Cells

Question 0

It contains gentic material of cell (DNA) and nucleoli; site of RNA synthesis and ribosomal subunit assembly.

Answer 0

Nucleus

Question 1

It is the basic unit of all organisms

Answer 1

Cell

Question 2

Site of protein synthesis.

Answer 2

Ribosomes

Question 3

It has many ribosomes attached; site of protein synthesis.

Answer 3

Rough ER

Question 4

Facilitates the movement of chromosomes during cell division.

Answer 4

Centrioles

Question 5

It is the network of microtubules; extends from the centrosome during cell division; distributes DNA equally to the resulting daughter cells.

Answer 5

Spindle fibers

Question 9

Numerous short, hairlike organelles; move substances over surfaces of certain cells

Answer 9

Cilia

Question 11

It increases surface area of certain cells; tiny, fingerlike projectings of the cell that increases the membranes surface area for more absorption; it can be seen superiorly; it is responsible for locomotion.

Answer 11

Microvilli

Question 12

Contains enzymes that digest material taken into the cell.

Answer 12

Lysosome

Question 14

Network of membranoustubesand canals winding through the interior of cell; manufactures molecules that make up cellular membranes

Answer 14

ER

Question 15

It is the living material surrounding the nucleus.

Answer 15

Cytoplasm

Question 16

Outermost component of a cell; acts as a selective barrier that determines what moves into and out of the cell; plays a role in communication bet cells

Answer 16

Cell membrane

Question 17

Substances outside the cell

Answer 17

Extracellular

Question 18

Site of lipid synthesis; participates in detoxification.

Answer 18

Smooth ER

Question 20

Functions of the cell

Answer 20

Cell metabolism and energy use; synthesis of molecules such as proteins, nucleic acids, and lipids; communication; reproduction and inheritance

Question 21

Site of aerobic respiration and the major site of ATP synthesis or energy conversion.

Answer 21

Mitochondrion/ Mitochondria

Question 22

Movement INTO cells by vesicles /// movement OUT of cells by vesicles

Answer 22

Endocytosis /// exocytosis

Question 23

The folds of the inner membrane in mitochondria called _______?

Answer 23

Cristae

Question 24

Part lf an kntercellular communication system that enables cell recognition and coordination of the activities of cells

Answer 24

Receptor molecules

Question 25

Tiny nucleus

Answer 25

Nucleolus

Question 26

Contains materials produced in the cell; formed by the golgi apparatus; secreted by exocytosis.

Answer 26

Secretory vesicle

Question 27

It supports cytoplasm; assists in cell division and forms components of cilia and flagella.

Answer 27

Microtubule

Question 28

Water loving // water fearing

Answer 28

Hydrophilic // hydrophobic

Question 29

Generally composed of one or more substances called solute.

Answer 29

Solution

Question 30

Movement from an area of higher concentration to an area of lower concentration.

Answer 30

Diffusion

Question 31

Differce in the concentration of a solute in a solvent bet two points divided by th distance bet two points

Answer 31

Concentration gradient

Question 32

Channel that allows ions to pass through

Answer 32

Leak channel

Question 33

Channel that limits the movement of ions across the membrane by opening and closing

Answer 33

Gated channel

Question 34

It is the diffusion of water across a permeable membrane from a region of higher water concentration to lower water concentration.

Answer 34

Osmosis

Question 35

Breaks down fatty acids, amino acods, and hydrogen peroxide

Answer 35

Peroxisomes

Question 36

Supports cytoplasm and organnels and it is involved with cell movements; gives shape to the cell

Answer 36

Cytoskeleton

Question 37

Hereditary material of the cell and controls cell activities

Answer 37

DNA

Question 38

The force required to prevent movement of water across a selectively permeable membrane

Answer 38

Osmotic pressure

Question 39

Membranous bubbles that may be formed by golgi apparatus

Answer 39

Vesicles

Question 40

Movement of all particles of matter

Answer 40

Brownian motion

Question 41

It is a carrier mediated transport process that moves substances into or out of cells from higeher to a lower concentration of substance

Answer 41

Facilitated diffusion

Question 42

It has the same potential osmotic pressure

Answer 42

Isotonic

Question 43

Solution with higher osmotic pressure ( lower water concentration)

Answer 43

Hypertonic

Question 44

Lower osmotic pressure ( higher water concentration)

Answer 44

Hypotonic

Question 45

Substances inside the cell

Answer 45

Intracellular

Question 46

It is the specialized structures within the cells.

Answer 46

Organelles

Question 47

Studies of the arrangement of molecules in the cell membrane have given rise to a model of its structure called_____

Answer 47

Fluid mosaic model

Question 54

It is the dense area of cell fluid near the nucleus.

Answer 54

Centrosome

Question 55

It propels sperm cells; single long , hairlike organelles

Answer 55

Flagella

Question 58

Modifies protein structure and packages proteins in secretory vesicles; appears as a stack of flattened sacs.

Answer 58

Golgi apparatus