Chapter 1 Lesson 2

Question 1

Cell

Tissue

Answer 1

The basic unit of life

A group of similar cells that work together to perform as specialized function. There are 4 types of tissue: epithelial, connective, muscle, and nervous tissue

Question 2

Organ

Organ System

Answer 2

A group of Tissues that carry out a specialized function of the body

2 or more organs that work together to perform body functions

Question 3

Cell differentiation

Answer 3

The process by which cells become specialized in structure and function

Question 4

Neurons

Answer 4

Specialized cells that can send electrical and chemical signals . ( The basic unit of the nervous system )

3 types of neurons:
Sensory neurons - detect stimuli
Motor neurons - stimulate muscles to contract
Interneurons - receive and process information from sensory neurons and send signals to motor neurons

Question 5

Muscle Cells

Answer 5

Contract when stimulated by the nervous system

2 types of muscle
Skeletal muscle - voluntary
Smooth muscle - involuntary

Question 6

Cell Membrane

Cytoplasm

Organelles

Answer 6

The structure that encloses the cell and controls the movement of materials into and out of the cell

The jelly - like material inside the cell

Specialized structures in the cell that perform distinct processes in the cell

Question 7

Nucleus

Endoplasmic Reticulum (ER)

Ribosomes

Answer 7

The organelle where genetic information (DNA) is stored

The organelle where the production of proteins occurs

Tiny organelles that help make proteins

Question 8

Golgi Apparatus

Mitochondria

Answer 8

The organelle that processes and delivers proteins

Bean shaped organelle that supplies energy to the cell

Question 9

Cell wall

Chloroplasts

Vacuole

Answer 9

Found in plant cells. It is a rigid layer that surrounds the cell membrane and gives protection, support and shape to the cell

Organelles that carry out photosynthesis

A fluid- filled sac that stores materials needed by plant cells

Question 10

Prokaryotic Cells

Eukaryotic Cells

Answer 10

Do not have a nucleus or organelles. Are usually found in single- celled organisms

Have a nucleus and organelles

Question 11

Nucleolus

Answer 11

A small organelle inside the nucleus. It is responsible for making ribosomes