Yasmine is asked to describe the structural organization of chloroplasts. She writes the following sentence:
"A chloroplast contains thylakoid stacks, called stroma, that are surrounded by fluid-filled grana."
Which change to the sentence is necessary to make the sentence accurate?
A. Replace "grana" with "chlorophyll."
B. Replace "stroma" with "chlorophyll."
C. Exchange the positions of "stroma" and "grana."
D. Exchange the positions of "thylakoid" and "stroma."
Answers
Answer:
C. Exchange the positions of "stroma" and "grana."
"A chloroplast contains thylakoid stacks, called grana, that are surrounded by fluid-filled stroma."
Explanation:
A dynamic biochemical process, photosynthesis, occurs within the chloroplasts of plants. Here, to form stable carbohydrates, light energy is transformed into chemical energy.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Chloroplasts are tiny, highly-folded, membrane-bounded organelles containing enzymes, pigments and other molecules that mediate photosynthesis. In the stack of grana, pigments like chlorophyll, absorb light energy for the light-dependent reactions.
Related Questions
The high-energy batteries from the question above are used to power another very important reaction in photosynthesis. What is the reaction?
Answers
Answer:
This question is incomplete but it can be answered based on general understanding.
The reaction is CALVIN CYCLE OR LIGHT-INDEPENDENT REACTION
Explanation:
The high energy batteries being referred to in this question IS ATP. ATP is an energy-storing molecule produced in the first stage or reaction of photosynthesis called LIGHT DEPENDENT REACTION. Photosynthesis, which occurs in two stages, produces ATP molecule in the first stage as a result of the charging of ADP into ATP.
The ATP molecule, which serves as a high energy battery, is used to power the second stage of photosynthesis called LIGHT INDEPENDENT REACTION OR CALVIN CYCLE in order to yield sugars.
In the picture how does the thermal energy definitely flow?
Answers
Answer:
from the bears to the snow
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7. Which of the following is a physical change in matter that takes
place in the digestive system?
Answers
Answer:Mechanical digestion physically breaks down food, like when teeth macerate food into a bolus. The stomach contracts and relaxes in a churning motion. ... Chemical digestion occurs when the bonds within larger food molecules are broken, creating smaller molecules that the body can use.May 30, 2017
Explanation:
Which structures are part of the body's first line of defense against pathogens?
Answers
Answer:
Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens.
Explanation:
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The light dependent reaction takes place in the
Answers
Thylakoids membrane
Explanation:
Photosynthesis occur in chloroplast.
Light dependent reaction take place in the thylakoids membrane.
Dark reaction (Calvin cycle) take place in the stroma
Answer:
Thylakoid
Explanation:
each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
Describe the interaction between an enzyme and it’s substrate
Answers
Answer: The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur.
When you breathe out, carbon dioxide passes from the what
into the air.
Answers
Answer:
Lungs
Explanation:
This is when oxygen has been taken into the blood carbondioxide is then exchanged
Answer:
blood
When you _________, carbon dioxide and water pass from the blood out into the air.
Explanation:
what will be the consequence if humans continue to over-hunt elephants for their ivory
Answers
Answer:
Extinction
Explanation:
Answer:
extinction if they are hunted so much
Could I pls get help??
Answers
Answer:
The answer is E
Explanation:
A cell model demonstrates it's organelles and shape.
A person has trouble coordinating muscle movements. Which two tissues could be injured?
O Connective; epithelial
O Epithelial; muscle
Nervous, muscle
O Cardiac; epithelial
Answers
Answer:
connective; epithelial
Explanation:
Energy-storing sugars are made during the __________ in photosynthesis.
Answers
Answer:
Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.
Explanation:
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Plants and other living things use photosynthesis to convert light energy into chemical energy, which is then released via cellular respiration to power the organism's activities.
How does sugar get its energy from photosynthesis?Plants use their leaves to capture light energy during photosynthesis. Water and carbon dioxide are converted by plants into a sugar called glucose using the power of the sun. Plants use glucose as a source of energy and to create other compounds like cellulose and starch.
Light, water, and carbon dioxide (CO2) are converted into energy and sugar inside the chloroplasts of leaves (glucose). Sunlight is transformed into energy-storing molecules in the plant cells using water. These molecules' energy is subsequently utilised to convert CO2 into glucose.
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What is the answer? Please
Answers
Answer:
1. nucleus
2. nucleolus
3. cell membrane
4. cytoplasm
Explanation:
What statement best demonstrates that gene expression is regulated?
Answers
Answer:
Cells protect their DNA by enveloping it in a nucleus
Explanation:
All of the following are methods for non-native species to move into a new community EXCEPT:
Migration
Ballast water of ships
Pet trade
evolution
Answers
True or false, all solids are hard
True or false, words used to describe solids are called properties
True or false, liquids take the shape of the container they are in
True or false, liquids are suck down by temperature to the bottom of the container
True or false, when you move a liquid to another container the volume changes
True or false, the temperature at which a solid turns into a liquid is the freezing point
True or false, surgical spirits and ice are solid at room temperature
True or false, the melting point of water is 0°C
True or false, a solid keeps its shape, well liquids have no fix shape or volume
True or false, a solid keeps its shape, well liquids have no fixed shape or volume
True or false, gases Will spread out to fill a container or just keep spreading around
True or false, gases have weight because they are affected by gravity
True or false, in a solid the particles are packed tightly together and vibrate quickly
True or false, as a solid heats up, particles move more quickly and take up more space
True or false, as a solid is heated up eventually eventually cannot keep it shape and becomes a gas
True or false, dissolving solids and liquids creates a solution
True or false, dissolving is when the solid particles disappear from sight
True or false, if it’s all it is dissolved, it can be retrieved by freezing liquid
True or false, when you combine a solid and a liquid dissolving always takes place
True or false, water boils it 100°C ( 212°F ) with bubbles of air
True or false, you need to give water heat (thermal) Energy to turn it into a gas
True or false, changing the amount of heat energy does not change how fast water changes states
True or false, the Gaseous state of water is called water vapor
True or false, lighting a match is a reversible change
True or false, changing boiling water to ice cubes can be reversed
True or false, cooking an egg is a nonreversible change
Answers
Answer:
for example when you have an ice it is soild
what activity makes water came to the surface?
Answers
Answer: Surface water is water located on top of the Earth's surface such as rivers, creeks, and wetlands. This may also be referred to as blue water. The vast majority is produced by precipitation and water runoff from nearby areas.
Explanation:
Plsss anyone wanna help?
Answers
Answer:
I believe E is the correct answer..
Explanation:
Look at a cell model online. What does it show you? It's organelles and it's shape.
Which of the following is NOT a common problem associated with inorganic fertilizers?
O They are often subject to leaching
O They can dry out, or desiccate, seedlings and young plants
O They may release insufficient nutrients and can deplete nitrogen in the soil
They can cause toxic residues to appear in conventionally grown fruits and vegetables
Answers
Answer:
They can cause toxic residues to appear in conventionally grown fruits and vegetables
Explanation:
Since inorganic fertilisers are made with chemical and such, they should not produce toxins.
Overuse of inorganic fertilizer destroys the physical characteristics of soil, hence, option d toxic more in conventionally grown vegetables and fruits is correct.
What are the problems associated with inorganic fertilizers?Many, such as anhydrous ammonia, urea, urea-ammonium nitrate solutions, triple superphosphate, ammonium phosphates, and potash muriate, can be administered directly (potassium chloride).
Compound fertilizers are chemical or physical blends of pure ingredients. As a result, excessive use of inorganic fertilizers has resulted in soil and air.
Water pollution due to nutrient leakage, soil physical features deterioration, toxic chemical buildup in water bodies, and so on, as well as serious environmental concerns and biodiversity loss.
Therefore inorganic fertilizers can cause toxic residue to appear in fruits and vegetables, hence option d is correct.
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Which of these is most likely to be true of an urban community ?
Answers
Answer:
An urban community has buildings. An urban community has more air pollution than other types of communities.
James wants to know which brand of shoe will help him run faster. He thinks the more expensive shoe should be the one that helps him run faster. He tries three different types of running shoes. He runs one lap on the track with pair of shoes ( shoe A) and times how long it takes. He rests for 15 minutes. Then, he tries on another of shoes (shoe B) and runs a lap around the track, while timing how long it takes. He rests for 15 minutes before repeating the lap with the last brand of shoes (shoe C).
Which type of investigation did he complete ?
a.)experimental
b.)descriptive
c.)observational
Answers
Answer:
C.) Experimental
Explanation:
He conducts test to see which shoe helps him better, in so doing a experimental investigation
Salivary amylase begins the process of carbohydrate digestion in the mouth. The activity of salivary amylase is halted in the stomach because:_______
Answers
The acidic environment in the stomach stops the action of the amylase enzyme.
The stomach will secrete digestive juice that contain hydrochloric acid and digestive enzyme such as pepsin to digest protein.
The HCL create an acidic environment that will deform the ionic and hydrogen bond of the amylase which cause the enzyme to be denatured.
The activity of salivary amylase is halted in the stomach because of its
acidic pH.
The salivary amylase reacts with starch in the mouth and starts the process
of breaking them down. When it gets to the stomach, the action stops after
some minutes as a result of a change in pH as enzyme performs optimally
when at a suitable pH or temperature.
The acidic pH of the stomach inactivates the salivary amylase and the
gastric amylase in the stomach continues with the process.
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Can coal ever be truly a clean-burning fuel?
Answers
Answer:
Yes it can
Explanation:
The process of ecological change in a community over time
Answers
Answer:
Ecological succession is the process of change in the species structure of an ecological community over time. ... It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat.
Explanation:
!Urgent!
If you were to examine a plant or animal cell under a microscope, what phase of the cell cycle would you most likely see? Explain your reasoning.
Answers
Answer:
Explanation:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
If you were to examine a plant or animal cell under a microscope, you would most likely see the interphase of the cell cycle. This is the resting phase.
What is the cell cycle?The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next. The cell cycle can be divided into two phases. They are as follows:
InterphaseM-phase (Division phase).During the interphase of the cell cycle, the cell undergoes normal growth processes with the replication of DNA in the synthesis phase. Chromosomes are observed in a little bit condensed state during the mitotic division.
Apart from this, cells do not undergo many series of alterations. It follows the path of rest, and hence it is known as the resting phase. Chromatin is somehow observed in a condensed state loosely distributed throughout the nucleus of the cell.
Therefore, the interphase of the cell cycle would you most likely see, when you were to examine a plant or animal cell under a microscope.
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A student does an experiment for a science fair to study whether temperature affects the timing of a cricket's chirps. The student keeps a cricket in an enclosed box that is heated to different temperatures each day for twelve days. The student records the cricket's chirps by using a sound-activated microphone so the timing of the chirps can be measured. Which is the dependent variable in this experiment? O size of the box O temperature of the box O timing of the cricket's chirps O volume of the cricket's chirps Save and Exit Next Submit Mark this and return
Answers
Answer:
the timing of the cricket's chirps
Explanation:
What organisms would be found in this biome?
A) vines, ferns, and sloths
B) sedge, arctic hares, and arctic foxes
C) cacti, lizards, and bats
D) cedars, pine trees, and warblers
Answers
Answer:
im thinking its C
Explanation:
Answer:
The answer is B, sedge, arctic hares, and arctic foxes
Explanation:
What are the symptoms and incubation period of an infection by the microbial agent?
Answers
Answer:
Explanation: A person with a bacterial infection will often experience redness, heat, swelling, fever, and pain at the site of infection, as well as swollen lymph glands. A rash can indicate a fungal infection of the skin. However, viruses and bacteria may also cause skin conditions and rashes. While the incubation period is 2-10 days, average 3-4 days or sometimes a week.
the soil matter formed by decade organic matter is called
Answers
Answer:
the soil matter formed by decade organic matter is called humus.
The cell wall gives the cells...
-Structure
-Energy
-Protein
-Photosynthesis
Answers
4. The green area that shows the difference between the BR and DR in stages
2&3 is also know as
