Cell Organelles

Cells

Cell Structure and Functions

Multiple Choice

It stores the majority of the

genetic material and controls

cell activities.

• nucleolus

• nucleus

• mitochondria

• chromosomes

Nucleus

- discovered by Robert Brown

The Nucleus: Information Central

- It contains genetic material

DNA - Chromatin - Chromosomes

Chromatin in the Nucleus

•The thread-like material in the nucleus is called chromatin which is DNA wrapped around protein.

•Usually looks like this but as a cell prepares to divide, chromatin condenses to form chromosomes.

Open Ended

What’s the role of the pores?

Open Ended

Function of the Nucleus

Multiple Choice

Cells with nucleus are:

• Plants

• Animals

• Bacteria

• Both plants and animals

• All types of cells

Multiple Choice

A cell with relatively few energy needs will probably have a relatively small

• ribosomes

• lysosomes

• mitochondria

• chromosomes

Mitochondria: Powerhouse of the cell

• Cellular Respiration

• make ATP molecules that provides energy  for cell activities

• - metabolic function of the cell

   - Have their own DNA and own  ribosomes

Multiple Choice

Contains the green pigment chlorophyll which captures the sun’s energy and converts it into chemical energy:

• ribosomes

• chloroplast

• mitochondria

• vacuole

Chloroplast

- Found in plant cells

- Contains the green pigment chlorophyll which captures the sun’s energy and converts it into chemical energy (glucose) in a process called photosynthesis.

Multiple Choice

Which organelle has no membrane and makes proteins for the cells?

• vacuole

• lysosome

• ribosome

• chloroplast

Multiple Choice

Which of the following organelles transports materials inside the cell

• lysosome

• chloroplast

• mitochondria

• endoplasmic reticulum