What are cell components and their functions?
What’s found inside a cell
| Organelle |
Function |
| Nucleus |
DNA Storage |
| Mitochondrion |
Energy production |
| Smooth Endoplasmic Reticulum (SER) |
Lipid production; Detoxification |
| Rough Endoplasmic Reticulum (RER) |
Protein production; in particular for export out of the cell |
How are the organelles in a cell similar to the organs in a human body?
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
What are the three basic components of human cells and the four basic processes and functions common to all cell types?
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) …
What part of the human body is like ribosomes?
The ribosomes of a cell can be well represented as the muscle tissue. Since the ribosomes can be found in the cytoplasm, the muscle tissue can be found inside the muscle where it represents the cytoplasm.
What part of the human body is like the Centriole?
The centrioles are like sperm because they assist in cell division (reproduction), and sperm from male humans allow female eggs to be fertilized which enables humans to reproduce. Flagella is like the human vertebrae because flagella assist in the movement of the cell, and the vertebrae allows humans to move.
What organ is the mitochondria like?
digestive system
What organ in your body is most like the lysosome?
stomach
Why do liver cells have lots of mitochondria?
For example, liver cells and muscle cells contain a lot of mitochondria. Muscle cells are assiciated with a large number of mitochondria as they require more ATP (energy) to function than other cells. They need this because of their frequent contraction and relaxation, which requires more ATP than average cells.
What part of the cell is most like the brain?
Explanation: The nucleus is called the “brain” of the cell because it holds the information needed to conduct most of the cell’s functions. Other molecules make proteins from that information on a regular basis – each moment of our lives.
Which organ in the cell works like brain?
It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate’s body. In a human, the cerebral cortex contains approximately 14–16 billion neurons, and the estimated number of neurons in the cerebellum is 55–70 billion….Primates.
Which is longest cell?
Nerve cells
What is the brain of cell?
The nucleus is considered to be one of the most important structures of eukaryotic cells as it serves the function of information storage, retrieval and duplication of genetic information. It contains chromosomes which house the DNA. The cell nucleus acts like the brain of the cell.
What are the 3 types of the brain?
The Architecture of the Brain The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain.
What is known as suicidal bags of cell?
Lysosomes are single membrane organelles found in eukaryotic cells. Back in 1959, Christian de Duve gave them their now famous nickname, ‘suicidal bag’, in an attempt to underline their degradative properties.
What Cell is a real powerhouse?
Mitochondria
What cell is strong and stiff?
Cell Parts Review
| A |
B |
| I’m strong and stiff, getting through me is tough. I’m found only in plants, but I guess that’s enough. |
cell wall |
| My name means “colored bodies” and I contain DNA. I pass on traits to new cells in a systematice way. |
chromosomes |
What cell contains DNA?
cell nucleus
What cell transports proteins?
The Endoplasmic Reticulum or ER is an extensive system of internal membranes that move proteins and other substances through the cell. The part of the ER with attached ribosomes is called the rough ER. The rough ER helps transport proteins that are made by the attached ribosomes.
What are three types of transport proteins?
Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. The three main kinds of passive transport are diffusion, osmosis, and facilitated diffusion (see the Figure below).
What are the two types of transport proteins?
There are two classes of membrane transport proteins—carriers and channels. Both form continuous protein pathways across the lipid bilayer. Whereas transport by carriers can be either active or passive, solute flow through channel proteins is always passive.
How are proteins transported across the cell membrane?
Facilitated diffusion uses integral membrane proteins to move polar or charged substances across the hydrophobic regions of the membrane. Carrier proteins aid in facilitated diffusion by binding a particular substance, then altering their shape to bring that substance into or out of the cell.
What passes through channel proteins?
Water molecules and ions move through channel proteins. Other ions or molecules are also carried across the cell membrane by carrier proteins. The ion or molecule binds to the active site of a carrier protein. The carrier protein changes shape, and releases the ion or molecule on the other side of the membrane.
Does facilitated diffusion use ATP?
Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.
What are the 4 ways substances move across the cell membrane?
This movement occurs through several mechanisms.
- Diffusion. One method of movement through the membrane is diffusion.
- Osmosis. Another method of movement across the membrane is osmosis.
- Facilitated diffusion.
- Active transport.
- Endocytosis and exocytosis.
What is the major difference between facilitated diffusion and simple diffusion?
In simple diffusion, the molecules can pass only in the direction of concentration gradient. In facilitated diffusion, the molecules can pass both in direction and opposite of the concentration gradient. Simple diffusion permits the passage of only small and nonpolar molecules across the plasma membrane.
What is the major difference between facilitated diffusion and simple diffusion quizlet?
the only difference is that simple diffusion will only travel through the phospholipid bilayer and and facilitated diffusion will go only through a non protein channel. Phospholipids: These lipids are called phospholipids because instead of the usual three fatty acid chains there are only two.
What are examples of simple diffusion?
Example of Simple Diffusion In the cell, examples of molecules that can use simple diffusion to travel in and out of the cell membrane are water, oxygen, carbon dioxide, ethanol and urea. They pass directly through the cell membrane without energy along the concentration gradient.
What are two types of facilitated diffusion?
Facilitated diffusion is performed by various types of proteins that are embedded within the cell membrane. While there are hundreds of different proteins throughout the cell, only two types are found associated with facilitated diffusion: channel proteins and carrier proteins.
