The cells

Question 1

Cells are….

Answer 1

The basic unit of life

Question 2

The cell theroy is…

Answer 2

All living organisims are made of cells.
The cell is the basic unit of structure and function in living organisms.
Cells arise from exsisting cells.

Question 3

The two types of cells are called

Answer 3

Prokaryotic cell (no nucleus or ohter distinct membrane-bound organelles) and Eukaryotic cell (Membrane-bound nucleus and organelles)

Question 4

All cells have:

Answer 4

Plasma membrane, Cytoplasm, and Ribosomes.

Question 5

Ribosomes function

Answer 5

Protein synthesis

Question 6

Eukaryotic cells are divided into:

Answer 6

Plant and animals cells

Question 7

Cell wall is on … and function

Answer 7

Plant cells and they have a rigid cell wall

Question 8

The nuclear membrane is

Answer 8

A highly porous membrane that separates the nucleous from the rest of the cell.

Question 9

Chromatin

Answer 9

Long strands of clusters of DNA and proteins

Question 10

Endoplasmic reticulum

Answer 10

An organelle composed of an extensive network of folded networks the performs several tasks with in a cell.

Question 11

Rough ER

Answer 11

Endoplasmic reticulum that is dotted with ribosomes.

Question 12

Smooth ER

Answer 12

Endoplasmic reticulum that has no ribosomes.

Question 13

Golgi apparatus

Answer 13

The organelles where proteins and lipids are stored and then modified to suit the needs of the cell.

Question 14

Vacuole

Answer 14

Larger membrane-bound organelles used for storage of food and water or waste.

Question 15

Vesicle

Answer 15

Smaller membrane bound organelles used mainly fo transport of food, waste, or products synthesized for secreation.

Question 16

Sectory Vesicle

Answer 16

Vesicle that holds products of biosynthesis and transports them to the plasma membrane for secretion.

Question 17

Central vacuole

Answer 17

A large vacuole that rests at the center of most plant cells and is filled with water.

Question 18

Lysosome

Answer 18

The organells in animals cells responsible for hydrolysis reactions that break down proteins, carbohydrates, and some lipids.

Question 19

Peroxisome

Answer 19

A cell organell containing enzymes that catalyze the decomposition of fatty acids and hydrogen peroxide.

Question 20

Mitochondria

Answer 20

Double-membrane-bound organelles in which nutrients are converted to energy.

Question 21

Plastids

Answer 21

Doublepmembrane-bound organelle found in the cells of plants, algae, and some protozoa, generally involved in either the manufacture or storage of food.

Question 22

Choroplasts

Answer 22

Plastids containing the green pigment, chlorophyll used in photosynthesis.

Question 23

Chromoplasts

Answer 23

Plastids contiaining yellow, orange, or red pigment used in photosynthesis.

Question 24

Leucoplasts

Answer 24

Nonpigmented plastids that store starches or oils.

Question 25

Cytoskeleton

Answer 25

A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement.

Question 26

Microfilements

Answer 26

Fine, threadlike proteins found in the cell's cytoskeleton

Question 27

Intermediate filaments

Answer 27

Threadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments.

Question 28

Microtubles

Answer 28

Spiral strands of protien molecules that form a tubelike structure.

Question 29

Centrioles

Answer 29

Paired organelles (positioned at right angles to each other) that organize fibers required for cell division; found in animal cells

Question 30

Centrosome

Answer 30

A small region near the nucleus that is the main organizing site for microtubules; in animal cells it contains the 2 centrioles.

Question 31

Phospholipid

Answer 31

A lipid in which one of the fatty acid molecules has been prlaced by a molecule that contains a hydrophilic phosphate group.

Question 32

Passive transport

Answer 32

Movement of molecules through the plasma membrane without the need for energy input.

Question 33

Active Transport

Answer 33

Movement of molecules through the plasma membrane added by a process that requires energy input.

Question 34

Concentration

Answer 34

A measurment of how much solute exists wihtin a certain volume of solvent.

Question 35

Osmosis

Answer 35

The diffusion of water through a semipermeable membrane from an area of high water concentration to low water concentration.

Question 36

Plasmolysis

Answer 36

Collapse of a walled cells's cytoplasm due to a lack of water.

Question 37

Cytolysis

Answer 37

The rupturing of a cell due to excess internal pressure.