Year 1 spec topic 2

Question 1

Name of this topic

Answer 1

Cells

Question 2

3.2.1.1 Eukaryotic cell structure

Answer 2

Eukaryotic Cell structure (animal, plant, fungi, algae)
cell-surface membrane, nucleus, mitochondria, chloroplasts, Golgi apparatus and Golgi vesicles, lysosomes, ribosomes, rough + smooth endoplasmic reticulum, cell wall, cell vacuole (in plants)
Specialising of cells based on adaptations, forming tissue, organs, organ system etc

Question 3

3.2.1.2

Answer 3

Prokaryotic cell structure and viruses structure only

Question 4

3.2.1.3

Answer 4

Methods of studying cells
Microscopes
Cell fractionation and ultracentrifugation

Question 5

3.2.2 All cells arise from other cells

Answer 5

Mitosis: prophase, metaphase, anaphase, telophase
Binary fission of bacteria
Viral replication by host cells

Question 6

3.2.3 Transport over cell membranes

Answer 6

Fluid mosaic model of cell surface membrane
Transport: simple diffusion, facilitated diffusion, osmosis, active transport, co transport
What affects rate of transport

Question 7

3.2.4 Cell recognition and immune system

Answer 7

Antigens on surface allow detection of foreign objects by immune system
PHAGocytosis
T lymphocytes
Humoral response: release of antibodies, AA complex
Vaccines
HIV
ELISA test, medical diagnosis, drug delivery in body