How many carbon atoms does glucose have
Answer:
six carbon atoms
Explanation:
Glucose has an aldehyde group (-CHO) on carbon atom number one and is therefore called an “aldose,” also it has six carbon atoms (a hexose) so it can be called an “aldohexose.” The reactive group on fructose, however, is a ketone group (-C=0) on carbon number two.
what is phototropic?
What is the largest portion of the brain?
Answer:
c. Cerebrum
Explanation: is correct
12. Which is NOT a natural cause of extinction?
A. Disease
B. Catastrophic events
C. Introduction of new species
D. Competition due to overpopulation
24. Which is NOT true about energy transformation?
A. Energy is essential to all organisms.
B. Food contains energy that is needed by all organism.
C. Heterotrophs feed on autotrophs and other heterotrophs to gain energy.
D. Autotrophs do not need energy because they can produce their own food.
23. Which is the CORRECT sequence of events in cellular respiration?
A. Glycolysis - fermentation - Krebs Cycle
B. Glycolysis - Krebs Cycle - Electron Transport
C. Krebs Cycle - Electron Transport - Glycolysis
D. Krebs Cycle - Glycolysis - Electron Transport
2. In humans there are four types of blood; type A, type B, type AB and type O. A person with a genotype of IaIa or Iai will have blood type_____?
A. A
B. B
C. O
D. AB
4. A couple has four children, one son and three daughters. What is the chance that the fifth child will be a daughter?
A. ¼
B. ½
C. ¾
D. 1/5
22. Cellular respiration releases energy by breaking down_______.
A. ATP
B. water
C. carbon dioxide
D. food molecules
5. A man is colorblind but there is no history of this disorder in his wife’s family. What is the chance that their son is color
blind?
A. 0
B. 25%
C. 75%
D. 100%
25. Which BEST summarizes the process of respiration?
A. Water + Carbon Dioxide ( light) sugar + oxygen
B. Sugar + Oxygen (enzymes) water+ carbon dioxide +energy
C. Water + Sugar ( light ) carbon dioxide + oxygen
D. Oxygen + Water (enzymes) sugar + carbon dioxide + energy
1. A father with blood type AB and a mother with blood type O will probably produce offspring with a blood type ___. *
A. A
B. B
C. A or B
D.AB or O
6. What is a sex- linked trait that results in the inability to have normal blood clotting?
A. baldness
B. color blindness
C. diabetes
D. hemophilia
11. What causes species extinction?
A. Pollution and reforestation
B. Reforestation and carbon emission
C. climate change and over consumption
D. conservation and consume
18. The pigment molecules responsible for photosynthesis are located in the _______? *
A. Mitochondria
B. Cytoplasm of the cell
C. Stroma of the chloroplasts
D. Thylakoid membrane of the chloroplasts
13. Which part of a leaf contains most of the chloroplasts?
A. Lower epidermis
B. Palisade mesophyll
C. Spongy mesophyll
D. Upper epidermis
19. At optimum light intensity, which atmospheric gas most directly influences the rate of photosynthesis?
A. Nitrogen
B. Oxygen
C. Sulfur
D. Carbon Dioxide
14. What part of the leaf is this tiny opening in the lower epidermis which makes it rough and responsible for the entrance and exit of gases in plants?
A. xylem
B. phloem
C. stomata
D. guard cells
16. In which part of the chloroplast does light reactions of photosynthesis takes place?
A. Grana
B. Stroma
C. Inner membrane
D. Outer membrane
17. Which is NOT needed to make food in plants?
A. Flower
B. Sunlight
C. Chlorophyll
D. Carbon Dioxid
8. Color-blindness is inherited as a sex-linked recessive trait. If a normal woman, carrier of the gene marries a man with normal color vision. What would be the expected phenotype of their children with reference to color-blindness?
A. All color-blind
B. 2 carriers, 2 color-blind
C. 1 normal, 3 carriers
D. 2 normal, 1 carrier, 1 color-blind
3. Blood type O has both antibodies A and antibodies B in the plasma but has no antigen on its erythrocytes or red blood cells. That is why Blood Type O is considered UNIVERSAL______.
A. Blood
B. Donor
C. Marker
D. Recipient
7. Melvin’s thinning hair is like that of his father. This characteristic of baldness is due to
A. multiple alleles
B. sex-linked
C. sex-influenced
D. sex-limited
Answer:
12.B
17. A
11. C
13. B
16. A
7. B
8. B
19. D
23. B
Where in the cell would you expect to find the greatest activity of the pyruvate dehydrogenase complex?
Answer:
Mithochondria
Explanation:
In eukaryotes, the pyruvate dehydrogenase complex, like the enzymes for citric acid cycle and oxidation of fatty acids, is located in the mitochondrion, where is associated with the surface of the inner membrane facing the matrix.
In the cell, mitochondria are the place where it expects to find the greatest activity of the pyruvate dehydrogenase complex.
What is the pyruvate dehydrogenase complex?The three-enzyme complex known as the pyruvate dehydrogenase complex (PDC) is responsible for pyruvate carbonylation, which converts pyruvate to acetyl-CoA.
This complex connects the glycolysis metabolic pathway to the citric acid cycle by allowing acetyl-CoA to be used to perform cellular respiration.
The enzyme pyruvate dehydrogenase catalyzes the reaction between pyruvate and a lipoamide, which yields acetylated dihydrolipoamide and carbon dioxide. The process requires the coenzyme thiamine pyrophosphate.
Therefore, the site where you find the greatest activity of the pyruvate dehydrogenase complex is mitochondria.
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HELPPPPPPPPPPPPPPPPPP
A: equilateral and right
B: equilateral and isosceles
C: isosceles and scalene
D: isosceles and right
Answer:
It's B: equilateral and isoscleles Explanation: both those words mean triangle with equal sides :)
a mammalian stem cell line has a doubling time of 24 hours. if you start with 350,000 of these cells, approximately how many cells would be present after 60 hours of growth?
After 60 hours of growth, there is approximately 2 million cells.
Let y represent the number of cell after x hours.
The bacteria doubles every 24 hours, also there are initially 350000 cells hence:
[tex]y=350000(2)^\frac{x}{24}[/tex]
The number of cells after 60 hours is:
[tex]y=350000(2)^\frac{x}{24}\\\\y=350000(2)^\frac{60}{24}\\\\y = 1979899[/tex]
Therefore after 60 hours of growth, there is approximately 2 million cells.
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which of the following cells contain a plasma membrane?
Explanation:
Like prokaryotes, eukaryotic cells have a plasma membrane (Figure 3.9) made up of a phospholipid bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment.
The ____________ receives the filtrate from the DCTs of several nephrons and funnels it toward the ____________ .
Answer:
collecting duct, renal pyramid
Explanation:
The collecting duct receives the filtrate from the DCTs of several nephrons and funnels it toward the renal pyramid.
Please help a girl out !
Answer:
3=??
5=B
6=C
7=J
8=E
9=G
Explanation:
❤️ sorry I don't know 3 number
What is commensalism
Answer:
an association between two organisms in which one benefits and the other derives neither benefit nor harm.
Explanation:
Most of Earth's energy comes from the Sun. Where does the rest come from?
a. internal heat
b. nuclear fusion
c. biomass
d. fossil fuels
Explain
Answer:
The answer is nuclear fusion
Explanation:
Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom.
HELP NEEDED ASAP! 30 POINTS AND BRAINLYEST TO WHOEVER ANSWERS WITH THE BEST ANSWER! What are 3 examples of gene therapies that are used to treat diseases?
Answer:
Viruses used in gene therapy are retroviruses, adenoviruses, adeno-associated virus, herpes simplex, and vaccinia. Retroviruses are most commonly used because they can incorporate their genetic material into the host cell’s DNA, thus changing the genetic component of that cell.
Explanation:
Gene therapy is a medical field which focuses on the genetic modification of cells to produce a therapeutic effect or the treatment of disease by repairing or reconstructing defective genetic material. The first attempt at modifying human DNA was performed in 1980 by Martin Cline, but the first successful nuclear gene transfer in humans, approved by the National Institutes of Health, was performed in May 1989. The first therapeutic use of gene transfer as well as the first direct insertion of human DNA into the nuclear genome was performed by French Anderson in a trial starting in September 1990. It is thought to be able to cure many genetic disorders or treat them over time.
Gene augmentation therapy.
Gene inhibition therapy.
Killing of specific cells.
I think this is what you want but i'm only 14 and in 10th so sry if its not
Which of the following describes a similarity of the cerebellum and cerebrum?
Answer:
b. They both have an outer layer made of grey matter and an inner layer made of white matter.
Explanation: is correct
A note to Charles Darwin about his findings
Answer:
Dear Charles Darwin,
My name is ___ and I was wondering how all of your theories and findings came to your comprehension of evolution. I have heard and learned about your evolution theories and would like if you could answer some of my questions. What first sparked the interest in evolution? Do you truly believe that everything evolves over time? How do your findings contribute to your theories of evolution? Thank you for your time to answer these questions.
Sincerely ___
Explanation:
Charles Robert Darwin was a British naturalist, geologist, and biologist best known for his contributions to evolutionary science. His dissertation that all kinds of life are derived from a common ancestor is widely accepted today and is considered a basic concept of science.
Which choice has prokaryotic cells?
human blood
cow's liver
onion root
E. coli
Answer:
E coli.
Explanation:
E coli is a prokaryotic organism, meaning it is comprised of only one cell.
What is the molecule that leaves the calvin cycle to be converted into glucose?.
Answer:
G3P Molecules
Explanation:
The molecules of ADP and NAD+, resulting from the reduction reaction, return to the light-dependent reactions to be re-energized. One of the G3P molecules leaves the Calvin cycle to contribute to the formation of the carbohydrate molecule, which is commonly glucose (C6H12O6).
please help me ill give brainliest <3
Answer:
1.O=1 H=2
2.C=1 O=2
3.O=2
4.C=6 H=12 O=6
Explanation:
Not sure what the 6 in front of the first 3 mean,maybe you multiple them six times for the question? not sure if it even means something though.
in cells regulation allows rapid response to changes in the environment; in cells, gene regulation is critical for maintaining homeostasis.
Given what we know about biological mechanisms, we can confirm that both of these statements are in fact true in regards to regulation and gene expression.
Homeostasis is the body's ability to maintain constant a series of processes and values that we need in order to survive. To do this, regulation in cells is essential. Regulation allows us to respond rapidly to changes in the environment by regulating the processes which control the homeostasis for that environmental change.
Gene regulation or expression is another way in which the body maintains homeostasis. For example, in the presence of too much substrate, the gene encoding a specific enzyme might activate, causing the creation of the enzyme and getting substrate levels back to normal.
Inversely, if the body detects that substrate levels may be too low, the expression of any gene that may consume that substrate can be silenced, therefore maintaining a balanced level.
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the term meaning the freeing of a kidney from adhesions is:
Answer:
Ureteroplasty is surgery to remove the stricture.
Explanation:
A farmer planned to plant 120 seeds in all. After planting 10 more seeds each day than was planned.
Answer:
120+10x=x
Explanation:
120+10 times the number of days equals answer
what organelle do both plant and animal cells have that control all of the activities that take place inside of a cell?
Answer:
the nucleus
Explanation:
whats the process of (kepler-186f) fusion between these atoms that occurs in all-stars
Answer: the main element
Explanation: vamp
To some extent, sensory receptors in the skin are specialized to detect and register specific stimuli. Please select the best answer from the choices provided T F.
Sensory receptors in the skin being specialized to detect and register
specific stimuli is True.
The skin is an example of a sense organ found in the body . It contains
receptors which helps to detect and respond to stimuli. There are
different stimuli such as touch, pressure, pain and temperature
This means that the skin being a sense organ is able to detect and register
specific stimuli as a result of the presence of its receptors.
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Answer:
True or False? TRUEExplanation:
a skeletal muscle generates the greatest tension when it is:
Explanation:
A skeletal muscle generates the greatest tension when it is: partially stretched before being stimulated
Skeletal Muscle generates the greatest tension when the muscle is stretched to an intermediate length, by length-tension relationship.
How tension generates in skeletal muscle?Muscle tension is highest in skeletal muscles when stretched to an intermediate length, as indicated by the length-tension relationship.
When skeletal muscle fiber contracts, myosin heads link to actin to create cross-bridges, and the thin filaments slide across the thick filaments as the heads pull the actin, resulting in sarcomere shortening and muscular contraction stress.
The amount of stress produced by a muscular contraction is determined by two factors: the number of active muscle fibers and the frequency of neural stimulation of the muscle fibers.
Therefore greatest tension generates in skeletal muscle when it is stretched to the intermediate length.
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which of these organs is an accessory organ of the digestive system?
Answer:
Where is the picture??
Explanation:
The tiny bones of the middle ear are collectively known as the A. otoliths. B. scala media. C. ossicles. D. stapes.
Answer:
C. Ossicles
Explanation:
Answer:
The tiny bones of the middle ear are collectively known as the ossicles.
Explanation:
The ossicles (the three tiny bones in the middle ear) are responsible for amplifying sound vibrations from the eardrum.
what cells are the stem cells for spermatogenesis?
Answer:
Spermatogonial stem cells
Explanation:
Help me label these parts please
Answer:
1. Cell Body
2. Nucleus
3. Endoplasmic reticulum
4. Mitochondria
5. Dendritic Branches
6. Dendrite
7. Golgi Apparatus
8. Axon
9. Telodendria
10. Synaptic Terminals
Explanation:
I am smart like that :)
in DNA, ________ always forms hydrogen bonds with Guanine (G)
Answer:
in DNA, Cytosine always forms hydrogen bonds with guanine
hope help you
Answer:
cytosine
Explanation: