Biology Vocabulary Practice 2.10.21

Biology Vocabulary Practice 2.10.21

Read the slides, watch the video, then answer the questions.

homeostasis

condition of optimal, steady functioning of the organ systems of the body

Multiple Choice

Review! How many cells does the human body have?

• 50,000

• 50 million

• 50 trillion

organelles

Why is Spiderman in a cave jail? I don't know! But he knows what organelles are:

Specialized sub-structures of the cell that serve a special function

cytoskeleton

Provides internal structure and mediates intracellular transport

mitochondria

produces energy (ATP)

the "power plants" of the cell

ribosomes

Manufactures proteins

Golgi Apparatus

Protein modification and export

Endoplasmic Reticulum (ER)

Transports materials between organelles

flagella and cillia

move the cell or move liquid past the cell

capsule

The capsule helps prokaryotes cling to each other and to various surfaces in their environment, and also helps prevent the cell from drying out

Cell membrane

Semi-permeable and selective barrier surrounding the cell

"the gatekeeper" of the cell

cell wall

Provides support and mechanical strength; prevents excess water uptake

The "security fence" of the cell

lysosome

Breaks down excess or worn out cell parts.

The "garbage trucks" of the cell.

vesicle

Store and transport materials within the cell

cytoplasm

holds the components of the cell and protects them from damage

chloroplast

Site of photosynthesis

nucleus

Stores genetic material (DNA), dictates what other organelles in the cell do.

The "city hall" of the cell.

vacuole

Store various molecules including enzymes, waste products of the cell, water, and even food material depending on the type of cell.

The "landfill" of the cell.

Now watch this amazing video to review

Did I mention it is amazing?

Multiple Choice

What is the main purpose of mitochondria?

• be the "gatekeeper" of the cell

• make energy (ATP)

• support the other parts of the cell

Multiple Choice

An organelle always has the same basic shape and size.

• True

• False

Multiple Choice

What does a nucleus do?

• breaks down excess or worn out cell parts

• delivers vesicles throughout the cell

• is the control center of the cell

Multiple Choice

Cells, cells, they're made of...

• jingle bells

• organelles

• funny smells

Multiple Choice

Vacuoles contain water.

• True

• False

Poll

in your opinion, the best organelle is...

• cell membrane

• mitochondria

• Golgi Apparatus

• vacuoles