Cells

Question 1

Thin, flexible barrier around the cell?

Answer 1

Cell Membrane

Question 2

Tendency of substances to move from an area of high concentration to low concentration?

Answer 2

Diffusion

Question 3

What type of diffusion requires no energy?

Answer 3

Passive Diffusion

Question 4

Cell Membrane is _______________. (Let’s some things in, but not others)

Answer 4

Selectively Permeable

Question 5

What is the diffusion of water?

Answer 5

Osmosis

Question 6

Type of solution where concentrations are equal?

Answer 6

Isotonic

Question 7

Solution where concentration of solute is lower in the solution than the cell?

Answer 7

Hypotonic

Question 8

Solution where concentration of solute is higher in the solution than the cell?

Answer 8

Hypertonic

Question 9

Movement of specific molecules through protein channels?

Answer 9

Facilitated Diffusion

Question 10

Movement of materials across the cell membrane against a concentration gradiant?

Answer 10

Active Transport

Question 11

Cell Structure that provides structure and support for the cell?

Answer 11

Cell Wall

Question 12

Specialized structures in the cell that perform specific functions?

Answer 12

Organelles

Question 13

Cell structure that helps the cell maintain its shape?

Answer 13

Cytoskeleton

Question 14

Cell structure that controls all cell processes?

Answer 14

Nucleus

Question 15

Cell structure that assembles proteins?

Answer 15

Ribosomes

Question 16

Cell structure that is a clear, jelly-like fluid that fills the cell?

Answer 16

Cytoplasm

Question 17

Cell structure that synthesizes lipids for the cell membrane?

Answer 17

Smooth Endoplasmic Reticulum

Question 18

Cell structure that chemically modifies ribosomes?

Answer 18

Rough Endoplasmic Reticulum

Question 19

Cell structure that removes old organelles and debris, and also breaks down food into particles?

Answer 19

Lysosomes

Question 20

Cell structure that is a sac-like structure used for the storage of water, proteins, carbs, salts?

Answer 20

Vacuole

Question 21

Cell structure responsible for using energy from the sun in order to create energy-rich food molecules via Photosynthesis?

Answer 21

Chloroplast

Question 22

Cell structure that makes energy compounds and is known as the “powerhouse” of the cell?

Answer 22

Mitochondria

Question 23

Where do humans inherit their mitochondria?

Answer 23

Their Mother

Question 24

What is the main difference in Prokaryotes and Eukaryotes?

Answer 24

• Prokaryotes lack a nucleus

* Eukaryotes have a nucleus

Question 25

What are the three main things prokaryotic cells consist of?

Answer 25

* Cell Membrane * Cell Wall * Ribosomes

Question 26

Four types of active transport?

Answer 26

1. Pumping ions in or out of the cell 2. Endocytosis 3. Phagocytosis 4. Exocytosis

Question 27

What is Endocytosis?

Answer 27

Taking materials into the cell by means of pockets in the cell membrane.

Question 28

What is Phagocytosis?

Answer 28

Extensions of cytoplasm surround and engulf large particles.

Question 29

What is Exocytosis?

Answer 29

Removal of large amounts of material from a cell.

Question 30

Dense region in the nucleus where ribosomes are made?

Answer 30

Nucleolus

Question 31

Three parts of Cell Theory?

Answer 31

1. All living things are composed of cells. 2. Cells are the basic units of structure and function in living things. 3. New cells are produced from existing cells.