6th and 7th grade science week of 11/4

1.What is a cell?

• smallest unit of life

• Robert Hooke

• "little boxes"

  1. cell -

  2. tissue -

  3. organ

  4. organism

2.Parts of a cell

• Nucleus= brain of the cell

• Cell membrane= skin of the cell

• Organelles = everything inside the cell

• cytoplasm

• Mitochrondria

4. Plant Cells

• Large Vacuoles- remove waste.

• Has cell wall and membrane

• Chloroplasts make energy from sun

Multiple Choice

Plant cells have a cell wall AND a cell membrane.

• True

• False

How plant cell chloroplasts make energy from sun

The World of Plant Cells

• CELL WALL - provides support
• CHLOROPLASTS - responsible for photosynthesis
• CENTRAL VACUOLE - stores water
• Has all the other features found in animal cells
• DNA contains instructions to build proteins
• Instructions are sent to ribosomes for protein synthesis

Cytoplasm

Fluid fill are of the cell that holds the organelles

Nucleus

The “control center” of the cell/contains the genetic material for the cell: DNA

Large Central Vacuole

Storage center for  water  and waste that helps giving plants cell structure

Chloroplasts

Site of photosynthesis in the plant cell (where food is made)

Mitochondrion

Site of cellular respiration in the plant cell (was food is used for energy)

Multiple Choice

What type of cell make it own food?

• Animal Cell

• Plant Cell

Multiple Choice

What is the role of the nucleus in plant cells?

• Where chemical reactions happen

• Controls the cell

• Carry out photosynthesis

• Strengthen the cell

Multiple Choice

What is the role of the cell wall in plant cells?

• Where chemical reactions happen

• Controls the cell

• Carry out photosynthesis

• Strengthen the cell

Reproducing

​

• Cells reproduce by dividing in half.

• When building a new cell, plans are needed to tell the cell what to build.

• Plans for the cell are called DNA.

• DNA is stored in the nucleus.

Multiple Choice

Cells reproduce by ____.

• Giving birth

• Making seeds

• Dividing in half

• Laying eggs

Multiple Choice

This organelle stores DNA.

• Nucleus

• Nauseous

• Neutral

Multiple Choice

Nucleus is...

• the brain of the cell

• the skin of the cell

• Human brain

• the thing that make energy for the cell

Multiple Choice

Chloroplasts..

• Make energy

• Destroy energy

• Store nutrients

• Store water