Answer:
When light energy reaches the pigment molecules, it energizes the electrons within them, and these electrons are shunted to an electron transport chain in the thylakoid membrane.
Explanation:
During photosynthesis, light absorbed by plant is used for energizing electrons for an electron transport chain to take place in thylakoid membrane.
What is photosynthesis?Photosynthesis is defined as the process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.
Some of the energy which is converted is stored in the form of molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the percent of oxygen in earth's atmosphere.
The process begins with proteins absorbing light energy which are called reaction centers and have a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles which are called chloroplasts while in bacteria they are present in plasma membrane.
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You are inserting your gene of interest into the Lac Z gene in a plasmid also containing a tetracycline resistant gene. You plate your transformed bacteria on media containing tetracyline and X-gal (the LacZ substrate that can form a blue dye). What results would indicate a clone with recombinant plasmids?
Answer:
A white colony in tetracyline plates
Explanation:
Beta-galactosidase (also known as beta-gal or β-gal), will not be produced if a gene was cloned into the Lac Z gene. It is because β-galactosidase is produced by the activation of the lacZ gene, and thereby β-gal can not be produced in the absence of this lac operon. In consequence, X-gal will not be hydrolyzed by the β-gal enzyme in a reaction that releases a blue pigment, and thus the colony will be white. In gene cloning, X-gal enables to determine whether a cell is expressing a functional β-gal enzyme, which is known as the "blue/white screening method".
Based on the internal and external solute concentrations, do you think the paramecium will swell up or shrink in this solution? Explain your reasoning.
Answer:
Depending on the external and internal solute concentrations, the paramecium will either, shrink, remain the same size or swell.
If the external solute concentration is less than internal solute concentration, the paramecium will swell.
If the external solute concentration is equal to the internal solute concentration, the paramecium will remain the same in size.
If the external solute concentration is greater than the internal solute concentration, the paramecium will shrink.
Note: The concentrations of the external and internal environments were not given.
Explanation:
When two compartments containing solutions are separated by a semipermeable membrane, by means of osmosis, water can move in or out of a compartment depending on the concentration of solutes in either compartments.
In a cell such as a paramecium, the cell membrane serves as a semipermeable membrane.
If the concentration of solutes in both the internal and external environment are the same, there is no net movement of water molecules, and the solutions are said to be isotonic.
If the concentration of solutes in the external environment is greater than the internal environment, water molecules moves out from the internal to external environment, and the paramecium shrinks in size.
If the concentration of solutes in the external environment is less than the internal environment, water molecules moves from the external into the internal environment, and the paramecium swells up in size.
Babies that hatch out of the egg with eyes wide open, fully feathered, and able to run around and find food in minutes are called
Answer: The question is incomplete and options are not given, here are the options.
A. Atricial
B. Precocial
C. Hyperbole
D. Hyperactive.
The correct option is precocial.
Explanation:
It is precocial because it is the ability of new hatched birds with full feathers and eye open to be able to move around and find food after been hatched from the egg. It is common in birds and it is gotten from Latin word called precoccous. Some newly hatched birds can be able to mobilise around minutes after hatching and search for food while some cannot move around minutes after hatching to search for food, this type of birds are called Altricial.
What is the process when plates move apart from each other?
Group of answer choices
convergent plate boundaries
divergent plate boundaries
transform plate boundaries
subducting plate boundaries
Answer:
divergent boundaries is the correct answer
What is the optimal pH for Gastric Protease?
Answer:
1.0–2.0
Explanation:
The optimum pH for pepsin activity of 1.0–2.0 is maintained in the stomach by HCl. When the pH of the medium increases to values greater than 3.0, pepsin is almost completely inactivated. In young children, gastric acidity is usually higher than in normal adults.
Answer:
4.0 - 5.0 pH is optimal for Gastric protease
Explanation:
The bond in table salt (NaCl) is Select one : O A. polar O Bionic O C. covalent O nonpolar
Answer:
A
Explanation:
NaCl posseses a polar ionic bond
However if your option B is actually "ionic" not "bionic", the answer is B
ANSWER THIS CORRECTLY AND ILL GIVE YOU 70 POINTS!
What characteristics of organisms does the Linnaean system of classification
use to give organisms their specific name?
O environmental
O genetic
O evolutionary
O physical
Answer:
nothanks
Explanation:
genetic I think
Explanation:
The cells that make up our body are known as
(1 Point)
a. Sex cells
O b. Germ cells
O c. Prokaryotic cells
O d. Somatic cells
How are euglena and kelp alike and different?
Answer:
ALIKE: plant-like protists with chloroplast
DIFFERENT: euglena is a single celled alga and uses flagellum to move from place to place. Kelp is a multicelled alga
Explanation:
Explanation:
Euglena and kelp are alike because, both are plantlike protist with chloroplasts, they can make their own food. Euglena and kelp are different because euglena are single-celled and kelp have many cells
Host(s): From the virus's perspective, why is the host important?
Answer:
The host allows the virus to replicate.
the process of dna to rna is called
Answer:
hiii
Explanation:
The process by which DNA is copied to RNA is called transcription, and that by which RNA is used to produce proteins is called translation. DNA replication Each time a cell divides, each of its double strands of DNA splits into two single strands.
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Answer:
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). Together, the transcription factors and RNA polymerase form a complex called the transcription initiation complex.
Explanation:
Because its in our bodies.
How has pliable whale bone been used over the centuries?
Answer:
Many of the baleen eyeglass frames seen in advanced collections probably date from the late 17th to the very early 19th century. ... Whalebone is easy to carve and shape since it has a pliable almost plastic-like property. As such it was used in various manufacturing industries as a forerunner of plastic.
Explanation:
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Which best represents the process of science?
researching materials for a bridge design
collecting data on the behavior of predators and prey
reviewing data on the performance of a vehicle
designing a new microscope
The process of science that represents best is collecting data on the behavior of predators and prey.
How will you do define science?Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old.
Moreover, science is a way of knowing about the world. At once a process, a product, and an institution, science enables people to both engage in the construction of new knowledge as well as use information to achieve desired ends.
Hence, science is a broad career field with many specialties and areas of study. The three main branches of science are physical science, earth science and life science, and they each have different career applications.
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2. What is Systema Naturae? Who wrote it and when?
Answer:
Linnaeus's Systema Naturae. Carl von Linné, or Carl Linnaeus (1707–1788) was a Swedish physician, botanist, and zoologist who created a new system of classification for all living things. His first attempt at classifying plants and animals was published in 1735 as Systema Naturae.
Explanation:
Answer:
Systema Naturae is one of the major works of the Swedish botanist, zoologist and physician Carl Linnaeus and introduced the Linnaean taxonomy.
It was written by Carl Linnaeus
It was written in 1735
Explanation:
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When a germ cell undergoes meiosis, which event would MOST likely result in four aneuploid daughter
cells?
O
A. misalignment of the chromosomes during metaphase I
B. misalignment of the chromosomes during anaphase I
O C. misalignment of the chromosomes during metaphase II
D. misalignment of the chromosomes during anaphase II
Answer:
misalignment of the chromosomes during anaphase II
Define the word ubiquitous and provide examples showing why this is an appropriate term to use while describing microbes
Answer:
They are found everywhere on the planet. Microbes are the most abundant organisms found in every region and environment on Earth.
Explanation:
Ubiquitous means present or found everywhere. Microbes, are the most abundant organisms on Earth, also called microorganisms. There are several types of microbes, usually classed as protists, protozoa, algae, bacteria, viruses, and fungi.
As integral parts of our ecosystems, they are essential in their roles as producers, consumers, and decomposers and are capable of inhabiting a wide range of climates and niches- from the hottest volcanoes, icy tundras to the deepest regions of the ocean. Microbes are also essential to macro-organisms; in humans, they aid in the digestion of food and maintain gut health. Additionally, microbes can be used in the production of food, medicine, fuel, and other biotechnological applications.
7. You looked at four different plant cells specimen today. Which specimens
did not contain visible chloroplasts?
Answer:
cloroplast ligma cardinal crisus
Explanation:
The specimen that does not contain visible chloroplasts is fungi.
Chloroplast simply refers to plant cell organelles that are vital in the conversion of light energy to chemical energy through photosynthesis.
The function of chloroplast is to allow plants to capture the energy that is gotten from the sun. Based on the information, the specimen that does not contain visible chloroplasts is fungi. Fungi have cell wall and nucleus but no chloroplast.
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In order to analyze DNA found at the crime scene it has to be extracted from the cells.
Answer:
yes
Explanation:
Answer: In an instance where the crime scene offers a clear source of DNA (blood, urine, saliva, and samples on steering wheels, etc.), the sample can be collected using a swab. After putting on protective gloves, remove the swab from its wrapper, taking precautions to touch only the handle
Describe the relationships between density and crust subduction
Answer:
Stable subduction zones involve the oceanic lithosphere of one plate sliding beneath the continental or oceanic lithosphere of another plate due to the higher density of the oceanic lithosphere. This means that the subducted lithosphere is always oceanic while the overriding lithosphere may or may not be oceanic.
Explanation:
What is a difference between prokaryotes and eukaryotes cells
Answer:
The main difference between eukaryotic and prokaryotic cells is defined by the presence of true nucleus and most organelles in the eukaryotic cell, which do not possess prokaryotes.
Explanation:
Cells are the simplest expression of living beings —the structural and functional unit— and are classified, according to their complexity, into prokaryotic and eukaryotic cells.
Prokaryotic cells are simple cells that lack a nucleus -so their genetic material is dispersed in the cytoplasm- and most of the organelles. This cell type is unable to become a specialized cell or to group together to form tissues, so it is only found in single-cell organisms, such as bacteria.
On the other hand, eukaryotic cells have a true nucleus —where DNA is found— all organelles, can differentiate and group together to form tissues. This latter property makes them suitable for forming multicellular organisms.
What is the answer for this plz????
Answer:
Alkali metals are any of the elements found in Group IA of the periodic table (the first column). Alkali metals are very reactive chemical species that readily lose their one valence electron to form ionic compounds with nonmetals. All elements in the alkali metal group occur in nature.
Explanation:
Answer:
alkali metals are the most reactive metals found on group 1A on the periodic table
Explanation:
lithium
DNA sequence AAT GTA CTG CAG C what is the new RNA sequence?
Answer:
UUA CAU GAC GUC G
Given the base sequence AGCTTCGATCG on a DNA strand, what is the base sequence of the complementary DNA strand?
The complementary bases come in pairs:
A (adenine) - T (thymine)
G (guanine) - C (cytosine)
So....
A G C T T C G A T C G
T C G A A G C T A G C
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A sedimentary rock containing a fern fossil was found. What does this tell about the area at the time the rock was formed
the area was hot
the area was covered by an ocean
the area was cold
the area was on land
Answer:
D) The area was on land.
Explanation:
We can tell that this is the answer because of the process of elimination.
- It is not A or C, because there is not enough information given to us to determine whether the area was hot or cold.
- It is not B, because ferns do not grow in the ocean. (Unless it a specific type of water fern that have not heard about... but this is highly unlikely, so don't worry.)
- This leaves us with: D) The area was on land. This is the correct answer because ferns do grow on land, and a sedimetary rock containing a fern fossil is much more likely to be found on land than on the ocean floor.
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According to cell theory, which of the following are made of cells? Check all that apply.
According to the cell theory all living things are made of cells.
What is the cell theory?Modern cell theory
Theory that cells are the basic structural, functional, and organizational units of both single-celled and multicellular organisms; cells divide and pass on hereditary information; and energy flows within cells.
Thus, all living things are made of cells.
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Click and drag the labels into the appropriate box to identify whether the function of the connective tissue component of a muscle is
definite or theorized
one the muscle
Prevents the muscle
Surrounds a single
Answer:
surrounds a single
Explanation:
As invasive species, how does the introduction of the feral pig and the water hyacinth impact an ecosystem? (Site 1)
Answer: invasive species can bring harm to wildlife. a new species means it won't have predator to control the population within the ecosystem. ferral pigs will eat anything including native birds competing with wildlife for food. spreading disease to live stock and humans. spreading e-coli
water hycinth forms dense mats in wild reducing sunlight for submerged plants. crowding out native aquatic plants.
Explanation:
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Invasive species can undermine an ecosystem's natural resources and put human usage of those resources in danger.
What are natural resources ?Natural resources are things that come from the Earth and are used to sustain life and satisfy human needs. A natural resource is any natural substance that people use.
Aquaculture species can be released intentionally or accidentally, as well as through aquarium specimens or bait, oceangoing ships' ballast water, aquarium specimens, and other methods.
So, Invasive species can undermine an ecosystem's natural resources and put human usage of those resources in danger.
Invasive species have the ability to wipe out native species, reduce biodiversity, compete with native species for scarce resources, and disrupt habitat.
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Explain the purpose of scientific models.
Answer:Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences.
Explanation:
Which of the following describes an exergonic reaction?
The reaction releases energy that is available to do work.
The Gibbs free energy is positive.
The reaction cannot spontaneously occur.
The reaction is at equilibirum.
Answer:
The reaction releases energy that is available to do work.
Explanation:
Endergonic reaction releases energy.
The following describes an exergonic reaction - The reaction releases energy that is available to do work.
Exergonic reaction:In chemical thermodynamics, a chemical reaction where the change in the free energy is negative
Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy.Reactions with a positive ∆G (∆G > 0) require an input of energy and are called endergonic reactions.The equilibrium constant for an exergonic reaction is greater than 1, meaning it is not at equilibrium.Thus, The following describes an exergonic reaction - The reaction releases energy that is available to do work.
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u. Bacteriophages are viruses that infect a. horses c. mammals b. bacteria d. fungi