Praxis 5005 Science: Life Science
Exam Questions With 100% Verified
Answers
Cell Theory -
correct answer ✅1)all cells arise from preexisting cells
2)all living organisms are composed of 1 or more cells
3)Cells are the basic unit of structure and function
2 Types of Cells -
correct answer ✅1) Prokaryotes - single-celled called bacteria
2) Eukaryotes - many cells with membrane-bound nucleus
cell anatomy -
correct answer ✅1) cell membrane - door
2) nucleus - Control center (DNA)
3) Ribosome - production of protein; made by nucleolus
4) Endoplasmic Reticulum (ER) - transports proteins
5) Golgi Body- (folded membranes) -storage, packaging, and
distribution of protein
6) Mitochondria - Site of energy production
7) Lysosomes - Digestive enzymes
8-10) are unique to Plants
,Praxis 5005 Science: Life Science
Exam Questions With 100% Verified
Answers
8) Cell Wall- protective covering for the cell membrane
9) Chloroplasts - Photosynthesis occurs here
10) Central Vacuole - water storage spot for the cell
Cell membrane -
correct answer ✅good things in; waste out
Marker Proteins - serves as "address sign" for the cell
Endocytosis - Capture good things
Exocytosis- Release bad things
Nucleus -
correct answer ✅Located within cytoplasm and protected by lipid
bilayer membrane
Nucleoplasm- Surrounds, supports, and protects the genetic code
Chromatin- contains histones, proteins, and DNA double helix
Nucleolus- makes ribonsomal RNA
Ribosomes -
correct answer ✅2 Types: 1) Free 2) Attached
, Praxis 5005 Science: Life Science
Exam Questions With 100% Verified
Answers
Translation - process used to make protein
ER -
correct answer ✅2 Types: 1) Rough - attached to membrane lining
2) Smooth - not attached
Mitochondria -
correct answer ✅process by which cells harvest energy from food
in the form of ATP.
Cell Cycle - -
correct answer ✅3 STAGES: Interphase, mitosis, cytokinesis
Interphase (longest phase) -
correct answer ✅3 phases: 1) Growth(G1), Synthesis (makes DNA)
(S), 2nd Growth(G2)
Mitosis -
correct answer ✅Process by which the nucleus divides into two
indentical nuclei in preparation for cytokinesis; creates sex cells in
preparation for sexual reproduction.
Exam Questions With 100% Verified
Answers
Cell Theory -
correct answer ✅1)all cells arise from preexisting cells
2)all living organisms are composed of 1 or more cells
3)Cells are the basic unit of structure and function
2 Types of Cells -
correct answer ✅1) Prokaryotes - single-celled called bacteria
2) Eukaryotes - many cells with membrane-bound nucleus
cell anatomy -
correct answer ✅1) cell membrane - door
2) nucleus - Control center (DNA)
3) Ribosome - production of protein; made by nucleolus
4) Endoplasmic Reticulum (ER) - transports proteins
5) Golgi Body- (folded membranes) -storage, packaging, and
distribution of protein
6) Mitochondria - Site of energy production
7) Lysosomes - Digestive enzymes
8-10) are unique to Plants
,Praxis 5005 Science: Life Science
Exam Questions With 100% Verified
Answers
8) Cell Wall- protective covering for the cell membrane
9) Chloroplasts - Photosynthesis occurs here
10) Central Vacuole - water storage spot for the cell
Cell membrane -
correct answer ✅good things in; waste out
Marker Proteins - serves as "address sign" for the cell
Endocytosis - Capture good things
Exocytosis- Release bad things
Nucleus -
correct answer ✅Located within cytoplasm and protected by lipid
bilayer membrane
Nucleoplasm- Surrounds, supports, and protects the genetic code
Chromatin- contains histones, proteins, and DNA double helix
Nucleolus- makes ribonsomal RNA
Ribosomes -
correct answer ✅2 Types: 1) Free 2) Attached
, Praxis 5005 Science: Life Science
Exam Questions With 100% Verified
Answers
Translation - process used to make protein
ER -
correct answer ✅2 Types: 1) Rough - attached to membrane lining
2) Smooth - not attached
Mitochondria -
correct answer ✅process by which cells harvest energy from food
in the form of ATP.
Cell Cycle - -
correct answer ✅3 STAGES: Interphase, mitosis, cytokinesis
Interphase (longest phase) -
correct answer ✅3 phases: 1) Growth(G1), Synthesis (makes DNA)
(S), 2nd Growth(G2)
Mitosis -
correct answer ✅Process by which the nucleus divides into two
indentical nuclei in preparation for cytokinesis; creates sex cells in
preparation for sexual reproduction.
