Bio Ch 7

Question 1

Explain the functions of these parts of the cell: proteins,nucleiC acids, carbohydrates, plasma membrane

Answer 1

Proteins preform most of the cell’s functions,
Nuclei acids store, transmit, process information
Carts provide chemical energy, Carbon, identity
Plasma membranes are a permeable barrier.

Question 2

Difference between eukaryotes and prokaryotes

Answer 2

‘eukaryotic cells have a nucleus, prokaryotic cells don’t

Question 3

Organisms are divided into 3 broad domains called

Answer 3

Bacteria, archaea and eukarya

Question 4

The transmission electron microscope

Answer 4

Passes team of elections through thin sections of cells to visualize their internal structure

Question 5

A chromosome

Answer 5

Made up. of double-stranded DNA

Question 6

Nucleioid

Answer 6

A region where DNA is in a densecomposition

Question 7

Plasmids

Answer 7

Super coiled DNA molecules that contain genes but are independent from the chromosome

Question 8

Ribosomes

Answer 8

Synthesize proteins from information in RNA

Question 9

Specialized tasks of organelles

Answer 9

Storing calcium ions
Holding magnetite crystals
Concentrating enzymes

Question 10

Flagellum

Answer 10

Helps move the cell, either undulates in eukaryotes or rotates in prokaryotes

Question 11

Fimbria

Answer 11

Bacterial projection that helps cell stick to other cells/surfaces

Question 12

Organelles compartmentalize volume of a eukaryotic cell into many small bins becuase

Answer 12

Chemical reactions are more efficient ( everything is close together, enzymes can centralize)
Incompatible reactions can separate Easter

Question 13

Organelles compartmentalize volume of a eukaryotic cell into many small bins becuase

Answer 13

Chemical reactions are more efficient ( everything is close together, enzymes can centralize)
Incompatible reactions can separate Easter

Question 14

Prokaryote cells have chromosomes in _ while eukaryotic cells have chromosomes in~

Answer 14

Nucleoid region, nucleus