Shared Flashcard Set

Details

Taudel Cells and Organelles
Cell theory, organelles, organization, and life processes
38
Biology
9th Grade
11/06/2009

Additional Biology Flashcards

 


 

Cards

Term
homeostasis
Definition
a constant internal environment, the goal of metabolism
Term
metabolism
Definition
the sum of all the life processes
Term
reproduction
Definition
the process by which new organisms are made, not required for the survival of the individual organism
Term
respiration
Definition
the process by which energy molecules are made, carried out in the cytoplasm and mitochondria
Term
regulation
Definition
the process by which the life activities are controlled and coordinated
Term
transport
Definition
the process by which materials are absorbed and distributed (moved around)
Term
growth
Definition
the process by which cells increase in size and/or number
Term
synthesis
Definition
the process by which complex (big) molecules are produced from simple (small) molecules
Term
nutrition
Definition

the process by which organisms obtain and process food.

For heterotrophs, the process includes ingestion, digestion, and egestion.

For autotrophs, the process may include photosynthesis.

Term
excretion
Definition
the process by which metabolic wastes are removed from the cell
Term
The three parts of the cell theory
Definition

1. All living things are made of cells.

2. Cells are the basic unit of structure and function/cells carry out the life processes.

3. Cells come from other (pre-existing) cells.

Term
Exceptions to the cell theory
Definition

1. Viruses are not made of cells.

2. Chloroplasts and mitochondria contain their own DNA and reproduce on their own.

3. The first cell did not come from nay other cell.

Term
cell organization
Definition

cell organelles

cells

tissues

organs

organ systems

organism

Term
plant cell
Definition
[image]
Term
animal cell
Definition
[image]
Term
bacterial cell
Definition
[image]
Term
organelle
Definition
cell structures that carry out different jobs (the life processes)
Term
cell wall
Definition

the structure that provides protection, support, and shape for the plant cell.

Not found in animal cells.

Term
cell membrane
Definition

a double layer of phospholipids that controls the movement of materials into and out of the cell.

Directly involved in cell transport.

Term
chloroplast
Definition

the structure in plant cells that carries out photosynthesis (makes food).

Directly involved in the process of nutrition.

Term
mitochondria
Definition

the structure responsible for making energy molecules for the cell

Directly involved in the process of respiration

Term
centriole
Definition
the structure found only in animal cells that is involved in cell division.
Term
cytoplasm
Definition

the jelly-like substance in cells in which the organelles are found.

Most of the life processes take place here.

Directly involved in the process of transport.

Term
nucleus
Definition

the control center of the cell

the brain

the boss

contains the genetic information for eukaryotic cells

Directly involved in the process of regulation.

Term
eukaryotic
Definition
cells in which their genetic information (DNA) is contained within a nucleus
Term
prokaryotic
Definition
cells in which the genetic information is not contained in a nucleus, rather the genetic information is found in the cytoplasm
Term

ER

endoplasmic reticulum

Definition

a series of channels that transport materials throughout the cell.

Directly involved in the process of transport

Term

Golgi body

Golgi apparatus

Definition
the structure that packages and secretes materials
Term
vacuole
Definition
the structure that stores water, wastes, and food
Term
ribosomes
Definition

the structure where protein synthesis takes place

Directly involved in synthesis.

(Enzymes are also made here, enzymes are examples of proteins)

Term
lysosome
Definition
the structure that contains digestive enzymes, breaks things down in the cell
Term
puberty
Definition
the time when hormones produce physical changes to the body so that it can produce gametes
Term
secondary sex characteristics
Definition
the changes that occur in the body during puberty like the growth of facial, underarm, and pubic hair
Term
Scrotum
Definition
A sac that acts like a pocket from a male's abdomen that keeps testes two to five degrees cooler than normal body temperature
Term
Urethra
Definition
a tube inside the penis that carries urine or semen
Term
Penis
Definition
a male organ adapted for internal fertilization
Term
semen
Definition
a mixture of fluids and sperm
Term
sperm
Definition
male sex cells, also known as male gametes
Supporting users have an ad free experience!