Section 7-2 Eukaryotic Cell Structure

Question 1

Organelle

Answer 1

Little organ

Question 2

Function of nucleus

Answer 2

Contains nearly all the cell’s DNA and w/ coded instructions for making proteins

Question 3

Important molecule that nucleus contains

Answer 3

DNA

Question 4

Granular material visible within the nucleus is called

Answer 4

Chromatin

Question 5

Granular material in nucleus

Answer 5

Chromatin

Question 6

Chromatin consists of

Answer 6

DNA bound to protein

Question 7

Distinct threadlike structures

Answer 7

Chromosomes

Question 8

How are chromosomes and chromatin different?

Answer 8

Chromatin condenses to form chromosomes

Question 9

Most nuclei contains a small, dense region known as

Answer 9

Nucleolus

Question 10

What occurs in the nucleolus?

Answer 10

Assembly of ribosomes begins

Question 11

Nuclear envelope

Answer 11

Nucleus is surrounded by this.

Its pones allow material to move in and out of the nucleus

Question 12

Ribosomes

Answer 12

Proteins are assembled on these. They’re small particles of RNA

Question 13

Lysosomes

Answer 13

Break down organelles that have outlived their usefulness

Contain enzymes that break down lipids, carbohydrates, and proteins

Question 14

Vacuoles

Answer 14

Saclike structures that store material (water, salts, proteins, carbohydrates)

Question 15

Role of central vacuole in plants

Answer 15

Pressure makes it possible for plants to support heavy structures (leaves and flowers)

Question 16

Chloroplast and mitochondria contain their own genetic information in from of

Answer 16

Small DNA molecules

Question 17

Cytoskeleton

Answer 17

Network of protein filaments that helps the cell to maintain its shape

Question 18

Ribosome

Answer 18

Small particles of RNA and protein that produces protein following instructions from nucleus

Question 19

An internal membrane system in which components of cell membrane and some proteins are constructed

Answer 19

Endoplasmic reticulum

Question 20

Golgi Apparatus

Answer 20

Stack of membrane in which enzyme attach carbohydrates and lipids to proteins

Question 21

Lysosomes

Answer 21

Filled with enzyme used to break down food into particles that can be used

Question 22

Saclike structures that store materials

Answer 22

Vacuole

Question 23

Uses energy from sunlight to make energy rich food

Answer 23

Chloroplast

Question 24

Uses energy from food to make high energy compounds

Answer 24

Mitochondria

Question 25

Micro tubes function

Answer 25

Maintain cell shape, help build cilia and flagella, from centrioles in cell division

Question 26

Microfilament function

Answer 26

Support the cell, help cells move