Cells

Cells

Animal and Plant Cells

Objectives: By the end of the lesson students should be able to:

State the two basic types of cells. Identify 7 parts of a cell. State the functions of 7 cells parts.

Organelles

Tiny cell structures that carry out specific functions within the cell.

Cytoplasm

Jelly-like structure. Keeps all the organelles together in the cell. Where all chemical reactions take place.

Nucleus

'Brain' of the cell. Control all cell activities including reproducing new cells and repair worn out parts. Contains chromosomes that contains DNA.

Cell Wall

Layer of non living material that surrounds the cells of plants. Made up of cellulose.

Only in plant cells.

Gives plants it's shape. It helps protect and support the cell.

Cell Membrane

All cells have it. Partially permeable membrane surrounding cell. Controls movement of substance into and out of the cell.

Chloroplast

Only found in plant cells. Contains chlorophyll, that allows the cell to make its own food.

Vacuole

Storage of the cells: water, food, minerals, waste materials. Plants cells have one large vacuole (contains cell sap). Animal cells have many small and numerous vacuoles.

Multiple Choice

What controls what enters and leaves the cell?

• cell membrane

• cytoplasm

• nucleus

• cell wall

• chloroplast

Multiple Choice

What provides structure and support for the cell?

• cell membrane

• cytoplasm

• nucleus

• cell wall

• chloroplast

Multiple Choice

What is #3 in the diagram?

• vacuoles

• cell membrane

• chloroplast

• nucleus

Multiple Choice

What is #5 in the diagram?

• vacuoles

• cell membrane

• chloroplast

• nucleus

Multiple Choice

What is #6 in the diagram?

• nucleus

• cell wall

• cytoplasm

• mitochondrion

Multiple Choice

What is #7 in the diagram?

• vacuoles

• cell membrane

• chloroplast

• nucleus

Multiple Choice

What part of the cell job is storage ?

• Vacoule

• nucleus

• chloroplast

Multiple Choice

Name the jelly like structure that keep all organelles inside the cell.

• Cell wall

• Cytoplasm

• Ribosomes

• Vacuole

Multiple Choice

What is the role of the nucleus in a cell?

• converts glucose and oxygen in the form of energy

• surrounds the cell and contains cytoplasm

• controls what goes in and out of the cell

• contains DNA which controls the reactions inside the cell

Typical Cell Models

• Based on typical cell models, we can determine whether an unknown cell shares the same characteristics as a typical plant or animal cell.

• A new classification of living things was created for organisms that have characteristics of both plant and animal cells.

Multiple Choice

How are multicellular and unicellular organisms different?

• Multicellular organisms have more than one cell and are smaller than unicellular organisms

• Unicellular organisms have one cell and are smaller than multicellular organisms.

• Multicellular organisms have one cell and are larger than unicellular organisms.

• Unicellular organisms have more than one cell and are larger than multicellular organisms

Cells - Division of Labour

Division of labour is the breakdown of work into small and specific tasks for maximum efficiency.

Multiple Choice

What is the correct order of organization?

• cells->tissue->organs->organ systems-> organism

• tissue->cells->organs->organ systems-> organism

• organs->organ systems-> organism->cells->tissue

Multiple Choice

organ systems make up.....

• Tissues

• Organs

• Organ systems

• Organisms

Multiple Choice

This is a example of........

• an organ system

• cells

• organs

• tissues

Multiple Choice

Every organ is made up of two or more:

• Organ Systems

• Tissues

• Muscles

• Cells

Multiple Choice

A group of similar cells that work together, to perform a function, make up _____.

• An organism

• An organ system

• An organ

• A tissue

Multiple Choice

Organs are...

• groups of cells that together carry out a particular function.

• groups of tissues that together carry out a particular function.

• groups of body systems that make up an organism..

• unicellular.

Multiple Choice

Tissues are...

• groups of cells that together carry out a particular function.

• groups of organs that together carry out a particular function.

• the smallest functional units of all living things.

• only found in animals.

Multiple Choice

What is the term for a group of tissues working together to perform a job?

• organ

• organ system

• organelle

• organism