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Root hair cells are specialized cells that are found on the surface of plant roots. They are elongated cells with a thin, hair-like appearance, and they are responsible for absorbing water and nutrients from the soil. Root hair cells have a high surface area to volume ratio, which allows them to absorb a large amount of water and nutrients in a relatively small volume.
In contrast, normal epithelial cells are found in many tissues of the body, including the skin, lining of the gut, and the respiratory and reproductive tracts. These cells are generally flatter and have a lower surface area to volume ratio compared to root hair cells. This is because they do not have the same specialized function of absorbing large amounts of water and nutrients from the environment.
Overall, the high surface area to volume ratio of root hair cells allows them to effectively absorb water and nutrients from the soil, while the lower surface area to volume ratio of normal epithelial cells allows them to perform other functions, such as protecting and separating different tissues and organs.
Related Questions
Describe the functions and the main organs systems in plants and animals as it relate to their structure:1) Enzymes of the endocrine system, e.g. amylase in the mouth and stomach enzymes
Answers
Amylase is an enzyme synthesized in the pancreas and salivary glands, so it is present in the human saliva. The main function of this enzyme is to catalyze the hidrolisis of starch (or amylum, are complex carbohydrates present in some plant-based food, such as in rice and potates).
In the stomach, the most important digestive enzyme is called pepsin. This protein is produced in the stomach walls and it breaks down the proteins into smaller particles such as peptides and amino acids. Another stomach enzyme is the gastric lipase, which catalize lipid hydrolisis.
Which part of the cell theory best explains why unicellular organisms can perform all life’s basic functions even though they are made up of one cell
Answers
Answer: The part of the cell theory that best explains why unicellular organisms can perform all life's basic functions is "all living things are composed of cells."
Explanation: This means that unicellular organisms are composed of a single cell that has all the necessary components and functions to carry out life processes on its own. The cell is the basic unit of life and contains all the necessary structures, such as a cell membrane, cytoplasm, and genetic material, that allow it to carry out functions such as reproduction, metabolism, and response to stimuli. Therefore, unicellular organisms can perform all basic life functions because their single cell contains all the necessary components to do so.
Which of these microbes has the most complex cell wall?
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Can someone Help me please!
Answers
Explain why the PCR has been dubbed a "chain reaction"
Answers
Answer:
A "chain reaction" is a reaction that promotes or spreads the reaction. PCR rapidly makes a bunch of copies of a specific DNA sample and can "promote" the increase the amount of DNA.
Explanation:
3. Which of the following provides the best description of active transport of
materials across the cell membrane?
A:Active transport does not require energy and moves materials from areas of
relatively higher to lower concentration.
B:Active transport requires energy and moves materials from areas of
relatively lower to higher concentration.
C:Active transport does not require energy and moves materials from areas of
relatively lower to higher concentration.
D:Active transport requires energy and moves materials from areas of
relatively higher to lower concentration.
Answers
Answer:
B. Active transport requires energy and moves materials from areas of relatively lower to higher concentration.
Explanation:
A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?
A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?
Rr x Rr
RR x rr
Rr x rr
RR x Rr
Answers
Answer:
2nd one
Explanation:
I believe this is correct. rr is a recessive homozygous.
Please help me out with this.
Answers
The cell wall protects the cell it acts like a barrier
(d) a species of intertidal plant has thick shiny leaves that reflect sunlight make a claim about which area of the intertidal zone this plant is best adapted to live in
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Based on the description of the plant having thick, shiny leaves that reflect sunlight, it can be inferred that this plant is best adapted to live in the upper intertidal zone.
Where is the plant foundThe upper intertidal zone is the area that is exposed to air and sunlight during low tide and is submerged during high tide. Plants that live in this area are exposed to high levels of sunlight and heat, as well as desiccation (drying out) during low tide. Therefore, plants in this zone need to be adapted to withstand these harsh conditions.
The thick, shiny leaves of the plant described would help to reflect sunlight and reduce the amount of heat absorbed by the plant, which can help prevent overheating and damage from the sun. Additionally, the thickness of the leaves could help reduce water loss during low tide when the plant is exposed to air and is at risk of desiccation.
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which two statements correctly relate RNA amino acids , and proteins
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The two correct statements that relate RNA, amino acids, and proteins are C and D.
RNA, Amino acids, and ProteinsRNA is used to build the amino acid sequence: RNA molecules, specifically messenger RNA (mRNA), serve as templates for protein synthesis. During a process called translation, the sequence of nucleotides in mRNA is read by ribosomes, and the corresponding amino acids are assembled in a specific order to form a protein.
Long amino acid sequences fold in a specific way to form proteins: Proteins are composed of long chains of amino acids. After the amino acids are synthesized and linked together, the resulting chain folds into a three-dimensional structure, which is critical for the protein's function. This folding process is driven by various interactions between the amino acid residues in the chain, allowing the protein to adopt its specific shape and perform its specific function.
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A neurotransmitter from a presynaptic neuron causes an inhibitory postsynaptic signal (IPSP) in the postysynaptic neuron. Which if the following events will occur FIRST1Sodium-gated ligand channels open2Potassium ligand-gated channels open3An action potential is initiated in the postsynaptic neuron4The postsynaptic neuron will hyperpolarize
Answers
A neurotransmitter from a presynaptic neuron causes an inhibitory postsynaptic potentials (IPSPs), in the postysynaptic neuron. The following event will occur first : Potassium ligand-gated channels open.
Inhibitory postsynaptic potentials or IPSPs, on the other hand, are triggered by the opening of chloride channels. The equilibrium potential of chloride is -65 mV. Thus, if a neuron is resting at −60 mV, chloride channels will flow into the cell due to the electrochemical gradient when the chloride channels open.
As an inhibitory neurotransmitter, GABA normally causes hyperpolarization of postsynaptic neurons, producing inhibitory postsynaptic potentials (IPSPs), whereas glutamate causes depolarization of postsynaptic neurons, producing excitatory postsynaptic potentials ( EPSP).
IPSPs are generated when inhibitory presynaptic cells attach to dendrites and initiate action potentials. Presynaptic inhibitory neurons are involved in the release of specific neurotransmitters.
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Design and organise learning experiences according to your local circumstances when teaching Processing (including traditional processing of raw materials; metal processing; food processing)
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When teaching Processing, it is essential to design and organize learning experiences that align with local circumstances and provide practical applications.
Here is a suggested approach for teaching Processing, including traditional processing of raw materials, metal processing, and food processing, considering local circumstances:
1. Introduction and Contextualization:
Start by introducing the concept of processing and its importance in various industries. Provide examples of local raw materials, metals, and food products that undergo processing. Discuss the significance of processing in the local economy and its impact on society.
2. Field Trips and Industry Visits:
Arrange field trips to local processing facilities such as factories, mills, or food processing plants. These visits offer students firsthand exposure to different processing techniques and machinery. Encourage students to observe and interact with professionals in the field, asking questions and understanding the practical aspects of processing.
3. Hands-on Workshops:
Organize hands-on workshops where students can engage in practical activities related to processing. For example, set up a metalworking workshop where students can learn basic metal processing techniques like cutting, shaping, and welding. Provide guidance on safety measures and proper tool usage.
4. Local Case Studies:
Explore local case studies of successful processing businesses or initiatives. This could involve inviting guest speakers from local processing companies or inviting entrepreneurs who have started their own processing ventures. Students can learn about the challenges, opportunities, and sustainable practices in the local processing industry.
5. Project-Based Learning:
Assign project-based tasks that allow students to apply their knowledge of processing. For example, students could design and develop a prototype for a food processing machine or propose innovative methods to improve traditional processing techniques using local resources. Encourage creativity, critical thinking, and problem-solving skills throughout the project.
6. Community Engagement:
Encourage students to engage with the local community by organizing outreach programs related to processing. This could involve organizing workshops for local artisans or collaborating with local farmers to develop value-added food products. Such activities foster a sense of social responsibility and provide students with real-world experiences.
7. Assessment and Reflection:
Regularly assess student understanding through quizzes, assignments, and presentations. Encourage reflective practices where students can evaluate their own learning journey and identify areas for improvement. Incorporate feedback mechanisms to continuously enhance the learning experiences.
By designing learning experiences that incorporate field trips, hands-on workshops, local case studies, project-based learning, community engagement, and reflective practices, students will develop a holistic understanding of processing and its significance in their local context. This approach will equip them with practical skills, foster creativity, and promote an entrepreneurial mindset, preparing them for future opportunities in the processing industry.
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How do the shared characteristics of life provide evidence for evolution?
Answers
Answer:
Evolution occurs due to change in the characteristics of life.
Explanation:
The shared characteristics of life provide evidence for evolution. These shared characteristics are reproduction, homeostasis, heredity, growth, development and adaptation which occurs through evolution. The evolution mainly occurs due to changing environmental conditions. Some sea organisms such as whales evolve from land animals having four legs through the process of evolution. The environment of sea is responsible for the formation of gills and other body structure in order to survive in the water.
Why do you think scientists use the word mutate to describe the genetic process?
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Answer:
scientists use the word mutate to describe the genetic process because it is changes. mutations are just changes.
Explanation:
I did this in science last year
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histology slide showing purple layers with top layer having multiple flattened cells and nuclei present.
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The histology slide showing purple layers with the top layer having multiple flattened cells and nuclei present is likely showing stratified squamous epithelium.
This type of tissue is composed of multiple layers of cells, with the top layer consisting of flattened cells and nuclei present. Stratified squamous epithelium is found in areas of the body that are subject to mechanical stress, such as the skin, mouth, and esophagus. The multiple layers provide protection and the flattened cells on the surface allow for a smooth surface for substances to pass over. In summary, the histology slide you are describing is showing stratified squamous epithelium, a type of tissue that is composed of multiple layers of cells with the top layer consisting of flattened cells and nuclei present. This tissue is found in areas of the body that are subject to mechanical stress and provides protection and a smooth surface.
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Analyze the table illustrating the events of mitosis and cytokinesis. The table outlines the potential activity of the chromosomes and
the dividing cell in which cell cycle stages are the events that are listed accurate? Select ALL that apply.
A) anaphase
B) cytokinesis
C)metaphase
D) prophase
E) telophase
Answers
Answer:
metaphase & telophase
Explanation:
Just did the same question
The possible movement of chromosomes and the cell dividing into the metaphase and telophase cycle phases are the events that are accurately listed. So, the correct options are C and E.
What are the phases of Mitosis?Mitosis consists of five morphologically distinct phases which are as follows: prophase, prometaphase, metaphase, anaphase and telophase where each phase involves specific steps in the process of chromosome alignment and segregation.
Metaphase is defined as the chromosomes that line up in the middle of the cell while telophase is defined as the two nuclei that form after the reformation of the nuclear envelope around each set of chromosomes.
Thus, the possible movement of chromosomes and the cell which divides into the metaphase and telophase cycle phases are the events that are accurately listed. Therefore, the correct options are C and E.
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what are the major types of DNA called
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Answer:
Autosomal DNA and mitochondrial DNA
Explanation:
There are two types of DNA in the cell – autosomal DNA and mitochondrial DNA. Autosomal DNA is packaged into 22 paired chromosomes.
In each pair of autosomes, one was inherited from the mother, and one was inherited from the father. Autosomal DNA is passed down from both the mother and the father and provides clues to a person’s ancestry.
Hope this helps!
Brain-List?
do you like yours sister
Answers
Answer:
yeah of course but sometimes they annoy you so much that you'll end up hating her but inside you love hey more than anyone in this world ❤️
Describe the resting state of a neuron.
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Discuss the similarities and differences in chemiosmosis between oxidative phosphorylation in mitochondria and photophosphorylation in
chloroplasts.
Answers
Answer:
please give me brainlist and follow
Explanation:
Describe the similarities in chemiosmosis between oxidative phosphorylation in mitochondria and photophosphorylation in chloroplasts. Both ways create a proton gradient across a membrane. ... OXIDATIVE- The electrons come from organic molecules. Mitochondria transfer chemical energy from food molecules to ATP.
Choose the correct answer from the two choices you are given.
1. (Parallax, Spectroscopy) is used to determine how far away stars are.
2. Enzymes are (catalysts, organelles) that help cells make energy.
3. Mitochondria, lysosomes, and vacuoles are (organelles, proteins) inside cells.
4. (Ethologists, Anthropologists) are scientists who study animal behavior.
Answers
Parallax is used to determine how far away stars are.
Parallax is a measurement technique that astronomers use to determine the distance to nearby stars. It involves observing the apparent shift in the position of a star as the Earth orbits the Sun. By measuring this shift, astronomers can calculate the distance to the star using trigonometry.
Enzymes are catalysts that help cells make energy.
Enzymes are specialized proteins that act as catalysts in biological reactions. They facilitate and accelerate chemical reactions in cells, including those involved in energy production. Enzymes play a vital role in processes such as cellular respiration, where they help break down nutrients and convert them into usable energy molecules like ATP (adenosine triphosphate).
Mitochondria, lysosomes, and vacuoles are organelles inside cells.
Mitochondria, lysosomes, and vacuoles are all examples of organelles found inside cells. Organelles are specialized structures within cells that perform specific functions. Mitochondria are responsible for producing energy through cellular respiration. Lysosomes contain enzymes that break down waste materials and cellular debris. Vacuoles are membrane-bound sacs involved in storing various substances, maintaining cell turgor, and facilitating cellular processes.
Ethologists are scientists who study animal behavior.
Ethologists are scientists who specialize in the study of animal behavior. They observe, analyze, and seek to understand the behavioral patterns, social interactions, and ecological relationships of animals in their natural environments. Ethologists use various research methods, such as field observations and experiments, to investigate animal behavior and gain insights into their evolutionary and ecological significance. Anthropologists, on the other hand, study various aspects of human societies, cultures, and behavior.
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What are some fun facts about bacteria reproduction?
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INTERESTING FACTS:
01)Bacteria (singular: bacterium) hails from the kingdom monera and is the simplest unicellular organism.
02)Only with powerful microscopes are the bacteria visible to the human eyes as they are the smallest among cells.
03)Bacteria are known as the most abundant forms of life.
04)Bacteria live everywhere: on land, in water, in the air, and inside the bodies of other living organisms.
how do i tell if my bearded dragon has tail rot?
Answers
A postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. It has three presynaptic inputs-from neurons X, Y, and Z. Stimulation of
neuron X causes the postsynaptic neuron to depolarize by 0.5 mV. When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by
1 mV, If X fires 10 times and Y fires 10 times the result will be …
Multiple Choice
a subthreshold summation.
presynaptic inhibition.
threshold is reached and an AP is fired.
many APs are fired.
the membrane depolarizes.
Answers
When X fires 10 times and Y fires 10 times, the result will be a subthreshold summation.
Subthreshold summation happens when two or more presynaptic inputs that are sub-threshold (i.e., they cannot create an action potential) combine their effects on the postsynaptic neuron.
Here, the postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. When neuron X is stimulated, it depolarizes by 0.5 mV.
When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV, which is sub-threshold (below -55mV).
Therefore, when X fires 10 times and Y fires 10 times, the postsynaptic neuron will experience subthreshold summation and no action potential will be fired.
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inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
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Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
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is having glasses a acquired trait or is it inherited
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Answer: It can be both but it is mainly an inherited trait but environmental things can make your eye sight worse or better which can end up being an acquired, but like I said its more so an inherited trait.
Explanation:
A mutant strain of E. coli produces -galactosidase in the presence and in the absence of lactose. Which of the following mutations will cause this result?
A. mutations in the lac operator
B. mutations in the lacl gene that encodes the repressor
C. mutations in the CAP binding site
D. both A and B are correct A,B, and C are correct
Answers
what function of lipids are essential to living organism
Answers
Answer:
Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
Explanation:
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Answer:
Lipids serve multiple functions across species. They function as energy reserves, regulate hormones, cushion vital organs and transport fat- soluble nutrients. Lipids are mainly produced by the smooth endoplasmic reticulum.
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How many bears were in the emerald forest in 2001?
Answers
Answer:
2001 = 50 Bears
Explanation:
2000 = 40
2001 = 50
2002 = 70
2003 = 120
2004 = 130
2005 = 130
2006 = 140
The temperature of the planet is closely aligned to which type of greenhouse gas?A: methaneB: hydrogenC: carbon dioxideD: ozone
Answers
The current average temperature of Earth is 61 degrees Fahrenheit, or around 15 degrees Celsius. The greenhouse gas that affects the Earth's temperature is carbon dioxide. The increase of CO2 since the Industrial Revolution has contributed to the almost 1 degrees Celsius increase in the average temperature of the Earth.
ANSWER: C. Carbon dioxide