Answer:
Activity level.
Explanation:
Metabolism is the important for the cell survival and its growth. Most of the metabolic factors does not depend upon the control of the organism and occurs itself in the body.
Some factors can be improved or controlled by the activity level. The activity level can be controlled by the individual and may affect the flexibility and may also affect the other metabolic factor. One can control its own activity level.
Thus, the correct answer is option (b).
The majority of the planet’s oxygen is generated from the rainforest.
b.
Two-thirds of all plants originated from the rainforest.
c.
The rainforest is a major catalyst for the planet’s water cycle.
d.
The rainforest is important to life as a whole on the planet.
Answer:
D) The rainforest is a major catalyst for the planets water cycle.
Explanation:
I took the test
Answer:
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Explanation:
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C. NADH,ATP, and pyruvate
Transfer RNA (tRNA) is a type of ribonucleic acid. It brings amino acids to the ribosomes and mRNA for the structural organization into proteins. Thus, option D is correct.
tRNA is an adaptor molecule that decodes the mRNA sequences in the form of amino acids through the ribosomes. It is involved in the translation process of complex protein synthesis.
tRNA transports the amino acids (codons) to the ribosomes to join them with their complementary (anti-codon) sequence for the polypeptide assembly.
Therefore, the tRNA carries amino acids for polypeptide formation.
Learn more about tRNA here:
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The complete question is attached to the image below.
The four macro molecules are nucleic acid, carbohydrate, proteins, and lipids.
Structure:
1. Nucleic acids: Contain N in rings, nucleotides made of sugar, phosphate and nitrogenous base
1. Carbohydrates: Made of C,H, and O; –OH's on all carbons except one
2. Lipid: Made of C,H, and O; lots of C-H bonds; may have some C=C bonds (unsaturated)
3. Protein: Contain N, have N-C-C backbone
Function:
1. Nucleic acids: Stores and transfers info
2. Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall
3. Lipid: Insulator and stores fat and energy
4. Protein: Provide structural support, transport, enzymes, movement, defense.
The 4 types of Macromolecules:
- Carbohydrates: Compound made of Carbon, Hydrogen, and oxygen. Their main functions are for Energy, Storage, and structure. There are 3 types of carbs; Monosaccharides, Disaccharides (Which are both simple sugars), and Polysaccharides (Which are starches).
- Lipids: Compound that contains mostly carbon and hydrogen. Their main functions are to store energy, Insulate the body, surround and protect cells, regulate cell activity, and provide structure and Transmit information. They are well known as Fats (solid at room temp.) & oils (Liquid at room temp.) phospholipids, and Steroids.
- Proteins: Compound made of Carbon, Hydrogen, and Nitrogen. Their main functions are for transport, making movement possible, providing structure and support, and speeding up chemical reactions.
- Nucleic Acids: Compound made of Carbon, Hydrogen, oxygen, nitrogen, and phosphorous. Their main function is to store and transmit genetic information, determine protein structure, and helping in building proteins. They are the blueprint for life. They include DNA and RNA, and they determine your appearance.