Lesson 1: Cell Structure and Function Flashcards
is the process by which cells obtain food molecules to support their other activities.
Nutrition
is the process by which food particles are broken down into smaller soluble units suitable for cell use with the help of
enzymes.
Digestion
is the process by which cells absorb water, minerals and other materials essential to life from their environment.
Absorption
is the process by which all cells organize complex chemicals from simple building units or substances.
Biosynthesis
is the process by which by-products of all cell activities which are not needed for further cell functioning are eliminated.
Excretion
is the process by which insoluble, non-digested
particles are eliminated by the cell.
Egestion
is the process by which substances that are synthesized by the cells are expelled from the membrane. This elimination process helps in the functioning of the body
Secretion
is a process which includes the locomotion of cell by means of special structures like cilia or flagella.
Movement
is the process by which cells respond or react to external factors or conditions around them. Cells can alter their functions in response to changes their environment.
Irritability
is the process of breaking down food molecules into chemical energy needed by all cells in order to function.
Respiration
is a process by which a cell copies or replicates its DNA and increases its number by cell division. It gives rise to new cells as a result, organisms grow.
Reproduction
What are the three (3) principal parts of a cell?
- Cell membrane
- Cytoplasm
- Nucleus
is covered with a membrane that allows materials to pass in and out
nucleus
it contains DNA
control center
- is a semipermeable membrane that facilitate the movement of molecules inside and outside the plant or animal cell.
- is often pictured as fluid mosaic model.
cell membrane
is a viscous fluid or jelly like material where organelles are embedded.
Cytoplasm
- are called the “powerhouses” of cells.
- they produce much of the energy a plant or animal cell
needs to carry out its functions - converts energy
Mitochondria
What does ATP mean?
Adenosine Triphosphate
What does ADP mean?
Adenosine Diphosphate
is the storage area of the cell
Vacuole
is a series of tunnels throughout the cytoplasm.
Endoplasmic Reticulum
from one part of the cell to another that is why they are called as the transport center of the cell.
Transport Proteins
ribosome free and functions in detoxification of lipids.
Smooth