A(n) __________ is a rule that describes a pattern in the natural world.
In three (3) sentences, explain the function of a vacuole in plant cells.
ANSWER:
A vacuole is used for temporary storage of water, waste products, food, and cellular material. Plants take in large amounts of water and need a place to store the water. Vacuoles are larger in plant cells than animal cells to store the water and other materials needed by the cell.
A vacuole is an organelle found in different forms of life (i.e., animal, plant, protist, fungi and bacteria). The plant vacuoles are filled with water containing both inorganic and organic compounds in solution.
The plant cells contain one or more vacuoles, which are membrane-bound structures (organelles) surrounded by a membrane called tonoplast.In plant cells, the vacuole helps to provide structural support and plays diverse roles including storage of water, waste products and growth.The plant vacuoles also serve for maintaining internal hydrostatic pressure within the cell and balancing the internal (acidic) pH.In conclusion, a vacuole is an organelle found in different forms of life. The plant vacuoles are filled with water containing inorganic (salt) and organic (e.g. enzymes) substances in solution.
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A vacuole in plant cells serves as a storage area for water, nutrients, and wastes, maintains turgor pressure to support the plant's structure, and plays a role in protecting the plant from herbivory. It can occupy up to 90% of a plant cell's volume and is essential for the plant's responsiveness to water availability, contributing to cell expansion and wilting depending on environmental conditions.
Explanation:The function of the vacuole in plant cells is multifaceted, primarily involving storage and maintenance of internal pressure. A large central vacuole is a signature feature of plant cells, taking up to 90% of the cell's volume, and it is crucial for storing water, nutrients, and waste products. Additionally, the central vacuole helps maintain turgor pressure, which supports the cell structure and is vital for plant rigidity and overall health.
By regulating the water balance within cells, the vacuole plays a key role in cellular function, particularly in changing environmental conditions. When a plant lacks water, the vacuole will release some of its water content, causing the plant to wilt due to loss of turgor pressure. Furthermore, the vacuole is involved in the storage of pigments that color flowers and has a role in deterring consumption by animals and insects due to the bitter taste of the fluid within.
When homologous chromosomes are aligned with each other and arranged as pairs in order of decreasing size, the resulting portrait is referred to as a(n)?
What is meant when it is said that the products of respiration are the raw materials for photosynthesis?
Humans and other animals need a variety of materials in order to form the molecular building blocks of life. what is the primary source of these materials?
Is a red fox a vertebrate or invertebrate?
Birds and strawberries benefit each other. Strawberries provide food for the birds; the birds provide a way for strawberries to widely disperse their seeds. This kind of animal/plant interdependence is known as _____. commensalism mutualism parasitism dispersism
Answer: mutualism
Mutualism is a symbiotic relationship, between two organisms, living in close association with each other. In this relationship both the organisms gains benefit. Both organisms are dependent on each other for competing their life cycle.
The given situation is an example of mutualism because both the species are benefited for the relationship. Birds receive food from strawberries in turn birds disperse the seeds of strawberry to promote growth of more strawberry plants. Both organisms are interdependent on each other.
The ecological approach emerged as a reaction _____.
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Use the table below to answer the following question.
A group of students analyzed four biological samples that each contained a different macromolecule. The table shows the results of their analysis. Based on this data, which sample most likely contained RNA?
Question 3 options:
Sample 2
Sample 4
Sample 3
Sample 1
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Question 4 (2 points) Question 4 Unsaved
The transmission of genetic material from one generation to the next is necessary for the survival of a species. Which statement describes one property that helps to ensure the reliable transmission of genetic information in living organisms?
Question 4 options:
RNA uses a nucleotide base called uracil to distinguish itself from DNA.
A pyrimidine base will only pair with the correct purine base.
The two strands of a DNA molecule cannot be separated.
Translation of mRNA to assemble a protein is an irreversible process.
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1. A group of students analyzed four biological samples that each contain a different macromolecule.
Here the data is given in the table, based on that we can say that sample 3 is most likely to contain RNA.
Each macromolecule has a different structure and composition other than C, H and O being common.RNA and DNA both are nucleic acid - a macromolecule that is composed of a pentose sugar, phosphate group and nitrogen base(purine and pyrimidines).That can be seen in table number 3- C, H, O, N, sugar, phosphate chain.2.The transmission of genetic material from one generation to next is necessary for the survival of species.
one property that ensures a reliable transmission of genetic information is complementary base pairing.That is a pyrimidine base will only pair with the correct purine base and the then only the DNA replication occurs efficiently.This leads to transmission of genetic information.To learn more about macromolecules :
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what does trophic level mean in ecosystem
Certain amino acids are called essential because they ______.
Certain amino acids are called essential because they cannot be synthesized from the scratch. There are nine essential amino acids.
What are the essential amino acids?
An essential amino acid or the indispensable amino acid is an amino acid which cannot be synthesized from that of scratch by the organism fast enough to supply its demand in the body, and must therefore come from the diet they eat. Out of the 21 amino acids which are common to all the life forms, the major nine amino acids include humans those who cannot synthesize include phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine amino acids.
Foods which contain all the nine essential amino acids are called as complete proteins. These food components include beef, poultry, fish, eggs, dairy, soy, quinoa, and buckwheat.
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How many total pairs of the highlighted muscle does each individual have?
What is the primary function of the phloem in vascular plants?
Answer:
Phloem is the food transporting vesicles of a vascular plant
Explanation:
Phloem and Xylem together forms the vascular tissue. While Xylem transport fluid in the plant , phloem is responsible for transportation of soluble organic substances such as sugar, protein etc. Phloem transports food produced during the process of photosynthesis in leaves to all other non-photosynthesizing body parts such as stem and roots. The food travels from the leaves to the roots with the assistance of gravity.
The substance in phloem travel through the “sieve tube members” and “ companion cells” .
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What method would you use to assess the status of the biosphere on a global basis?
The status of the biosphere can be assessed globally using remote sensing and biodiversity studies. Remote sensing involves using satellite technology to track environmental and biological conditions, while biodiversity studies involve detailed analysis of the variety of life in different regions.
Explanation:To assess the status of the biosphere on a global basis, scientists and researchers could use a method called remote sensing. This involves satellites and radars that monitor conditions on Earth, providing important data on global indicators. For example, NASA's Earth Observing System tracks parameters such as temperature, humidity, vegetation, carbon dioxide and other critical measurements. Data from remote sensing offers comprehensive, global information about environmental and biological processes in the biosphere.
Another method is through biodiversity studies. This involves counting, comparing and monitoring the variety of life, including plants, animals and microorganisms, in different areas of the biosphere. Many of these studies are conducted through field work, laboratory research and statistical analysis, all aiming to comprehend the dynamics of the biosphere.
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What is the difference between the nucleotides used in dna replication during the pcr and the nucleotides used during dna duplication within the cell?
The constant balancing of an organism's energy-producing and its energy-using processes is called
A patient weighs 154 pounds. she must receive medication in the amount of 25 mg/kg/day. how many milligrams of medication should she take each day? remember that 1 kilogram = 2.2 pounds.
Name the organelles that are only found in the plant cell but not in the animal cell.
What macromolecule makes up a chromosome?
Consuming more than 60 grams of fiber per day poses some health risks, such as ________. decreased mineral absorption due to chemical binding by the fiber blockage of the intestinal tract decreased appetite in some individuals all of these choices are accurate.
Final answer:
Health risks associated with consuming more than 60 grams of fiber per day include decreased mineral absorption, blockage of the intestinal tract, and decreased appetite. All of these options are correct, highlighting the need for balanced fiber intake.
Explanation:
Consuming more than 60 grams of fiber per day poses some health risks, such as decreased mineral absorption due to chemical binding by the fiber, blockage of the intestinal tract, and decreased appetite in some individuals. Indeed, all of these choices are accurate. While dietary fiber is beneficial and necessary for proper digestive health, excessive intake can lead to these adverse effects. High levels of fiber can interfere with the absorption of minerals like calcium, iron, and zinc because it binds to these minerals, making them less available to the body. A very high-fiber diet can also lead to intestinal blockages, especially if fluid intake is not increased concurrently. Moreover, fiber is known for its satiating effect, which can be advantageous for weight control but might lead to a decreased appetite and potential undernutrition if intake is excessively high.
The patient is a 10-month-old boy who fell while trying to walk. he cut the bottom of his lip open. sutures are necessary, but due to the patient's age and excessive movement, general anesthesia is needed. what modifier should be used?
If the victim of a toxicologic emergency vomits, an emt should _________.
Alex's family raises fruit and vegetables for income. they live in an area that receives less than .2 inches of rain per month. therefore they need to use an irrigation system to water their crops. where does alex live?
Which is an autonomic body function? squinting in the sunlight salivating at the thought of a hamburger raising your hand in class bending over to pick up a book you dropped
Answer:
salivating at the thought of a hamburger
Explanation:
The autonomic functions of the human body are governed by the autonomic nervous system, which is an involuntary system that transmits nerve impulses from the central nervous system to the periphery, stimulating peripheral organs and systems.
Salivating at the idea of a hamburger is an unconscious action, that is, we cannot control it; such as the heartbeat, breathing, among other actions of our human body.
Explain why soft-bodied invertebrates, like slugs, die when you pour salt on them.
Two major differences in the morphology of spermatids and spermatozoa
The correct answer is that spermatids are larger and have a round shape, while spermatozoa are smaller and have a flagellum.
To understand the differences between spermatids and spermatozoa, one must consider their stages in spermatogenesis, the process by which sperm are produced.
Spermatids are the haploid cells that result from the second meiotic division of secondary spermatocytes. They are characterized by the following morphological features:
1. Size: Spermatids are larger than spermatozoa. This is because they have not yet undergone the final stages of differentiation and maturation that will transform them into mature sperm cells.
2. Shape: Spermatids have a round shape. They do not possess the elongated form that is typical of mature spermatozoa.
3. Nucleus: The nucleus of a spermatid is larger and less condensed compared to that of a spermatozoon. The DNA within the nucleus of a spermatid is not yet fully packaged with protamines, which are proteins that replace histones during spermiogenesis, leading to a more compact nucleus in the spermatozoon.
4. Cytoplasm: Spermatids have a significant amount of cytoplasm, which contains organelles and other cellular components necessary for their development into spermatozoa.
Spermatozoa, on the other hand, are the mature, motile sperm cells. They exhibit the following morphological characteristics:
1. Size: Spermatozoa are smaller than spermatids due to the loss of excess cytoplasm and the condensation of their nucleus.
2. Shape: Spermatozoa have an elongated shape with a distinctive head, midpiece, and tail. The head contains the condensed nucleus, the midpiece has mitochondria arranged in a helical fashion to provide energy for movement, and the tail is a flagellum that propels the sperm.
3. Flagellum: One of the most notable features of spermatozoa is the presence of a flagellum, which is an elongated structure that enables them to swim. Spermatids do not have a flagellum.
4. Acrosome: Spermatozoa have a specialized structure called the acrosome at the tip of their head. The acrosome contains enzymes that help the sperm penetrate the egg during fertilization. Spermatids begin to develop an acrosome, but it is not fully formed until the spermatozoon stage.
In summary, the two major differences in the morphology of spermatids and spermatozoa are that spermatids are larger and have a round shape, while spermatozoa are smaller, have an elongated shape with a distinct head, midpiece, and tail, and possess a flagellum for motility. These differences are crucial for the function of spermatozoa in fertilization.
Lard, butter, and cream are rich sources of ________. saturated fatty acids monounsaturated fatty acids polyunsaturated fatty acids trans fatty acids
The nurse is reviewing aspects of cultural care. which statements illustrate proper cultural care? select all that apply
The question is
missing the options, here are the options for the above question:
A. Examine the patient within the context of one's own cultural
health and illness practices.
B. Select questions those are not complex.
C. Ask questions rapidly.
D. Touch patients within the cultural boundaries of their
heritage.
E. Pace questions throughout the physical examination.
The correct choices are “B, D, and E”.
Complex questions may not be responded in satisfactory ways due to cultural variations and touching patients have various boundaries as in every cultural heritage that is different and finally pacing the question throughout the examination may help patient get better care.
What is the primary difference between impersonation and masquerading?
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Which of the following waves, from the electromagnetic spectrum, have the highest energy?
Radio wave
Microwave
Visible light
Gamma wave