What is the function of the organelle indicated by B?
What is the function of the organelle indicated by B? The Golgi apparatus within the endomembrane system functions in the sorting and modifying of membrane- bound proteins being transported to various cellular locations.
What does the small circular structure indicated by the letter C represent?
What does the small circular structure indicated by the letter C represent? The mitochondria each have a small circular DNA chromosome that contains genes for several mitochondrial proteins. These proteins are translated within the mitochondria (on the ribosomes indicated by the small red dots).
What major function occurs on the specific membranes indicated by a quizlet?
What major function occurs on the specific membranes indicated by A? Structure A is the rough endoplasmic reticulum (ER). The figure illustrates how proteins are synthesized on ribosomes bound to the rough ER, sorted in the Golgi, and delivered to the plasma membrane for secretion or packaged into lysosomes.
What process allows for the production of molecule B from a template consisting of molecule A?
What process allows for the production of molecule B from a template consisting of molecule A? Transcription is the synthesis of RNA using DNA as a template.
What are the structure and functions of organelles?
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.
How is the structure of an organelle related to its function?
Organisms are composed of cells, and these cells have specific structures within in them that allow them to carry out their functions. These structures are called Organelles.
How does the structure of a cell suggest its function?
The structure of the cellular membrane suggests that it may be a barrier its function as a selectively permeable membrane/barrier proves this to be true. The structure of the nucleus in a cell suggests that one of its chief purposes is to house and pass on DNA its function helps to confirm this.
What is cell structure and function?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Which of the following is a function of the rough ER quizlet?
Which of the following is a function of the rough endoplasmic reticulum? The rough ER synthesizes all proteins secreted from the cell; it also functions as the cell's "membrane factory" because integral proteins and phospholipids that form part of all cellular membranes are manufactured there.
Which of the following is not a major function of proteins in the cell membrane?
Answer and Explanation: The choice in the question that is not a major function of proteins is choice "b", the storage of energy for the cell.
What is the name of the enzyme complex that forms at the start of transcription?
A complex of proteins that interacts with the Pol II complex and allows transcription to begin. The initial mRNA transcript that is transcribed from a protein coding gene. Also called pre-mRNA.
Which transport process is the main mechanism for the movement of most macromolecules by body cells?
Which transport process is the main mechanism for the movement of most macromolecules by body cells? Receptor-mediated endocytosis.
What is the function of an organelle?
Cell organelles carry out various functions from maintaining the shape of the cell to reproduction, movement, protein synthesis Synthesis Polymerase Chain Reaction (PCR) , energy production, and the transport of substances in and out of the cell.
How does a structure of a cell suggest its function?
The structure of the cellular membrane suggests that it may be a barrier its function as a selectively permeable membrane/barrier proves this to be true. The structure of the nucleus in a cell suggests that one of its chief purposes is to house and pass on DNA its function helps to confirm this.
What is structure and function of cell?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
How does the structure affect function?
In biology, a key idea is that structure determines function. In other words, the way something is arranged enables it to play its role and fulfill its job within an organism (a living thing). Structure-function relationships arise through the process of natural selection.
How are structure and function related in the study of cells?
Research in cell structure and function seeks to determine mechanisms by which parts of cells undergo change and interact with one another in carrying out basic cellular functions. The field encompasses cell morphology, physiology, biochemistry, and molecular biology.
What is structure and function definition?
Structure refers to something's form, makeup, or arrangement. Function refers to something's job, role, task, or responsibility. Determine means to cause, direct, or govern.
What is the structure of a cell?
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
What is the structure and function of the rough ER?
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
What is the structure and function of the rough ER quizlet?
Function: lipid and carbohydrate synthesis. Structure: has no ribosomes therefore it is smooth. Called the rough endoplasmic reticulum because it has ribosomes on the surface. It is found in both plant and animal cells.
What is the function of structural proteins?
For example, structural proteins maintain cell shape, akin to a skeleton, and they compose structural elements in connective tissues like cartilage and bone in vertebrates. Enzymes are another type of protein, and these molecules catalyze the biochemical reactions that occur in cells.
How is the structure of protein related to its function?
The unique amino acid sequence of a protein is reflected in its unique folded structure. This structure, in turn, determines the protein's function. This is why mutations that alter amino acid sequence can affect the function of a protein.
What are the enzymes responsible for transcription and translation?
The enzyme RNA polymerase transcribes DNA. This enzyme initiates transcription, joins the RNA nucleotides together, and terminates transcription.
What are the main steps involved in transcription briefly describe the process of transcription in a cell?
Transcription is the name given to the process in which DNA is copied to make a complementary strand of RNA. RNA then undergoes translation to make proteins. The major steps of transcription are initiation, promoter clearance, elongation, and termination.
What is the function of active transport in moving small molecules and ions across cell membranes?
Summary. Active transport is the energy-requiring process of pumping molecules and ions across membranes against a concentration gradient. Active transport processes help maintain homeostasis.
Why do passive and active transport mechanisms play a crucial role in all living organisms?
Active and passive transport are the two main biological processes that play a crucial role in supplying nutrients, oxygen, water and other essential molecules to the cells along with the elimination of waste products.
What is a structure of a cell?
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
What is structure a How does it function?
Structure refers to something's form, makeup, or arrangement. Function refers to something's job, role, task, or responsibility.
What is a function of a structure?
The structure function (also known as the proton structure function), like the fragmentation function, is a probability density function in physics. It is somewhat analogous to the structure factor in solid-state physics, and the form factor (quantum field theory).