Biology: Cells

Which is true about a compound light microscope?

• allow light to pass through the specimen

• shines a beam of electrons through the specimen

• use two lenses to form an image

• samples must be preserved/ dehydrated, cannot see live organisms

Which is true about Electron Light Microscopes?

• allow light to pass through the specimen

• shines a beam of electrons through/over the surface of the specimen

• use two lenses to form an image

• samples must be preserved/ dehydrated, cannot see live organisms

• can see really tiny stuff, super magnified

Match the following

• found thatall animals were made of cell

• Theodor Shwann

• found that all plants were made of cells

• Matthias Schleiden

• first person to see dead in cork

• Rudolph Virchow

• first to see living cells in pond water

• Leeuwenhoek

• all new cells come from other cells

• Robert Hooke

Match the following

• 1855

• Rudolph Virchow

• 1665

• Theodor Shwann

• 1838

• Leeuwenhoek

• 1674

• Matthias Schleiden

• 1839

• Robert Hooke

Which of the following scientists collaborated on the cell theory?

• Isaac Newton, Albert Einstein, and Marie Curie
• Charles Darwin, Gregor Mendel, and Louis Pasteur
• Matthias Schleiden, Theodor Schwann, and Rudolf Virchow
• Galileo Galilei, Nikola Tesla, and Thomas Edison

What is the smallest unit of life?

• molecule
• cell
• atom
• organism

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

What instrument allowed people to study cells?

• microscope
• magnifying glass
• binoculars
• telescope

Organize these options into the right categories

Groups:

(a) Traditional Cell Theory

,

(b) Modern Cell Theory

,

(c) Not true/Not part of Theories

• Activity of an organism depends on the activity of independent cells.

• Cells can be specialized.

• Energy flow occurs within the cell.

• Cells contain hereditary information which is passed from cell to cell during cell division.

• All living things have cells

• Cells are the basic unit of function in living things.

• Cells are the basic unit of structure in living things.

• Cells form tissues, which form organs, which from organ systems, which form organisms.

• Cells come from other cells.

• Homeostatis is controlled by the cell.

• Cells in organisms of similar species have the same chemical composition.

• Cells in organisms of the same species have similar cells.

• Cells contain specialized structures to perform necessary functions for life.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

All cells must maintain --------------- or a stable internal environment in order to survive.

Tags

NGSS.HS-LS1-3

Is the majority of life on Earth unicellular or multicellular?

• multicellular
• unicellular