Body Cells & Tissues - True Or False

Glucose is a source for the production of ATP because it is broken down through a series of chemical reactions in the process of cellular respiration. This breakdown of glucose releases energy that is used to produce ATP, which is the main energy currency of cells. Therefore, glucose serves as a fuel source for the production of ATP, making the statement "Glucose is a source for the production of ATP" true.

Proteins are indeed synthesized in ribosomes. Ribosomes are cellular structures responsible for the process of protein synthesis, where the genetic information encoded in the DNA is transcribed into mRNA and then translated into a specific sequence of amino acids to form a protein. This process occurs in the cytoplasm of the cell, with ribosomes serving as the site where the mRNA is read and the amino acids are assembled into a polypeptide chain, ultimately forming a functional protein. Therefore, the statement "Proteins are synthesized in ribosomes" is true.

Simple epithelia are classified into three types: simple squamous, simple cuboidal, and simple columnar. Simple squamous epithelium consists of a single layer of flattened cells, simple cuboidal epithelium consists of a single layer of cube-shaped cells, and simple columnar epithelium consists of a single layer of tall, column-shaped cells. Therefore, the statement that simple epithelia have three types is true.

All nerve cells have an axon, which is a long, slender projection that conducts electrical impulses away from the cell body. The axon is responsible for transmitting signals to other cells or tissues. Therefore, the statement "All nerve cells have an axon" is true.

Erythrocytes, also known as red blood cells, are responsible for transporting oxygen throughout the body. They contain a protein called hemoglobin, which binds to oxygen in the lungs and releases it to tissues and organs that need it. This process is crucial for delivering oxygen to cells and ensuring proper functioning of the body. Therefore, the statement "Erythrocytes transport oxygen" is true.

Cell respiration is the process by which cells break down glucose molecules to release energy in the form of ATP. This process occurs in the mitochondria of cells and involves a series of biochemical reactions. Glucose is converted into carbon dioxide and water, and in the process, energy is released. This energy is then used by the cell to carry out various functions. Therefore, the statement that the release of energy from glucose is done through cell respiration is true.

Cartilage is a type of connective tissue that provides support and flexibility to various structures in the body. The ground substance of cartilage refers to the gel-like material that fills the spaces between the cells. This ground substance is composed of water, proteoglycans, and glycosaminoglycans, which give cartilage its unique properties. One of these properties is high resilience, meaning that cartilage can withstand compression and quickly return to its original shape after being deformed. Therefore, the statement that the ground substance of cartilage has high resilience is true.

Stratified squamous epithelia is a type of tissue that consists of multiple layers of flat cells. It is found in the epidermis, which is the outermost layer of the skin. This type of epithelium provides protection against mechanical stress, environmental factors, and microbial invasion. Therefore, the statement "Stratified squamous epithelia is found in the epidermis" is true.

Elastin fibers are fine-branched and yellow in color. This means that they have a complex network of branches and are typically yellow in appearance.

The statement is true because the average size of a red blood cell is indeed around 8 micrometers. Red blood cells are the most common type of blood cell and are responsible for carrying oxygen throughout the body. They have a unique biconcave shape and are small enough to pass through tiny capillaries. The average diameter of a red blood cell is approximately 7.8 micrometers, making the given statement accurate.

The digestive tract is lined with simple cuboidal and columnar epithelial cells. These types of cells are well-suited for absorption and secretion, which are important functions in the digestive system. The cuboidal epithelium is found in areas where secretion and absorption occur, while the columnar epithelium is found in areas where absorption is the primary function. Therefore, the statement that the digestive tract contains simple cuboidal and columnar epithelia is true.

it packages material for export

great amount to provide enery to contract

The statement "Plasma is yellow" is true. Plasma, which is the fourth state of matter, can emit various colors depending on its temperature and composition. At high temperatures, plasma can emit a yellowish color. This is observed in phenomena such as lightning, where the high energy causes the gas to ionize and emit a yellow glow. Additionally, in plasma TVs, the gas inside the screen is ionized to produce a yellowish color. Therefore, the statement is correct.

During telophase, the nuclear membrane reforms around each set of chromosomes, resulting in the formation of two separate nuclei. This process is essential for the division of genetic material and the formation of two daughter cells. Therefore, the statement "During telophase, there are two nuclear membranes" is true.

generous intercellular material

A synapse is a junction between two nerve cells, or between a nerve cell and a muscle cell. It is responsible for transmitting signals from one cell to another. In the given statement, it is mentioned that a synapse can involve a muscle cell with another muscle cell. This is true because synapses can occur between muscle cells, allowing for coordination and communication between different muscle fibers. Therefore, the correct answer is true.

is to break down food into small molecules that can be used by body cells / then defecation

The statement "The endocrine gland is a ductless gland" is true. Endocrine glands are a type of glands that secrete hormones directly into the bloodstream, rather than through ducts. These hormones then travel throughout the body to target cells or organs, where they regulate various bodily functions. Since endocrine glands do not have ducts, they are considered ductless glands.

either unicellular or multicellular

Lysosomes are membrane-bound organelles containing digestive enzymes that break down various molecules, including proteins, lipids, and carbohydrates. These enzymes are responsible for the digestion and recycling of cellular waste materials, as well as the breakdown of ingested materials during the process of phagocytosis. Therefore, it is true that digestive enzymes are contained in lysosomes.

Translation is the process in which the genetic information carried by mRNA is used to synthesize proteins. During translation, the ribosomes read the mRNA sequence and assemble the corresponding amino acids to form a protein. Therefore, the given statement is correct as it accurately describes the process of translation.

Muscle cells are polygonal in cross section because they have multiple sides or angles when viewed from a cross-sectional perspective. This shape allows muscle cells to fit tightly together, maximizing the amount of muscle tissue that can be packed into a given space. Additionally, the polygonal shape provides structural support and stability to the muscle fibers, enabling them to withstand the forces generated during muscle contractions.

Fibroblasts are indeed cells that are found in loose connective tissue. They are responsible for producing the extracellular matrix, which provides structural support to the tissue. Fibroblasts also play a crucial role in wound healing by producing collagen and other components necessary for tissue repair. Therefore, the statement "Fibroblasts are cells present in loose connective tissue" is true.

Vesicle transport is a cellular process that involves the movement of vesicles, small membrane-bound sacs, within a cell. This process requires energy in the form of ATP (adenosine triphosphate) to power the movement of the vesicles along the cytoskeleton. Therefore, the statement "Vesicle Transport does not require energy" is false.

rich blood supply

secrete hormones into blood

Cardiac muscle cells are uninucleate, meaning they have only one nucleus. This is because cardiac muscle cells are specialized cells found in the heart, and they need to function efficiently in order to pump blood effectively. Having only one nucleus allows for better coordination and synchronization of contractions, ensuring the heart beats in a coordinated manner. Additionally, having a single nucleus allows for more space within the cell for contractile proteins and other components necessary for muscle function.

from high to low

Exocytosis is a cellular process in which materials are transported out of the cell through the fusion of vesicles with the plasma membrane. The Golgi complex plays a crucial role in exocytosis by modifying, sorting, and packaging molecules into vesicles for transport. These vesicles then fuse with the plasma membrane, releasing their contents outside the cell. Therefore, it is correct to say that exocytosis involves the Golgi complex.

it is

An erythrocyte does not contain a nucleus nor organelles

endocytosis

water moves from the hypotonic solution (inside the cells) to the hypertonic solution (outside the cells) so the cells would shrink

mostly collagen

when the solute molecules are too large

ribosomes

golgi complex does so

dense connective tissue - regular

elastic cartilage

it is

it's the production of mRNA from DNA

the second characteristic that makes it different is its ability to contract and relax

in discs in spine

les seuls à posséder un nucleus et organelles

with cilia

interphase

are the small fibres that make muscles contract

elastin fibres do so

microvilli do so