Question 5 options:
Reactions which break down complex molecules into simpler ones and release energy
Reactions which involve a transfer of electrons between two species
Energy-storing reactions which link simple molecules together to make complex ones
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What are the folds of the inner membrane of mitochondria?
Question 18 options:
Matrix
Chloroplast
Cristae
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Which statement correctly describe one similarity between cellular respiration and photosynthesis?
Question 13 options:
Cellular respiration and photosynthesis both use light to produce energy
Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions
Cellular respiration and photosynthesis both produce sugar
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Q: 5: Which of the following best describes anabolic reactions?
Answer:
Energy-storing reactions which link simple molecules together to make complex ones
Explanation:
Anabolism or anabolic reactions comprise the process during which simpler molecules are joined or linked to form complex compounds. These reaction require the input of energy but ultimately that energy is stored in complex molecules for later use.
Organisms employ the reactions which absorb the energy in several reactions. and this absorbed energy is then stored for later use to perform various activities of the body.
For example: Photosynthesis is the common example during which energy from the sun is used to create sugar based molecules like sucrose and glucose. The formation of glucose is an anabolic process because it makes complex compound from simple compounds and stores energy in them which is later used to by plants to perform daily activities and work.
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Q: 18: What are the folds of the inner membrane of mitochondria?
Answer:
Cristae
Explanation:
Cristea are the fodings present in inner mitochondrial membrane . The reason why there are called cristae came from Latin word crest that means wrinkled or irregular shape in a way that increases the surface area of the object.
If we look at cristea in mitochondria , its purpose is same, to provide a huge amount of surface area for the diverse types of reactions of cellular respiration that takes place in the inner mitochondrial membrane.
These folds not only enhance surface area but also support aerobic cellular respiration in a number of ways. there are large amount of proteins studded in cristaea like cytochromes and ATP synthases that make sure an efficient execution of the process of cellular respiration.
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Q 13: Which statement correctly describe one similarity between cellular respiration and photosynthesis?
Answer:
Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions
Explanation:
If we talk about the processes of photosynthesis and Cellular respiration both are almost exact opposite in nature. The products of cellular respiration are the reactants of photosynthesis and vice versa.
The sunlight in mandatory for the execution of photosynthesis however, cellular respiration depends on the supply of glucose and ultimate three phases (glycolysis, kreb cycle and electron transport chain) to transform the glucose in the usable energy reservoir ATP.
But still, when we look at the equations of cellular respiration and photosynthesis, we see something is common. And what is that common thing is, Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions. (please see attached figure).
In cellular respiration, water and carbon dioxide are the products along with energy, while in photosynthesis water and carbon dioxide are the reactants.
Hope it helps!
A. The correct option is c.
B. The correct option is c.
C. The correct option is b.
Anabolic reactions are energy-storing reactions linking simple molecules to create complex ones. The folds of the inner membrane of mitochondria are called cristae. Cellular respiration and photosynthesis both involve water and carbon dioxide in their reactions.
The best description for anabolic reactions is option c. Anabolic reactions are energy-storing reactions which link simple molecules together to create more complex ones. They involve the formation of larger molecules from smaller ones. This process requires energy, often sourced from ATP molecules generated by catabolic reactions. Examples of anabolic reactions include the combination of monosaccharides to form polysaccharides, fatty acids to form triglycerides, amino acids to form proteins, and nucleotides to form nucleic acids.
The folds of the inner membrane of mitochondria are called cristae. These folds increase the surface area of the membrane, enabling a greater space for activities related to cellular respiration, such as the production of ATP.
A correct similarity between cellular respiration and photosynthesis is that both processes involve water and carbon dioxide in the reactions. These two processes are crucial for energy transfer in most life on Earth.
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The complete is question here:
Question a.
Which of the following best describes anabolic reactions?
a. Reactions which break down complex molecules into simpler ones and release energy
b. Reactions which involve a transfer of electrons between two species
c. Energy-storing reactions which link simple molecules together to make complex ones
Question b.
What are the folds of the inner membrane of mitochondria?
a. Matrix
b. Chloroplast
c. Cristae
Question c.
Which statement correctly describe one similarity between cellular respiration and photosynthesis?
a. Cellular respiration and photosynthesis both use light to produce energy
b. Cellular respiration and photosynthesis both have water and carbon dioxide in the reactions
c. Cellular respiration and photosynthesis both produce sugar
Protein is a cell's main source of energy.
Answer:
Explanation:
There are 3 different types of DNA dependent RNA polymerase. RNAP II is the main enzyme synthesizing mRNAs.
1. Signals for initiation of transcription
Promoters: there are certain specific areas on the DNA that act as starting signals for initiation process.
The DNA polymerase attaches to the promoter site on the template DNA strand.
TATA Box: upstream of the transcription start site is 5'-TATAAA-3' it is referred to as the TATA Box. It acts as a signal for the start region.
2. Initiation of Transcription. The DNA helix unwind, and the RNAP binds to the promoter site on the 5' end DNA with the help of sigma factor. RNAP reaches the appropriate site of the gene and add the first nucleotide of the mRNA.
3. Elongation of Transcription: the RNAP moves along the DNA template, new nucleotides are incorporated in the nascent mRNA, one by one, according to the base pairing rule.
4. Termination of transcription: specific signals are recognized by the termination protein (Rho factor). When it attaches to the DNA, rnap can't move further. So the enzyme dissociate from DNA and consequently newly formed RNA is released.