What molecules diffuse through the cell membrane without the use of energy and are required as reactants in photosynthesis?
A.glucose and oxygen
B.water and oxygen
C.glucose and carbon dioxide
D.water and carbon dioxide
Answer:
c
Explanation:
If the substances can move across the cell membrane without the cell expending energy, the movement of molecules is called passive transport. Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O 2) and carbon dioxide (CO 2)
The diagram below represents a plant cell in tap water as seen with a compound light microscope.
Which diagram best represents the appearance of the cell after it has been placed in a 15% solution for two
minutes?
SOS
(1)
(2)
(3)
(4)
Answer:
(3)
Explanation:
I believe 3 would be the answer here because when interacting with a salt solution, plant cells will look like that. Hope this helped!
Diagram 3 of the cell will represents cell's appearance after being kept in 15% salt solution.
This will happen because of exosmosis in which the water will move out of the cell causing to to get shrink called plasmolysisWhat is osmosis?It is the process of movement of solvents through a semi- permeable membrane from region of lower solute concentration to higher solute concentration.
There are three types of osmosis:-
Isotonic:- The solutions bring compared have equal concentration of solutesHypotonic:- The solution with lower concentration of solutesHypertonic:- The solution with higher concentration of solutesTo know more about osmosis here
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In __________ ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.
Answer:
prokaryotes
Explanation:
All cells translate using ribosomes. Prokaryotic DNA lacks a nucleus, therefore translation happens before transcription. Simultaneous transcription and translation takes place.
What is translation in prokaryotes?In all cells, translation takes place at ribosomes. Prokaryotes translate DNA before transcription is finished because their DNA is not bound by a nucleus. Both transcription and translation take place at once. When a start codon on mRNA attached to a small ribosomal subunit is recognized by an initiator tRNA anticodon, translation can start. A second tRNA is recruited as the big ribosomal subunit joins the tiny subunit.
This is not conceivable in eukaryotes because translation takes place in the cytoplasm outside of the nucleus, whilst transcription takes place in a membrane-bound nucleus.
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Which of the following structures is unique to meiosis?
A) Spindle poles
B) Centrosomes
C) Spindle microtubules
D) Tetrads
E) Kinetochores
how are neurotransmitters and hormones similar and how are they different?
Answer:
Both neurotransmitters and hormones influence our thoughts and motivations, as well as our ability to learn and concentrate. However, neurotransmitters are short-lived while hormones act for longer periods of time.
Describe solar energy:
Answer: the light and heat that come from the sun
Explanation:
That’s it lol
What is the average beak depth of the current finch population?
in your opinion, do you believe globalization of the automobile industry is good for
the American Economy or does it pose a threat to the American Economy Explain
you answer
It can be deduced that the globalization of the automobile industry is beneficial to the American economy.
Globalization simply means the process by which businesses develop international influence or begin its operations on an international scale.
The globalization of the automotive industry is important as it led to ba increase in the number of vehicles that's were imported into the country.
Globalization gives more individuals personal freedom and access to jobs. This also led to the development of better roads and transportation.
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WIll GIVE BRAINLIEST!!!!
Answer:
Both A and B
Explanation:
This was on my test today and I got it correct.
How does energy flow in an ecosystem
Answer:
Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.Hope this helps you !!What is the name of the column of neurons within the medulla that initiates neural impulses for inspiration and expiration
Which cellular process would be affected first if the structure labeled 3 were
destroyed?
Answer:
Photosynthesis
Explanation:
asked my teacher
3. Name the division of the peripheral nervous system that is activated in each of these
examples:
a. You are startled when a friend pulls a practical joke and spooks you with a loud sound.
b. You move your arms and legs to take an evening walk.
c. Your stomach makes a gurgling sound as it digests your lunch.
d. Feeling a little stressed? You take a few breaths to calm down.
e. You are at the line, waiting for you race to start, and your heart begins to pound.
A startle reflex (a), digestion (c), breathing (d) and heart pumping (e) are responses of the ANS, while arm/leg movement (b) is a response of the SNS. They are major divisions of the PNS.
The peripheral nervous system (PNS) serves to connect the central nervous system to different organs, limbs, and skin.
The PNS can be divided into Somatic Nervous System (SNS) and Autonomic Nervous System (ANS).
The Somatic Nervous System is responsible for controlling the voluntary movements of the body.
The Somatic Nervous System is responsible for regulating the involuntary movements (reflexes) of the body.
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what is the potential energy of a 10kg object sitting on a 2.5m high cliff
Answer:
245.1663 Joules
Explanation:
Use the potential energy formula which is U=mgh
Where m=mass in Kg
g=gravitational acceleration: 9.80665 m/s^2
and h=height in meters
notice or perceive
e. Observe:
f. Infer:
g. Repetition:
h. Replication:
i. Data
Answer:
Try e. Observe for an answer
My Octopus Teacher
How does the filmmaker know when trust is obtained with the octopus?
Answer: Huh ?
Explanation: What is an octopus teacher ???
11. Approximately how much of Earth's fresh water is trapped in glacial ice?
O A. 70 percent
OB. 10 percent
O C.30 percent
O D. 90 percent
Answer:
A. 70 percent
what are ways in which carbon is released into the atmosphere?
Answer: Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
During primary succession, an ecosystem cannot 're-build' with large trees and bushes. Explain.
Describe an approach for understanding global systems and the changes they undergo
IN UR OWN WORDS
ill give brainliest if its in ur own words
50 points :)
Answer
To understand the global systems and the changes they undergo in a better way, we can use a model to represent the various ecological processes that occur within the biosphere. One example of a model that we can use is the earth systems model. It can show the causes and effects of global change to provide us with insights and learning about the global system as a whole.
Explanation:
Answer:
To be able to understand global systems and their changes first we must survey them before and relook at the systems and analyze how they have changed and what caused these changes.
Explanation:
Which is the most likely explanation for the change?
Answer:
a beetle population moved to a greener habitat.....
bennett is a 12-year-old boy whose bmi-for-age falls at the 90th percentile on the bmi-for-age growth chart. bennett is
Answer:
bennett is a 12-year-old boy whose bmi-for-age falls at the 90th percentile on the bmi-for-age growth chart. bennett is
Explanation:
bennett is a 12-year-old boy whose bmi-for-age falls at the 90th percentile on the bmi-for-age growth chart. bennett is
what allows a viral disease to be incurable?
Answer:
Antiviral drugs are only effective on a few viral diseases, such as influenza.
Explanation:
when a cell is in anaphase what happens to the dna?
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.Explanation:
Which ion/molecule in the saliva allows you to taste sugar as sweet? A. Hydrogen ions B. Sodium ions C. Glucose D. Alkaloid molecules
Answer:
C. glucose
Explanation:
the presence of energy-rich carbohydrates, such as glucose, which increases the hedonic tone of food and strongly influences our eating behavior.
mitosis is the only type of cellular division in which:
Answer:
itosis is a process where a single cell divides into two identical daughter cells.
Explanation:
Mitosis is the only type of cellular division in which number of chromosomes is maintained
What is mitosis?During the phase of the cell cycle known as mitosis, duplicated chromosomes are physically split in half to form two new nuclei. Mitosis is a method of cell division that results in the production of cells that are genetically similar and in which the total number of chromosomes is preserved. Since this occurs during mitosis, the process is often referred to as equational division.
Mitosis serves a very vital purpose in living creatures, and one of its functions is the regeneration and replacement of worn-out and damaged tissues. Mitosis contributes to the generation of identical copies of cells and, as a result, assists in the process of healing damaged tissue or replacing cells that have been worn out.
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what is the difference in solubility of triglyceride and the products of their hydrolysis
Answer: Triacylglycerols are the major constituents of oils and fats of both plant and animal origin.
Explanation:
Hope this helps.
The products of hydrolysis of triglycerides are fatty acids and glycerol. While fatty acids, like triglycerides, are insoluble in water, glycerol is soluble in water.
Why are triglycerides insoluble?Triglycerides are esters of fatty acids and alcohol, mostly glycerol. The fatty acid chains are inked to the glycerol molecules with the help of covalent bonds.
This means that the triglyceride molecule is uncharged and will therefore remain insoluble in water but soluble in organic solvents.
Also, products of hydrolysis of triglycerides are fatter acids and glycerol. While fatty acids will remain insoluble in water, glycerol is soluble in water.
Glycerol is alcohol with 3 hydroxyl groups, this is why it is also called a polyol. They are able to hydrogen bonds with the nearby water molecules.
Therefore, triglycerides and fatty acids are insoluble and glycerol is soluble in water.
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Which of the following is a method used to prevent soil depletion? (2 points)
Dune fences
Contour farming
Adding fertilizers
Planting grasses on slopes
Answer: The answer is B
Chlorophyll creates___
and recycle oxygen.
Answer:
sugary carbohydrates
Explanation:
Chlorophyll captures the sun's rays and creates sugary carbohydrates or energy during photosynthesis which allows the plant to grow.
PLEASE HELP!!
Gastric secretion would include all of these except
A. pepsinogen
D. mucous
E. gastrin
C. CCK
B. HCl
Answer:
C. CCK
Explanation:
Gastric juice contains pepsinogen, HCl, mucus, rennin, and gastrin hormone.
Cholecystokinin (CCK) is secreted by I-cells of duodenum.