and there is almost no time for crystals to form. Obsidian shown below is an example. What type of igneous rock is this?
Answers
Answer:one of the three main rock of cooling and solidification of magma or lava
Explanation:
What are s the difference between the theory of play tectonic and the theory of continental drift
Answers
Current geological thinking most closely follows:
neptunism
plutonism
catastrophism
uniformitarianism
Answers
Answer:
uniformitarianism
Explanation:
Uniformitarianism is a doctrine that suggests that Eart's geological processes were the same in the past, as they are now. The whole geological science is based on this thinking.
This doctrine explains that the Eart has changed in uniform ways from the past until the present. Uniformitarianism is the key to an understanding of thr geological process.
During the process of photosynthesis, green
plants produce
(1) sunlight
(3) nitrogen
(2) methane
(4) sugar
Answers
The correct answer from those would be 4) Sugar
Answer: Green plants produce sugar for energy
Is there any marine life in the Dead Sea?
Please answer correctly, no fake answers.
Answers
There are no plants, fish, or any other visible life in the sea. Its salt concentration is a staggering 33.7%, 8.6 times saltier than ocean water, which is only about 3.5% salt. ... Yet, for now, life goes on. Biologists have known since the 1930s the lake is "not dead yet"
Hemophilia is a recessive trait carried on the X chromosome. What are the genotype and phenotype ratios of a cross between a normal woman who is a carrier for hemophilia and a man who is normal?
Answers
Answer:
hope this helps you, have a blessed day!
Explanation:
A man who has hemophilia and a woman who is a carrier have: a 25% (one in four) chance of having a son with hemophilia. a 25% chance of having a son with normal blood clotting.
During inversion, a chromosome fragment breaks free and reattaches itself
a) in all chromosomes at once.
b) in a translocation.
c) in reverse.
d) in a nonhomologous pair.
Answers
Answer:
C.
Explanation:
Inversion occurs when a part of the chromosome breaks off, flips around, and becomes reattached. So, the order of the genes becomes reversed from what it was.
Why is the current system for the classification of organisms subject to change?
A. New geographic locations are being discovered, leading to the identification of
unique organisms.
B. New organisms are being discovered, and observations of anatomical similarities lead to the identification of these organisms.
C. Improved technology is being used to analyze the shapes of fossilized bone, which allows for a more precise comparison of organisms.
D. Molecular evidence is being used to analyze amino acid sequences and other biochemical similarities, which allows for a more precise comparison of organisms.
Answers
Answer:
C.
Improved technology is being used to analyze the shapes of fossilized bone, which allows for a more precise comparison of organisms.
Explanation:
The system for the classification of organisms is subject to change because molecular evidence is being used to allow a more precise comparison of organisms (Option D).
Sequences homo-logy refer to the similarities between nucleotide (either DNA or RNA) and amino acid protein sequences between evolutionarily related organisms.Sequence homo-logy can help to trace the evolutionary origins of species and thus classify and/or compare them.Molecular evidence involves using local and multiple alignments between homo-logous sequences in order to make comparisons between species.In conclusion, the system for the classification of organisms is subject to change because molecular evidence is being used to allow a more precise comparison of organisms (Option D).
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ASAP!!! An example of maintaining homeostasis at the system level would be _____.
endocytosis and exocytosis of substances
breathing faster while jogging
the liver stores excess sugar molecules
Answers
Answer: C) the liver stores excess sugar molecules
Explanation:
If the blood glucose level is too high (ie there's too much sugar in the bloodstream), then the liver will store excess sugar molecules to be released later when the sugar level drops too low. Think of it like storing sugar for a rainy day. Homeostasis in this case is the balancing act of keeping the glucose level at just the right amount.
Which of the following is a result of a limiting factor in an ecosystem?
A
A pond has only produced a small amount of algae, so the fish population is also
small.
B
The weather was extra humid last summer and there were more mosquitos than
ever before.
с
A farmer planted new grass and months later his animals looked healthier than
they've looked in years.
D
This year, ticks are supposed to be worse than in previous years, with a huge
number of them carrying Lyme Disease.

Answers
Answer:
A
Explanation:
Which of the following measurements corresponds in width to
that of the highlighted cell?
O 135 um
O 0.9 mm
O 45 um
90 um
Answers
Which of the following structures demonstrates the highest level of organization in organisms?
Nerve cell
Muscle tissue
Small intestine
Endoplasmic reticulum
Answers
Answer:
Its the small intestines.
Explanation:
It would go:
Endoplasmic reticulum
Nerve cell
Muscle tissue
Small Intestine
In what way is a cell membrane selective?
Answers
Answer:
The membrane is semipermeable or selectively permeable because it does not permeate all molecules.
Explanation:
Permeability is, in fact, the ease with which a dissolved particle passes through the membrane, which depends on both the properties of the particles and the properties of the membrane itself.
The cell membrane has the role of a barrier that separates the intracellular space from the extracellular fluid, but at the same time, it must enable the selective passage of molecules and ions into and out of the cell.
What stresses does a spacecraft experience when re-entering Earth’s atmosphere?
Answers
Answer:
When an object enters the Earth's atmosphere, it experiences a few forces, including gravity and drag.
Explanation:
Spacecraft re-entry is tricky business for several reasons. When an object enters the Earth's atmosphere, it experiences a few forces, including gravity and drag.
What are the ONLY type of cells can pass on a mutation?
Answers
Answer:
Gametes
Explanation:
The cells that make an organism, and therefore pass on DNA from the parent to the next generation, are the egg and sperm cells, also called the gametes.
Egg and sperm cells are haploid, which means when they fuse, they make a diploid cell. This cell produces all the cells in the body of a new organism.
Only mutations that occur in these cells will make it to the offspring. If a mutation occurs, for example, in the skin cells or brain cells, they might affect the individual, but they will not be passed on to the next generation.
the correct order of blood flow through the body starting with blood in the Right Atrium
Answers
Answer:
69
Explanation:
Answer:
1. Deoxygenated blood enters through the inferior or superior vena cava
2. This deoxygenated blood enters the Right Atrium
3. The Tricuspid Valve opens and the deoxygenated bloods moves through to the next chamber
4. The deoxygenated blood flows into the right ventricle
5. The blood then goes through the pulmonary artery to the lungs
6. In the lungs the carbon dioxide is dropped off and the oxygen is picked up
7. The oxygenated blood returns to the heart through the pulmonary veins
8. The blood empties into the left atrium
9. The bicuspid valve opens and blood flows through the left ventricle
10. The oxygenated blood enters the aorta where it is then pushed to the rest of the body’s cell
Explanation:
help my theacher is stupit
Answers
Answer:
I'm pretty sure the answer is A
The picture shows a model of a cell what is the main function of the part labeled y in the model
Answers
Answer:
the part that is labeled y helps the plant get water, since plants arent like us they need to have something in their cell to help them get water because they can't just get up and go get a drink like us.
Answer:
To provide the cell with energy for its activities
Explanation:
Which of the following is a normal constituent of urine? (choose all that apply)
a. urea
b. water
c. creatinine
Answers
Answer:
A and C
Explanation:
did this question before and got it correct
In humans, the allele for dimples (D) is dominant to the allele for no dimples (d). If
two people who are heterozygous for the trait have children, what are the
predicted phenotype ratios of their offspring? (Hint: Make a Punnett square on
scratch paper.)
All will have dimples
3 dimples : 1 no dimples
1 dimples ; 3 no dimples
2 dimples : 2 no dimples
Answers
the answer is attached in the picture
WILL GIVE BRAINLIEST!!
Life cycles found in vascular plants are variations of the___________ life cycle.
gametophyte
sporic
sporophyte
Answers
Life cycles found in vascular plants are variations of the GAMETOPHYTE life cycle
Answer:
★ Life cycles found in vascular plants are variations of the SPORIC life cycle.
Explanation:
Hope you have a great day :)
Technology has improved the accuracy of weather
forecasts in two ways. Please write one of those ways
for your answer.
Answers
Answer:
better way to analyze data, improve workfkow, improve production process
Equilibrium is attained when ____.
A. the concentration of solutes is equal throughout a solution.
B. There are no solutes remaining within the cell
C. all solutes have moved from one area to another
Answers
Answer:
a
Explanation:
Which diagram below shows DNA from a haploid nucleus
PLEASE HELP
A
B
Nethier shows a haploid nucleus
Answers
The answer is B
identify the error that occurred in meiosis ll
Answers
C)Homologous chromosomes failed to separate, resulting in nondisjunction.
3. What is an adaptive trait?
Answers
Answer:
A trait is an aspect of the whole or of a certain portion of the developmental pattern of the organism. An adaptive trait is, then, an aspect of the developmental pattern which facilitates the survival and/or reproduction of its carrier in a certain succession of environments.
Explanation:
