Compare the function of retinal in the eye with that of the pigment chlorophyll in a plant photosystem (see Concept 10.2).
Answers
The process of light detection is started when retinal absorbs light and changes from its cis isomer to its trans isomer. Instead of causing isomerization, a photon that is absorbed by chlorophyll raises an electron to a higher energy orbital and starts the electron flow that produces ATP and NADPH.
Retina of the eye:Light that enters your eye is converted by the retina into electrical signals that your optic nerve sends to your brain, which produce the images you see. It's an important aspect of your vision.What pigments does a photosystem consist?Some cofactors, including the pigments lutein, beta-carotene, and neoxanthin, as well as chlorophylls a and b, are attached to particular locations in the pigment binding proteins PSI and PSII. These cofactors are essential for the photosynthetic process of light absorption.What role does pigment play in the photosystem?Although certain pigment-binding proteins may also be involved in other photosynthesis-related activities, the primary role of the pigment-binding proteins is to capture solar energy and transport it, in the form of excitation energy, to P680 in the end.To learn more about photosystem visit:
https://brainly.com/question/13211869
#SPJ4
Related Questions
How do major geologic events help build Earth’s timeline?
Answers
explain how a molecule such as kinase d can amplify an extracellular signal. explain how the mutant brec protein is able to activate kinase d even in the absence of its ligand.
Answers
No matter the character of the signal, the target mobile responds by a particular protein called a receptor, which especially binds the signal molecule after which initiates a response inside the target cell.
Get entry to the sign molecule appropriate intracellular signaling pathways and the proper machinery to provide and secrete the signal molecule receptor that acknowledges the signal molecule effector molecules that alter cell behavior in response to the signal molecule.
Small lipophilic materials together with natural hormones diffuse via the cell membrane and bind to nuclear receptors located within the cytosol (the kind I NR) or nucleus (type II NR) of the cell.
Learn more about protein here
https://brainly.com/question/10058019
#SPJ4
In tomato plants, purple leaf color is controlled by a dominant allele A, and green leaf by a recessive allele a. At another locus, hairy leaf H is dominant to hairless leaf h. The genes for leaf color and leaf texture are separated by 16 m.u. on chromosome 5. On chromosome 4, a gene controlling leaf shape has two alleles: a dominant allele C that produces cut-leaf shape and a recessive allele c that produces potato-shaped leaf.
a. The cross of a purple, hairy, cut plant heterozygous at each gene to a green, hairless, potato plant produces the following progeny:
Frequency % 21 21 21 Phenotype Purple, hairy, cut Purple, hairy, potato Green, hairless, cut Green, hairless, potato Purple, hairless, cut Purple, hairless, potato Green, hairy, cut Green, hairy, potato 21 4 4 4 4 100
Give the genotypes of parental and progeny plants in this experiment.
b. Fully explain the number and frequency of each phenotype class.
Answers
Purple, hairy, and cut plant: AaHhCc, Green, hairless, and potato plant: aahhcc
a) Genotypes of parental plants:
Purple, hairy, and cut plant: AaHhCc
Green, hairless, and potato plant: aahhcc
Genotypes of progeny plants:
Purple, hairy, and cut phenotype: A-H-C/a-h-c (\(\frac{9}{64}\) offspring)
Green, hairless, and potato phenotype: aa-HH-cc (\(\frac{1}{64}\) offspring)
Purple, hairy, and potato phenotype: A-H-cc (\(\frac{3}{64}\) offspring)
Green, hairless, and cut phenotype: aaHhC- (\(\frac{3}{64}\) offspring)
Purple, hairless, and cut phenotype: A-hhC- (\(\frac{3}{64}\) offspring)
Purple, hairless, and potato phenotype: A-hhcc (\(\frac{1}{64}\) offspring)
Green, hairy, and cut phenotype: aaHhC- (\(\frac{1}{64}\) offspring)
Green, hairy, and potato phenotype: aa-HHcc (\(\frac{1}{64}\) offspring)
b) Explanation of frequency of each phenotype class:
Purple, hairy, cut: 21% (\(\frac{21}{100}\))
Green, hairless, potato: 4% (\(\frac{4}{100}\))
Purple, hairy, potato: 4% (\(\frac{4}{100}\))
Green, hairless, cut: 4% (\(\frac{4}{100}\))
Purple, hairless, cut: 4% (\(\frac{4}{100}\))
Purple, hairless, potato: 4% (\(\frac{4}{100}\))
Green, hairy, cut: 4% (\(\frac{4}{100}\))
Green, hairy, potato: 4% (\(\frac{4}{100}\))
To know more about Chromosomes here: https://brainly.com/question/32871069
#SPJ11
Which of the following proteins is NOT required for homologous recombination?
A) Hfr
B) RecA
C) proteins having helicase activity
D) endonuclease
Answers
This protein is not required for homologous recombination, A) Hfr.
Hfr refers to a type of bacterium that has a high frequency of recombination, but it is not a protein required for homologous recombination. The other options (RecA, proteins having helicase activity, and endonuclease) are all proteins that play important roles in homologous recombination.
Your answer: A) Hfr. Hfr (high-frequency recombination) is not a protein but rather refers to a type of bacterial cell that is efficient at transferring genes during conjugation. B) RecA, C) proteins having helicase activity, and D) endonuclease are all proteins involved in the homologous recombination process.
To know more about Homologous, visit:
https://brainly.in/question/49145251
#SPJ11
The protein that is not required for homologous recombination is Hfr .The correct option is A.
Hfr stands for high-frequency recombination, and it's a strain of E. coli bacteria. It includes the F factor in its genome, which makes it an effective donor of genetic material. Helicase activity proteins play a significant role in homologous recombination as they help in unwinding the double-stranded DNA, and endonucleases, on the other hand, cut the DNA at specific locations.
RecA protein is essential for homologous recombination, as it helps the exchange of genetic material. It binds to the single-stranded DNA, which is created during the double-strand breakage of the homologous DNA molecule, and catalyzes the replacement of single-stranded DNA with the genetic material from another DNA molecule.
Therefore, the correct answer is option A) Hfr.
To know more about coli bacteria visit:
brainly.com/question/28997441
#SPJ11
when a leafy celery stalk is placed in colored water, transpiration results in the _____ turning the color of the water.
Answers
Answer: When a leafy celery stalk is placed in colored water, transpiration results in the leaves turning the color of the water.
Explanation:
When a leafy celery stalk is placed in colored water, transpiration results in the leaves turning the color of the water.
The leaves of the celery stalk will turn the color of the water due to the process of transpiration. This is because the colored water is absorbed by the celery stalk and travels up through the xylem to the leaves. The colored water then evaporates from the leaves, leaving behind the color in the leaves. This process is known as transpiration and is an important part of the water cycle in plants.
For more such questions on Transpiration.
https://brainly.com/question/13891305#
#SPJ11
the fleshy extension of the soft palate is known as the
Answers
The fleshy extension of the soft palate is known as the uvula. The uvula is a small, cone-shaped structure that hangs down from the soft palate, playing a role in speech and swallowing.
The uvula projects as a conical structure from the centre of soft palate. It contains racemose glands and some muscular fibres; along with a few serous glands which produce watery saliva. The function of the uvula is to converge with the soft palate to cover the opening of nasopharynx, it hence, prevents food from entering it. It also helps in phonetics of sounds, initiation of gag reflex and production of small amount of watery saliva. Enlarged uvula usually leads to snoring and sleep apnea, which can be treated with removing a part or whole of the uvula.
For more questions related to uvula, refer to:
https://brainly.com/question/15443989
#SPJ11
When you observe a burning candle, you observe both light and thermal energy. Why does this example demonstrate the law of conservation of energy?
A.
Matter is not created or destroyed when the candle burns.
B.
The amount of energy in the candle is equal to the amount of light energy produced.
C.
The chemical energy in the candle is transformed into light and thermal energy without creating or destroying energy.
D.
The law is only true when potential energy is transformed into kinetic energy.
Answers
Answer:
C i just took the test not too long ago
The chemical energy in the candle is transformed into light and thermal energy without creating or destroying energy. So the correct option is C.
What is thermal energy?
The energy that makes up a system's temperature, or thermal energy, is said to be present in the system. Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is performed in the process
We are often concerned about the function thermal energy plays in assuring energy conservation in the context of mechanical difficulties. Nearly every energy transfer that occurs in actual physical systems do so with an efficiency lower than 100% and generates some thermal energy.
Low-level thermal energy is the most common form this energy takes. Low-level here denotes a thermal energy temperature that is quite near to ambient temperature. Because work can only be extracted when there is a temperature difference, low-level thermal energy serves as "the end of the road" for energy transmission. No further productive activity is conceivable because the energy has already "gone to the environment."
Therefore the correct option is C.
Read more about thermal energy, here
https://brainly.com/question/11278589
#SPJ2
why are commercial greenhouses use heaters on cold days?
Answers
Answer:
Heat is often used in greenhouses and makes plant growth possible when the weather is cold outside. Increased temperatures in greenhouses increase the rate of photosynthesis. Temperature regulation is important – note that cooling may also be required.
Explanation:
How does DNA create proteins. (in detail)
Answers
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Through the processes of transcription and translation, information from genes is used to make proteins.
Answer:
I got you
Explanation: The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, but n the simplest sense, expressing a gene means manufacturing its corresponding protein,
The _____ is used to monitor the centering of the process.
Select one:
a .np-chart
b.-chart
c. R-chart
d. p-chart
Answers
The _R-chart_ is used to monitor the centering of the process.The correct answer is c. R-chart.
The R-chart, also known as the Range chart, is used to monitor the centering of the process. It is a statistical control chart that tracks the variability or dispersion within a process by measuring the range between the maximum and minimum values of a sample. The R-chart is commonly used in conjunction with the X-bar chart (also known as the process mean chart) to monitor process performance. While the X-bar chart focuses on the central tendency or average of the process, the R-chart helps assess the spread or variability of the process.
By plotting the ranges of multiple samples on the R-chart, one can determine if the process is exhibiting consistent variation or if there are shifts or changes in the dispersion. If the ranges remain within control limits, it indicates that the process is in statistical control and the centering is stable. However, if there are points that fall outside the control limits or a systematic pattern emerges, it suggests that the process variation has changed, and further investigation or corrective actions may be necessary. Overall, the R-chart is a valuable tool for monitoring the centering of a process by assessing the variability or dispersion within the process over time.
Learn more about process here:
https://brainly.com/question/25296810
#SPJ11
what is the correct order of protein production?
1) ribosome
2) endoplasmic reticulum
3) secretory vesicles
4) golgy apparatus
a) 1,2,3,4
b) 2,4,3,1
c) 1,2,4,3
d) 3,2,4,1
Answers
Answer:
The correct order of protein production is:
c) 1,2,4,3
Ribosome: Protein synthesis begins in the ribosomes, which are located either in the cytoplasm or attached to the endoplasmic reticulum.
Endoplasmic Reticulum: After the initial stages of protein synthesis in the ribosomes, the newly synthesized protein is transported into the endoplasmic reticulum (ER) for further processing and modification.
Golgi Apparatus: The proteins synthesized in the ER undergo further processing and modifications in the Golgi apparatus. This includes sorting, packaging, and modifying the proteins to their final functional forms.
Secretory Vesicles: Once the proteins are properly processed and modified in the Golgi apparatus, they are packaged into secretory vesicles. These vesicles transport the proteins to their destination, such as the plasma membrane for secretion outside the cell.
Therefore, the correct order is 1, 2, 4, 3.
Answer:
The correct order of protein production is ribosome, endoplasmic reticulum, Golgi apparatus, and secretory vesicles. So the correct answer would be c) 1,2,4,3.
Many proteins destined for the endoplasmic reticulum, the Golgi apparatus, lysosomes, the plasma membrane, and secretion from the cell are synthesized on ribosomes that are bound to the membrane of the endoplasmic reticulum. The Golgi apparatus then distributes these proteins and lipids that it receives from the ER.
In mice, Gray color is considered to be dominant over white. Show the parent genotypes, the Punnett squares and give the phenotype and genotype ratios of the P1 generation: a homzygous gray mouse and a white mouse, show the F1.
Answers
Answer:
See the answer below
Explanation:
Let us assume that the gray color in mice is represented by the G allele and the white color is represented by g allele. For a cross between a homzygous gray mouse and a white mouse:
Genotype of the gray mouse - GG
Genotype of the white mouse - gg
Crossing the two parents
GG x gg
F1 Gg Gg Gg Gg
All (100%) the offspring at the F1 would have the genotype Gg and would be gray in color since G is dominant over g. (See the attached image for the Punnet's square).
To be considered 'living,' an organism must minimally consist of a. DNA and proteins. b. DNA and RNA. c. RNA and proteins. d. one or more cells. e. atoms and molecules
Answers
To be considered 'living,' an organism must minimally consist of one or more cells. The correct option is d.
Living things are characterized by certain basic processes such as metabolism, growth, reproduction, and response to stimuli. Living organisms are made up of one or more cells, which are the basic units of life. The smallest organisms can exist as a single cell, while the largest organisms, such as humans, contain trillions of cells.
To be considered 'living,' an organism must minimally consist of one or more cells. The cell is the smallest unit of life, and living organisms may be unicellular or multicellular. The presence of one or more cells is the most fundamental characteristic of life. All living organisms are made up of cells, which are the basic units of life.
Thus, the correct option is d.
To know more about Living things, refer to the link below:
https://brainly.com/question/28532386#
#SPJ11
what is affecting the earth today
Answers
in your own words, what is biodiversity?
Answers
Answer:
Biodiversity is all about the different living species we have on earth, such as animals, plants, bacteria, and including fungi. It also includes species that have not been discovered yet, along with microorganisms and invertebrates. Why is it important, you may ask? Well, Biodiversity prevents certain animals from being extinct, allows organisms to adapt to the environment around them, and in addition, provides an excessive amount of food and materials for survival. Lastly, Biodiversity helps support our Ecosystem, so in the long run, it can withstand and recover from a multitude of disasters.
I hope this helps! :)
why
Thy law is are imp
important
Answers
Answer: The law is important because without the law we would have criminals all over the streets and people would just take things without paying people would just crash in the street there would be 12 yr old's dating 23 yr old's. So law is important so everything can be in its place and not be crazy and illegal
como afecta este tipo de contaminacion a tu salud ? (el humo de carro)
Answers
Answer:
El aire contaminado no solo afecta al sistema respiratorio, sino que repercute en muchos más aspectos de nuestra salud. Pulmones. Perjudican su revestimiento y provocan tos, sibilancias, disnea y dificultades para respirar, sobre todo en personas vulnerables. Infartos.
Explanation:
hope this helps novio<3
Which 3 characteristics did Darwin observe that were slightly different in a population?
A function, breeding habits, food sources
B form, function, behavior
C behavior, form, food sources
D form, breeding habits, behavior
Answers
Answer:
B. form, function, behavior
Explanation:
need help asap. check picture
Answers
We can see here that identifying the stage in the cycle the hormone levels are at their highest and most active, we have:
Box 1: Luteinizing hormone levels high.
Box 2: Progesterone levels high
Box 3: Estrogen levels consistently rise.
What is hormone?A hormone is a chemical substance produced by the endocrine glands in the body.
Luteinizing hormone (LH) levels rise sharply in the middle of the menstrual cycle, which is called the ovulatory phase. This surge of LH triggers ovulation, the release of the mature oocyte from the ovary.
Progesterone levels rise after ovulation and peak in the luteal phase. Progesterone prepares the uterus for pregnancy by thickening the lining of the uterus. If pregnancy does not occur, progesterone levels drop and the menstrual cycle begins again.
Estrogen levels rise throughout the follicular phase, which is the first half of the menstrual cycle. Estrogen levels peak just before ovulation.
Learn more about hormone on https://brainly.com/question/4678959
#SPJ1
how are genetically modified organisms used in biotechnology for medicine. please help me!
Answers
Answer:
Genetically modified organisms (GMOs) are used in biotechnology for medicine to produce therapeutic proteins, such as insulin and growth hormone, and to create genetically modified cells for use in gene therapy. Additionally, GMOs are also used in the production of vaccines.
Answer: How? I shall explain...
Explanation:
So Biotechnology is the mix of natural sciences and engineering sciences in order to achieve applying organisms, cells and organic matter for products and services.
Think about if someones DNA has malfunctioned and the scientists need to change it. They use bio-engineered cells to go in the nucleolus of the cell and edit the DNA. (To the best of my tiny knowledge)
Scientists can't perform molecular sized operations for cells and organisms, so they use bio-engineered cells to do it. (Tell me if I'm wrong)
They can also create situations in contained environments to experiment with modified cells to see the results.
why is asexual reproduction important to prople who grow plants
Answers
Answer: because they can reproduce on their own
Explanation: it makes it easier for them to grow their plants
HELP ME WITH THIS PLEASEE
1 List two structures of the circulatory system other than blood.
2 What is the liquid part of the blood called?
3 Why are red blood cells red?
4 State the function of the red blood cells in the circulatory system.
5 State the functions of the two types of white blood cells in the blood.
6 Give two differences between the structure of red blood cells and white blood cells.
7 What are platelets and what is their function in the blood?
Answers
Answer:
1 veins and arteries
2 plasma
3 because they contain hymoglobin which is red in colour
4 they carries oxygen around the body
5 lymphocyte : engulf pathogens and destroy them within
phagocytes : sends toxins that destroy pathogens where they are
6 red blood cells are bio concave to increase surface area for carrying oxygen whereas white blood cells some are free form shape especially lymphocytes to squeeze through capillaries in a way to where the pathogens are located
7 platelets are small blood components that helps in blood clotting to avoid the excessive bleeding
if the volume of a cylnder is 175 cubic units how much would a cones volume be with the same radius and height
Answers
Answer:
175/3 π
The volume of a cone is 1/3 of a cylinder with the same measurements.
If the cylinder is 175π then the cone is 175/3 π.-
What organic compound is used in order to break bonds between the nitrogenous bases so replication can occur
Answers
Explain how potential energy and kinetic energy change as a roller coaster around the track
Answers
Answer:
beacuse of the ups and downs
Explanation:
Answer:
up, down
Explanation:
Answer the following questions for each skull, using specimens in your lab or Figures A through C on page 260 if speci- mens are not available. Be careful to use characteristics that are distinguishing for that group at that specific level in the taxonomic hierarchy! For example, if deciding whether an animal is a platyrrhine or a catarrhine, be sure to use features that distinguish members of these two groups from one another. Skull A 1 Is this a primate? Why or why not? 2 Is it a strepsirhine or a haplorhine? How do you know? 3 If a haplorhine, is it a tarsier, a platyrhine, or a catarrhine? How do you know?
Answers
1. Skull A may be a primate based on its forward-facing eyes, postorbital bar/plate, and reduced snout.
2. To determine if Skull A is a strepsirhine or haplorhine, examine its nose and teeth.
3. If Skull A is a haplorhine, it can be classified as a tarsier, platyrhine, or catarrhine based on its nasal bones and ear region
1. To determine if Skull A is a primate, look for the following distinguishing features: forward-facing eyes, a postorbital bar or plate, and a reduced snout. If these features are present, it's likely a primate.
2. To distinguish between strepsirhines and haplorhines, examine the nose and teeth. Strepsirhines have a moist, rhinarium nose, and a tooth comb. Haplorhines have a dry nose and no tooth comb. Check for these features to classify Skull A.
3. If Skull A is a haplorhine, determine its subcategory by looking at the nasal bones and ear region.
Examine these features on Skull A to make the distinction.
To know more about haplorhine click here:
https://brainly.com/question/13776097
#SPJ11
does wind and weather diverge at the equator?
Answers
What do sea squirts ,lampreys ,and amphibians have in common ?
Answers
What do sea squirts, lampreys, and amphibians have in common?
They all go through metamorphosis from larva to adult
most of the cells in your body right now are in which phase of the cell cycle?
Answers
Most cells in the human body are currently in the non-dividing phase of the cell cycle, which is known as G0 phase. This phase is a resting state in which cells carry out their normal functions without preparing to divide.
During the cell cycle, cells go through several phases, including G1, S, G2, and M. However, not all cells in the body are actively dividing at any given time. In fact, many cells in the body, such as nerve cells and muscle cells, remain in the non-dividing G0 phase for long periods of time or even permanently.
Cells in the G0 phase are still metabolically active and carry out their normal functions, but they are not actively preparing to divide. This phase is important for maintaining tissue function and homeostasis in the body.
Learn more about metabolically here:
https://brainly.com/question/31384460
#SPJ11
please help me if you can
Answers
Answer:
50%
Explanation
G G
g Gg Gg
g Gg Gg
since each box has Gg it has to be 50%