Bio

Question 1

4 cell theory factors

Answer 1

All living things are composed of cells.
The cell is the basic functional unit of life.
Cells arise only from preexisting cells./
Cells carry genetic information in the form of deoxyribonucleic acid (DNA). This genetic material is passed on from parent to daughter cell.

Question 2

Are viruses living organisms? why?

Answer 2

No, Viruses are small structures that contain genetic material but are unable to reproduce on their own. This violates the third and fourth tenets of the cell theory because virions can only replicate by invading other organisms and because they may use ribonucleic acid (RNA) as their genetic information.

Question 3

the importance of hydrogen peroxide to cellular function

Question 4

Identify the predominant proteins found in microfilaments, microtubules, and intermediate filaments

Question 5

Distinguish between the properties of different cytoskeletal structures

Question 6

Classify cell types as epithelial or connective tissue

Question 7

Recall the names and functions of cellular organelles:

Question 8

cytosol

Answer 8

allows for the diffusion of molecules throughout the cell

Question 9

nucleus

Answer 9

genetic material is encoded in deoxyribonucleic acid (DNA), which is organized into chromosomes

Question 10

Eukaryotic cells reproduce by ___ allowing for the formation of

Answer 10

mitosis, formation of two identical daughter cells

Question 11

nuclear membrane or envelope

Answer 11

a double membrane that maintains a nuclear environment separate and distinct from the cytoplasm. allow for the formation of hnRNA or “pre-mrna” and the formation of a peptide from mRNA

Question 12

Nuclear pores

Answer 12

Nuclear pores in the nuclear membrane allow selective two-way exchange of material between the cytoplasm and the nucleus.

Question 13

genes

Answer 13

The genetic material (DNA) contains coding regions

Question 14

nucleolus

Answer 14

ribosomal RNA (rRNA) is synthesized

Question 15

histones

Answer 15

Linear DNA is wound around organizing proteins

Question 16

chromosomes

Answer 16

linear strands

Question 17

Mitochondria or Mitochondrion

Answer 17

the power plants of the cell, in reference to their important metabolic functions, 2 layers inner and outer

Question 18

The outer mitochondria membrane

Answer 18

serves as a barrier between the cytosol and the inner environment of the mitochondrion.

Question 19

inner mitochondria membrane

Answer 19

arranged into numerous infoldings called cristae, contain the molecules and enzymes of the electron transport chain (ATP creation). The cristae are highly complex structures that increase the surface area available for electron transport chain enzymes.

Question 20

intermembrane space

Answer 20

The space between the inner and outer membranes

Question 21

mitochondrial matrix

Answer 21

the space inside the inner membrane is called the mitochondrial matrix