Answer:
True
Explanation:
The deep parts of an ocean receive minimal or no sunlight. Hence, the survival of phototropic organisms like plants and algae is impossible or minimal here. Hence, there is a very little diversity in deep oceans. The organisms living here have to feed on dead decaying matter or on each other for survival. Mostly, the organisms living here use dead organisms as food. No other food source is available here.
Large polymers are created during dehydration synthesis, which are typically referred to as biological macromolecules. These compounds include proteins, lipids, carbohydrates, and nucleic acids.
As a result, the dehydration reaction is responsible for the formation of protein, lipid, and nucleic acids.
1. Protein structure
- Amino acid polymers form proteins. There are four different types of proteins, based on structure.
- The amino acid sequence of a protein is represented by its primary structure, which is a linear chain.
- The backbone (main chain) atoms of a polypeptide are arranged locally in space to form the protein's secondary structure.
- A polypeptide chain's whole three-dimensional structure is referred to as a protein's tertiary structure.
- The protein's quaternary structure, which is a three-dimensional arrangement of the subunits of a multi-subunit protein.
2. Lipid structure is a crucial element of the cell membrane. The structure is mostly composed of a glycerol backbone, two hydrophobic fatty acid tails, and a hydrophilic phosphate group.
3. Nucleic acids' structure: Nucleotide polymers make up nucleic acids. Each nucleotide is made up of an aromatic base with a N-atom connected to a pentose sugar with five carbons, which is then joined to a phosphate group.
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Answer:
A
Explanation:
Liquid cooling is applied around the uranium rods to cool them. When this water is heated thanks to uranium, it produces water vapor.
Concentration gradient across the membrane. Proteins in the membrane allow specific molecules through, passively.
Answer:
Transcription of gene A is not affected
Explanation:
A transcriptional repressor is a DNA/RNA-binding protein that acts to suppress gene expression and/or protein synthesis by binding to target sequences. Moreover, a silencer is a DNA region that binds to particular transcriptional repressors in order to suppress gene expression. In this case, the transcriptional repressor is activated by binding to an effector molecule X (e.g., another protein). In consequence, and since the activated repressor-X complex is not more able to bind the silencer of gene A, it is expected that such complex will not be able to affect transcription of the target gene.
