How can surveying reading material improve your comprehension?
The structure of hair is formed by keratin. Keratin is most likely which of the following polymers?
Answer:
Keratin is a protein.
Explanation:
Keratin is a fibrous protein that has the characteristics of rigid conformation, elasticity and impermeability to water. It has animal origin and is found in the vertebrate epidermis and in some epidermal appendages, such as hair, nails, hooves, feathers and scales. This protein is produced in cells called keratinocytes, which are the most abundant in the human epidermis.
Like any protein, keratin is made up of amino acids. It has a large amount of cysteine residues, which is responsible for 7% to 20% of the total amino acids present in keratin. Note that cysteine is mainly located in the terminal region of the keratin chains.
NEED HELP! Will mark brainiest, heart, 5star, anything!
Question 1
The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division.
A.True
B. False
Question 2
During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?
Anaphase
Interphase
Metaphase
Telophase
Question 3
Which is the third stage of mitosis?
Anaphase
Interphase
Metaphase
Telophase
Question 4
How is cytokinesis different in animals and plants?
Animal cells get pinched into two daughter cells by the cell membrane; the plant cell has to form a cell plate before it can create daughter cells.
Animal cells give daughter cells a full set of chromosomes at the time of division; plant cells give daughter cells a half set of chromosomes.
Animal cells require an extra growth phase before cytokinesis; plant cells move straight to cytokinesis.
Animal cells begin cytokinesis during anaphase; plant cells begin around the same time as telophase.
Question 5
During which stage of interphase does the cell grow to nearly its full size?
First gap
Second gap
Prophase
Synthesis
Question 6
Which of the following is one stage of the cell cycle?
Cellular respiration
Mitosis
Multiplication
Photosynthesis
Question 7
Explain why it is important for daughter cells to have a full set of chromosomes. Use complete sentences.
The term mitosis does not apply to prokaryotes since, it involves nuclear division and eukaryotic structures.
Year-old fell on broken glass and required suturing of a laceration. due to age and combative behavior of the patient, the physician utilized moderate sedation while repairing the laceration. the physician gave the child 50 mg of ketamine im. a nurse monitored the patient during the procedure which took 30 minutes. what cpt® code is reported for moderate sedation?
The ____________ contains vertically arranged maculae that would provide feedback of body movement in the vertical plane
The fat located under the skin is called ________ fat.
Answer:
subcutaneou
Explanation:
subcutaneou
Can i have brainly pls
Given a template strand of 3'-atgcttggaca-5' and a partially-made complementary strand containing only 5'-tac-3', what would be the sequence of the new strand of dna (including the 5'-tac-3') if the only additional nucleotides available to dna polymerase were those containing the bases g, a, and c?
Arabinose is a monosaccharide that
e. coli can use as an energy source. when both glucose and arabinose are present in the media,
One would expect to find this protein involved in the elongation of bacillus anthracis to form its typical shape
The protein involved in the elongation of Bacillus anthracis to form its typical shape is unknown. However, the shape of a protein is critical to its function.
Explanation:The protein involved in the elongation of Bacillus anthracis to form its typical shape is unknown. However, the shape of a protein is critical to its function. For example, in the process of biological nitrogen fixation, the carrier protein leghemoglobin binds with a very high affinity to its substrate oxygen at a specific region of the protein where the shape and amino acid sequence are appropriate. If the shape or chemical environment of the active site is altered, the substrate may not be able to bind as strongly or not bind at all. Thus, for the protein to be fully active, it must have the appropriate shape for its function.
The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.
Answer:
B) is a living organism.
Explanation:
All living organisms must have 8 treats or characteristics to be called living things:
cellular organizationreproductionmetabolismhomeostasisheredityresponse to stimuligrowth and developmentadaptation through evolutionThese eight characteristics are what make something a living thing, since the protist is made out of a cell, which has all of this characteristics, we can assume is a living organism, the other options could be truth, but we do not have enough information to say if they are or they aren´t true.
Anton thinks that glucose is a reactant of photosynthesis, but his classmate Jamila disagrees. Who is correct, and why?
Anton is correct because glucose is a substance that is present before the chemical reaction of photosynthesis takes place.
Anton is correct because glucose is a substance that is formed from the chemical reaction of photosynthesis.
Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Jamila is correct because glucose is not involved in the chemical reaction of photosynthesis.
Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Photosynthesis is a chemical reaction that occurs in plants which produce their food in the form of glucose by trapping the light energy from sun and using reactants such as carbon dioxide from the atmosphere and water. This process occurs in the leaf cells of the plants.
On the basis of the above information, this can be concluded that Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Answer:
Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Explanation:
I just finished the test :D
The ara operon is controlled by a regulator protein that exerts ________.
AraC protein certain to the ara
operator works as a repressor that avoid transcription of the same ara operon
and the araC gene AraC protein is an activator in the presence of arabinose and
repressor in the absence of arabinose -With arabinose absent, the AraC protein
stays as
a homodimer. One AraC protein put together to the ara initiator and the other
protein now binds to a different regulatory site in DNA called the ara operator.
The membrane potential exists mainly due to ________ channels.
Consider the diagram. mc004-1.jpg Josiah says this is a phylogenetic tree of the dinosaurs. Maleek says it is a cladogram of the dinosaurs. Who is correct?
Answer:
c
Explanation:
What changes would you recommend to permit expression of this eukaryotic gene in a bacterial cell?
Gene Expression is the progression wherein the information from a gene is used in the combination of a functional gene product. In eukaryotic cells, genes are delimited by repressors as well as by transcriptional activators. The repressors will muddle to the specific DNA sequences and will constrain transcription.
Which of these choices is a benefit of using only nonpolluting sources of electricity?
A. Higher electricity prices
B. Healthier ecosystems
C. Loss of jobs
D. More-expensive clean technologies
Answer:
healthier ecosystems
Explanation:
ape.x
The cytoskeleton is an internal scaffolding used for cellular movement true or false
A hypothetical poison prevents nucleoli from carrying out their functions. Which organelles would be affected by this poison? What would the cell be unable to do? Explain.
which one of these is not a reason that cells require the ability to diffuse materials across their membranes?
Most enzymes in living things are made up of
1. Carbohydrates
2. Lipids
3.Proteins
4. Nuclear acids
Someone please help me with this as soon as you can!
Answer:
3. Proteins
Explanation:
Enzymes are naturally occurring groups of organic substances of protein origin (they can be form by 62 amino acid residues, such as 4-oxalocrotonate tautomerase enzyme monomer to 2500 residue size) with intra or extracellular activity that have catalyst functions. This is achieved by lowering the activation energy to allow a chemical reaction, resulting in an increased reaction speed and allowing the metabolism of living things. Importantly, although most enzymes are proteins, there are also enzymes consisting of RNA as ribozymes.
The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of which form of reproductive isolation?
a. temporal isolation
b. behavior isolation
c. hybrid infertility
d. gametic isolation
e. hybrid inviability
Final answer:
Ligers, offspring of a tiger and lion mating, exhibit hybrid infertility due to hybrid sterility, which is a type of postzygotic reproductive isolation preventing them from reproducing.
Explanation:
The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of hybrid infertility. Specifically, this is a case of hybrid sterility, which is a form of reproductive isolation that occurs after fertilization, resulting in a hybrid that is not capable of reproducing. Thus, the correct answer is c. hybrid infertility.
Which of the numbered features is a lateral moraine?
Which organelle is made of a phospholipid bilayer? A. cell wall B. cytoplasm C. ribosome D. cell membrane
A person who is highly tolerant to _____ creates problems for anesthesiologists in surgery.
What precautions should be taken when constructing masonry walls in minneapolis in the winter?
Following precautions should be taken when constructing;
1) Contractors should know about the temperature on the work site.
2) The unsatisfactory decision of safety measure strategy will crumple the particular undertaking quality.
3) There should be the availability of LP gas heaters and blowers.
4) Temporary workers can likewise pick poly fenced in area installed with platform frameworks firmly.
5) Warmth conveying punctured texture tube running under platform will be utilized.
6) There should be the utilization of dry mortar rather than wet mortar in winter season.
7) Quick setting mortar or cement Mortar setting admixtures can be utilized.
8) Wind should be above 25mph in wind barriers and the temperature that is required is below 25 degree.
Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?
Analyze this case in which the patient record states:40 year old male patient (new) is evaluated for contusion of a finger. the history and examination were problem focused.
Finger contusion can be characterized by bruising of finger, where there is swelling and bleeding under the skin but no broken bones.
1. Diagnosis and Management:- Contusion of finger is diagnosed by the symptoms such as pain, swelling, discoloration, tenderness and difficulty in movement. Sometimes numbness is associated as swelling compresses the nerves in that region.X-ray (If required CT scan0 can be done to confirm the diagnosis and rule out fractures and other serious forms of injuries.
Depending upon the severity, treatment is decided. The contusion is managed with an aim to reduce pain, swelling and restore the movement. The options so as to treat the contusion, based on its severity are as follows
a. Applying Icepacks and keeping the finger propped up above the heart level.
b. Splinting and taping
c. Physiotherapy
d. Ultrasound therapy
e. Surgical treatment is required in case of torn ligaments.
These options of treatment are accompanied with over the counter pain killers and anti inflammatory drugs
The atp synthase uses this gradient to restore adp back to atp. what is this process called?
ATP synthase uses a proton gradient to restore ADP to ATP in a process known as chemiosmosis, which takes place during oxidative phosphorylation.
Explanation:The process by which ATP synthase uses a proton gradient to restore ADP back to ATP is called chemiosmosis. This occurs during oxidative phosphorylation, a key part of cellular respiration where the energy stored in the electrochemical gradient, developed due to the movement of protons (H+), is utilized. As protons flow through ATP synthase, much like water flowing through a turbine, they provide the energy needed for the enzyme to catalyze the production of ATP from ADP and inorganic phosphate (Pi).
"we find perennial grasses and flowering plants called forbs in __________ grasslands."
The biodiversity of the Earth’s vegetation makes up its beauty especially the grassland which is covered mostly of trees and grasses. There are a lot of varieties of grassland and among of which is savanna grassland where we can find perennial grasses and the flowering plant called forbs.
15 POINTS!
Study the diagram, which represents the general equation for photosynthesis. What do the letters Y and Z represent?
Y - glucose
Z - oxygen
Y - glucose
Z - carbon dioxide
Y - carbon dioxide
Z - hydrogen
Y - carbon dioxide
Z - oxygen
Answer:
The correct answer is Y - glucose, Z - oxygen
Explanation:
In photosynthesis, plants- and also other organisms- take carbon dioxyde (CO₂), water (H₂O) and light (which is absorbed by chlorophyll pigments, those give plants their green color), and they convert inorganic materia in organic materia (chemical energy) in form of sugar. The overall process is described by the following global equation:
6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂
carbon dioxide + water → glucose + oxygen
In the diagram, the equation is:
carbon dioxide + water + sunlight → glucose + oxygen
Answer:
The correct answer is A.
Explanation:
Y represents Glucose, a product of cellular respiration. Z represents Oxygen, which is also a product of cellular respiration.
(CO2 + Water + Sunlight = Glucose and Oxygen)
Hopefully, this helps! :D
Ask your question down below!