CELLS AND TISSUES

Question 1

Carry out all chemical activities needed to sustain life

Answer 1

CELLS AND TISSUES

Question 2

the building blocks of all living things

Answer 2

Cells

Question 3

groups of cells that are similar in structure and function

Answer 3

Tissues

Question 4

are not all the same

Answer 4

Cells

Question 5

All _______ share general structures.

Answer 5

cells

Question 6

Three Main Regions of the Cell

Answer 6

• Nucleus
• Cytoplasm
• Plasma membrane

Question 7

Control center of the cell

Answer 7

The Nucleus

Question 8

Contains genetic material (DNA)

Answer 8

The Nucleus

Question 9

The Nucleus 3 Regions

Answer 9

• Nuclear membrane
• Nucleolus
• Chromatin

Question 10

Barrier of nucleus

Answer 10

Nuclear Membrane

Question 11

• Consists of a double phospholipid membrane

Answer 11

Nuclear Membrane

Question 12

Contain nuclear pores that allow for exchange of
material with the rest of the cell

Answer 12

Nuclear Membrane

Question 13

___________ contains one or more nucleoli

Answer 13

Nucleus

Question 14

Sites of ribosome production

Answer 14

Nucleoli

Question 15

Ribosomes then migrate to the cytoplasm through _____________.

Answer 15

Nuclear pores

Question 16

Composed of DNA and protein

Answer 16

Chromatin

Question 17

Scattered throughout the nucleus

Answer 17

Chromatin

Question 18

• Chromatin condenses to form chromosomes when the cell divides

Answer 18

Chromatin

Question 19

Barrier for cell contents

Answer 19

Plasma Membrane

Question 20

Double phospholipid layer
• Hydrophilic heads
• Hydrophobic tails

Answer 20

Plasma Membrane

Question 21

• Also contains protein,
cholesterol, and
glycoproteins

Answer 21

Plasma Membrane

Question 22

Plasma Membrane Specializations

Answer 22

• Microvilli
• Membrane junctions

Question 23

Finger-like projections that increase surface area for absorption

Answer 23

Microvilli

Question 24

• Tight junctions
• Desmosomes
• Gap junctions

Answer 24

• Membrane junctions

Question 25

Material outside the nucleus and inside the plasma membrane

Answer 25

Cytoplasm

Question 26

Fluid that suspends other elements

Answer 26

Cytosol

Question 27

Metabolic machinery of the cell

Answer 27

Organelles

Question 28

Non-functioning units

Answer 28

Inclusions

Question 29

What are the Cytoplasmic Organelles?

Answer 29

• Ribosomes • Endoplasmic reticulum (ER) - Rough and Smooth endoplasmic reticulum • Golgi apparatus

Question 30

Made of protein and RNA • Sites of protein synthesis • Found at two locations - • Free in the cytoplasm, Attached to rough endoplasmic reticulum

Answer 30

Ribosomes

Question 31

• Fluid-filled tubules for carrying substances

Answer 31

Endoplasmic reticulum (ER)

Question 32

Two types of ER

Answer 32

Rough Endoplasmic Reticulum Smooth Endoplasmic Reticulum

Question 33

Studded with ribosomes • Site where building materials of cellular membrane are formed

Answer 33

Rough Endoplasmic Reticulum

Question 34

Functions in cholesterol synthesis and breakdown, fat metabolism, and detoxification of drugs

Answer 34

Smooth Endoplasmic Reticulum

Question 35

• Modifies and packages proteins • Produces different types of packages -Secretory vesicles -Cell membrane components -Lysosomes

Answer 35

Golgi apparatus

Question 36

Contain enzymes that digest non-usable materials within the cell

Answer 36

Lysosomes

Question 37

Membranous sacs of oxidase enzymes • Detoxify harmful substances • Break down free radicals (highly reactive chemicals)

Answer 37

Peroxisomes

Question 38

• Replicate by pinching in half

Answer 38

Peroxisomes