Analogy

Passive transport is like a door swinging freely on its hinges allowing people to move in and out without requiring energy. For example, osmosis is a passive transport process where water molecules move across a semi-permeable membrane from an area of high concentration to low concentration without the cell using energy.

Glycoproteins can be compared to a decorated Christmas tree, where the protein is the tree and the attached carbohydrates are the decorations. Another analogy is a cell's identification badge, where the protein component identifies the cell type and the carbohydrate component acts as a recognition signal for interactions with other molecules.

Yes, the analogy "cotton is to soft as brick is to hard" is correct. Cotton is known for its softness, while brick is known for its hardness, making them opposites in terms of texture. This analogy highlights the contrast between the two pairs of objects.

Analogies allow the comparison of simple, familiar things to explain new or more complex idea. For example, think of how water runs through a pipe, branching off in different directions to a kichen sink, a washing machine, and to a garden hose. Is it not similar to sap flowing up a stem from a root, along a branch, and into a leaf?

Analogies can provide a mental picture, based on familar things, of unfamiliar ideas.

Lock and key is an analogy of enzyme catalysis in a cellular reaction. The lock and key are compared directly to the substrate and enzyme, because of the high specificity of their physical shape.

Enzymes participate in the reaction they catalyze.

The reactant molecule (substrate) binds to the enzyme molecule at a particular location called the active site. (this is compared to the lock with keyhole)

The highly specific nature of an enzyme is due to very precisely defined arrangement of atoms in the active site(again, this is the lock in the analogy). The substrate molecule must have a matching shape (here is the key) that will fit into the active site.

The bond breaking and bond forming processes that transform the substrate into products occur while the substrate is bound to the active site of enzyme.

In other words its something like a jigsaw puzzle where the substrate fits into the enzyme. The reaction occurs and the substrate then leaves the enzyme as products.

( Not my work. Found it on Yahoo Answers.....Do not give me credit...Thought I should do this to help people out =] )

Edited answer for readability and clarity - thanks!

Smooth endoplasmic reticulum (ER) functions in lipid synthesis, detoxification of drugs and other harmful substances, and regulation of calcium levels in the cell. It lacks ribosomes on its surface, giving it a smoother appearance compared to rough ER.

You can compare it to aplane like this a nucelous would be the center of everything like the command center or piolits the mitochandria would be the engine because it gives the plane power the flagella would be the motors because it moves the plane the cytoplasm would be the floor of the plane the cell wall would be the outer of the plane and so on

The chloroplast is an organelle found in plant cells that is responsible for photosynthesis, the process by which plants convert sunlight into energy. It contains chlorophyll, a pigment that captures light energy and helps plants produce glucose.

Grana (scarlet) is compared with an obscure and dirty counscience which has permeated by sinful behavior. The bible says is your sins be as scarlet (grana), they shall be as white as snow; though they be red like crimson, they shall be as wool. Isaiah 1.18.

Pastor Felix II

deluge.

Exocytosis is like a delivery person dropping off a package at your doorstep. In exocytosis, cells release molecules by enclosing them in vesicles that fuse with the cell membrane, similar to how a delivery person brings a package to your home and leaves it at your door.

Lipids are like the insulation on a wire, providing structure and protection for cells. Just as insulation helps regulate the flow of electricity, lipids help regulate the flow of nutrients and energy in the body.

The chloroplast is simply where food is made in a cell. Examples of analogies for chloroplast:

~"Mess Hall in the Lightning Thief Book"

~A cafeteria

~Food court

~Grocery Store

~A hunter-Catches food and cooks it

~I like to describe chloroplasts as breakfast take out. The individual pancakes are thylakoids and the stack of pancakes is the granum. The syrup is the stroma. The stroma lamellae are strips of bacon. The container is the inner membrane and the take out bag is the outer membrane. (Copyright :)

Hope it helped :)

Light can be thought of as a guide leading us out of darkness, illuminating the path ahead and revealing hidden truths. Just as light is essential for vision and understanding, it also symbolizes hope, clarity, and knowledge in our lives. Like a beacon, light has the power to inspire, uplift, and bring warmth to our hearts.

Your body is composed of matter, such as atoms and molecules. Matter makes up your tissues, organs, and systems that allow your body to function. Matter interacts with and influences your body's processes and functions, such as providing energy through the food you eat and enabling communication between cells.

Analogies for chromoplasts could be artist's palette where colors are stored for later use, or a storage unit for pigments in plants.

Better is to worst as slower is to fastest.

diet is related to "thinner" like weight lifting is related to "stronger"

An analogy is a comparison between two things that are alike or similar in some way. An analogy for quiet is "as quiet as a mouse" since mice are generally very quiet creatures.

The cytosol is like the atmosphere inside a house - it's the fluid-filled space where various organelles operate, similar to how rooms in a house have specific functions. Just as the atmosphere in a house enables different activities to happen simultaneously, the cytosol provides a medium for various cellular processes to take place within a cell.

Filaments are like the threads in a woven fabric, providing structure and support. Just as threads are interconnected to create a fabric, filaments in biology are interconnected to form structures like muscle fibers or nerve cells.

A power plant which gives energy to the community.