pyruvic acid enters the ____ and is first converted into _____.
a. krebs cycle; citric acid
b. krebs cycle; acetyl CoA
c. mitochondria; citric acid
d. mitochondria; acetyl CoA
Answer :
D. Mitochondria ; acetyl CoA
pyruvic acid enters the mitochondria and is first converted into acetyl CoA
True or False: If a planet were to stop moving relative to the sun, gravity would draw that planet into the sun.
Answer:
True
Explanation:
28. The phases for Meiosis II are:
confusin help pls ??????????
Answer:
yes I ldk what u want with no pictures
what are the 3 major purposes for the cell cycle
DESCRIBE THE FUNCTION OF A CELL MEMBRANE AND ITS RELATIONSHIP TO WHAT HAPPENS INSIDE A CELL
Answer:
cell membrane's main function is to act as a selectively permeable barrier to the transport of materials across it. Membrane is made up of phospholipids arranged in a bilayer fashion. The phospholipids are amphipathic in nature, that is, contain both a hydrophobic and a hydrophilic end.
Explanation:
17. Which of the following best describes how amino acids affect the tertiary structure of a
protein?
a) The number of amino acids determines the tertiary structure of the protein.
b) The interactions of the different R-groups with other R-groups and with their environment
determine the tertiary structure of the protein.
c) The R-group of the last amino acid that is added to a growing polypeptide chain
determines the next amino acid that is added to the chain.
d) The sequence of the amino acids in the polypeptide chain determines the protein's
primary structure but has no effect on its tertiary structure.
Answer:
It is B
Explanation:
I had this question on my test last week
The tertiary structure of the protein is determined by the interactions of the different R-groups with other R-groups and with their environment in the protein (Option B).
An R-group (also called variable group) is a side chain that is attached to the α-carbon of the amino acids, the building blocks of proteins.The linear sequence of amino acids within a protein is the primary structure of proteins. The second structure of proteins is determined by the pattern of hydrogen bonding in the peptide backbone. The most common secondary structures of the proteins are alpha-helices and beta-sheets.The protein tertiary structure is the 3D (tridimensional) shape of the protein, which is due to interaction among R groups of amino acids and with their environment.The most common tertiary structures of the proteins are globular and fibrous structures.Finally, the quaternary structure of the proteins is determined by the interaction of several protein chains or subunits.In conclusion, the tertiary structure of the protein is determined by the interactions of the R-groups and with their environment in the protein (Option B is correct).
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If a mother has an AB blood type and her daughter has BB blood type, The dad has
AA blood, the mailman has type AO blood and the neighbor has BO blood. Which one is really the father?
A.the dad
B.the mailman
C.the neighbor
D.none of them
Answer:
c. neighbor
Explanation:
half the mother, half by fathee
type a paragraph summarizing cellular division and differentiation
PLS HELP!!! PROJECT DUE IN 30 MINUTES!!
Answer:
Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. ... Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover.
Answer:
Cellular differentiation is when a cell changes from one cell type to another—usually, the cell changes to a more specialized class. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and average cell turnover.
Explanation:
IM A DIFFERENT BREED!
Please help :( this is a really complicated question
Answer:
B. exponential growth.
Explanation:
Since the conditions are ideal and the reproducing organisms increase in numbers with every generation this means that it is exponentially growing. It can't be carrying capacity. It is not a logistic growth. And they don't have competition here so it can't be competition.
Oxygen-poor blood flows out of the heart and into the lungs. Nutrients and oxygen are sent to other cells and parts of the body. The blood then returns to the heart to begin the process again. Which of the body's systems is the above process describing? Answers (A) -The skeletal system (B)-The digestive system (C)-The respiratory system (D)-The circulatory system
Answer:
(D)-The circulatory system
Explanation:
lol just did it
and pls give me thanks
The circulatory system is the system which consist of blood vessels, heart, and blood. The main function of this system is the transport of oxygen and minerals to all the cells of body. Thus, the correct option is D.
What is Circulatory System?The circulatory system of body consists of all the blood vessels, blood and heart. In this system, blood travels through different blood vessels (arteries, veins, and capillaries) in all parts of the body.
The blood is the main fluid of the body that contains hemoglobin protein which is responsible for the transport of oxygen and carbon dioxide in the body. The blood exchanges gases at the surface of alveoli in the lungs and sends the blood to the heart, heart pumps the blood to all the cells of body.
Therefore, the correct option is D.
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Which of the following nitrogen bases is present only in RNA and not in DNA?
Answer:
The nitrogen base uracil is only present in RNA. It replaces the Thymine used in DNA and bonds with Adenine.
Explanation:
1. The chemical equation for photosynthesis is shown below is incomplete
6H20 + ______________ energy C6 H12 O6 + ________________
Plant pigment
a) Complete the equation in either all words or all symbols.
b) Name the plant pigment necessary for this reaction
2.
Name the tissues labelled A………………….., B………………… and C…………………..(3M)
3. Complete the table by matching each of the described functions to one of the leaf parts as shown in above diagram (4M)
Description of function Leaf part
Main region for photosynthesis. Contain
many chloroplast to trap light energy.
Cells are loosely packed. Air spaces between cells allow gaseous exchange.
Thin and transparent layer that allows light to pass through.
Water vapor passes out during transpiration.
If question 2 is not answerable or if the picture is missing then leave it
Answer:
Explanation:
C2+c4=83
Carbon plus oxygen
Exercise 4 (Module 6.9) Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.
_____ 1. Compound formed between glucose and pyruvic acid
_____2. Not involved in glycolysis _____3. Fuel molecule broken down in glycolysis
_____ 4. Produced by substrate-level phosphorylation
_____5. Invested to energize glucose molecule at start of process
_____ 6. Reduced as glucose is'oxddized _____7. Glucose converted to two molecules of this
_____8. Assembled to make ATP
_____9. "Splitting of sugar"
_____10. Carries hydrogen and electrons from oxidation of glucose
A NADH
B. Pyruvic acid
C. ATP
D. NAD+
E Glucose
F. Glycolysis
G. ADP and P
H. Oxygen
I. Intermediate
Answer:
Explanation:
?????????? i don't undrssanted
Even though sunlight looks white, what is it really made up of?
Answer:
White light means your not missing any of the visible color spectrum, so all the colors.
Explanation:
Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?
Answer: Protease is within
Lipase is within
Carbohydrase is within
Explanation:
Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.
sex linked traits are typically carried on the x chromosome. to denote the geontypes, a superscript is used. a female carrier of hemophillia will have the genotype xH Xh . using the letters X AND Y , what is the genotype for each of the following people?
Answer: XHY, XHXh
Explanation: I don't know if this is correct exactly but i just looked at my notes from my bio class because we did this previously so i think it's right
i need help please i need help
Answer:
what do u need help with?
Explanation:
:P
A student observers melting crayons. Which of the following describes what they saw? A. A chemical change. B. A physical change. C. A physical property. D. A chemical property
Answer: A physical change
Explanation: since the melted they are still Crayons. You can freeze it and it would still be a crayon. So it was only a physical change
There are ________________________ amendments to the Constitution.
Answer:
27 amendments as of 2020
Explanation:
Hope i helped!
What is the difference between glucose and ATP?
Glucose is a storable form of energy, while ATP is a usable form of energy.
ATP is a storable form of energy, while glucose is a usable form of energy.
ATP is only a usable form of energy, but glucose can be used and stored.
Glucose is only a storable form of energy, but ATP can be used and stored.
The main difference between glucose and ATP is that Glucose is a storable form of energy, while ATP is a usable form of energy.
Glucose is storable form of energy because it can't be used as energy until it can be broken down by mitochondria of the cell while on the other hand, ATP is the usable form of energy which we can get from the break down of glucose molecules. Our cells use ATP as a fuel to do various activities of the cell so we can conclude that in glucose, energy is present in stored form whereas ATP is used as energy in various activities.
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why herbaceous plants drop their leaves in hot and dry weather while woody plants remain erect
Answer:to let the leaves dry out
Explanation:
If energy is released, free energy must be what?
Answer:
If energy is released during a chemical reaction, then the change in free energy from the conversion of the reactants to the products, signified as ΔG (delta G) will be a negative number.
Explanation:
Hope it helped!
Answer:
If energy is released during a chemical reaction, then the resulting value from the above equation will be a negative number. In other words, reactions that release energy have a ∆G < 0. A negative ∆G also means that the products of the reaction have less free energy than the reactants because they gave off some free energy during the reaction.
Explanation:
PLEASE HELP! :(
According to the graph, what condition is best for enzyme activity?
Answer:
C
Explanation:
Highest peck in enzyme activities
can someone please help me figure this out! due in 10 mins!! 20 POINTS!!!!
On the periodic table, the elements known as noble gases are all found in?
Answer:
Period 18
Explanation:
It also in group 0
Answer:
Period 18
Explanation:
ik it is trust me
If a population has low death rates and high life expectancy which end of the population pyramid will increase?
Answer: "Constrictive" pyramid
[ I hope my answer is correct]
Which THREE processes are involved when a multicellular organism reproduces sexually? a. mitosis b. fusion of gametes c. meiosis d. formation of gametes. Pls help yall!!!
Answer:
B C D
Explanation:
the mitosis it reproduces by its own it doesn't need another person or animal to reproduce.
Work divided by time is the formula for- (W = T)
O Force
Work
Power
Energy
Answer:
Power
Explanation:
The formula work divided by time is the expression for finding the power consumed or expended by a body.
Power is defined as the rate at which work is done.
Power = [tex]\frac{work done}{time taken}[/tex]
The unit is always expressed in watts and symbolized as W
Work done is force applied to move a body through a certain distance.
Can someone help me write a short speech for this? I’ll give brainliest
Answer:
I sure hope this helps you!
Explanation:
Flying through the air I feel in need of food. Down under me is a beautiful ocean. On that oceans surface, there are lots of phytoplankton. Enough for me, enough for my family. This phytoplankton down under me has lived its life, eaten other organisms, and those organisms eat organisms. Now, is my turn. Tis the circle of life, they eat, I eat. Someday, something will eat me. Eating is very important to the living kind. It helps us stay healthy and alive. This, is my story of The Importance of Upwelling.