Gen Zoo Chap 2

Question 1

Basic unit of life

Answer 1

Cell

Question 2

single-celled organism

Answer 2

Unicellular

Question 3

have more than one cell

Answer 3

Multicellular

Question 4

do not have nucleus

Answer 4

Prokaryotes

Question 5

do not have nucleus

Answer 5

Prokaryotes

Question 6

have nucleus

Answer 6

Eukaryotes

Question 7

A selectively permeable enclosing the cell. Made by phospholipid bilayer

Answer 7

Plasma Membrane

Question 8

towards inside

Answer 8

Hydrophobic

Question 9

towards outside

Answer 9

Hydrophilic

Question 10

All contents inside the cell other than nucleus

Answer 10

Cytoplasm

Question 11

Most prominent organelle which contains of
linear chromosomes suspended

Answer 11

Nucleus

Question 12

solution where nucleus
suspended

Answer 12

Nucleoplasm

Question 13

specialized parts of certain
chromosomes that carry multiple copies of DNA
used to synthesize RNA

Answer 13

Nucleolus

Question 14

double-layer membrane
enclosing the nucleus and contains pores to allow molecules to move between nucleus and cytoplasm

Answer 14

Nuclear envelope

Question 15

Network of membranes throughout the
cytoplasm

Answer 15

Endoplasmic Reticulum

Question 16

(ribosomes attached) protein
synthesis occurs

Answer 16

Rough ER

Question 17

(no ribosomes attached)
Lipid/phospholipid synthesis; detoxify cell of
harmful substances

Answer 17

Smooth ER

Question 18

Necessary for protein synthesis . Made of 2 small subunit and is numerous

Answer 18

Ribosomes

Question 19

Composed of stack of membranous vesicles

Answer 19

Golgi complex

Question 20

Function in storage, modification and packaging of polypeptide and protein products produce by the rough ER

Answer 20

Golgi complex

Question 21

Used to be an extension of the nuclear envelope and used to be part of the endoplasmic
reticulum before detaching

Answer 21

Golgi complex

Question 22

Detached/formed by Golgi complex

Answer 22

Lysosomes

Question 23

Contains enzyme involved in breaking down
foreign material

Answer 23

Lysosomes

Question 24

engulfing of cell

Answer 24

Phagocytosis

Question 25

breakdown injured/diseased cell

Answer 25

Autophagy

Question 26

programmed cell death (kill itself)

Answer 26

Apoptosis

Question 27

Powerhouse of the cell. Produce ATP (for energy-transfer)

Answer 27

Mitochondria

Question 28

Motile extensions of the cell surface * Used for locomotion * Flagellum is longer

Answer 28

Cilia/Flagella

Question 29

Made of layers of tightly packed cells that line the surface of the body, organs, blood vessels, respiratory system and all the body cavities

Answer 29

Epithelial tissue

Question 30

Made up of cells containing contractile filaments (muscle fibers) * Can lengthen or shorten

Answer 30

Muscular tissue

Question 31

internal organs like stomach and intestine

Answer 31

Smooth (involuntary)

Question 32

Attached to the bones; most common

Answer 32

Skeletal (voluntary)

Question 33

walls of the heart; for pumping blood

Answer 33

Cardiac (involuntary)

Question 34

Responsible for holding tissues together * Provide framework

Answer 34

Connective Tissue

Question 35

Made up of nerve cells called neurons that together form nervous system

Answer 35

Nervous tissue