chapter1 Flashcards
1
Q
(b) State two features visible in Fig. 4.1 that identify the organelle shown as a chloroplast.
1. ……………………………………………………………………………….
2. ………………………………………………………………………… [2]
A
Starch grain
Grana/thylakoids/internal membrane
Typical chloroplast shape
5-10 micrometer
2
Q
(b) Describe the roles of centrioles in animal cells.
A
- nuclear division
- replicate before/after each division
- move to poles
- organize microtubules
- centre for growth of spindle fibers
- modified centrioles found elsewhere such as in cilia.
3
Q
The function of mitochondrion
A
Aerobic respiration ATP production Oxidative Phosphorylation Beta oxidation fat Urea cycle
4
Q
The function of centriole
A
Assemble microtubules to produce mitotic spindles.
5
Q
Rough endoplasmic reticulum
A
Protein synthesis
6
Q
Golgi apparatus
A
Processing/modification/packaging protein molecules
Glycosylation
Production of secretory vesicles
Production of vesicles
7
Q
Choloroplast
A
Photosynthesis
8
Q
(c) State one role of vacuoles in plant cells.
…………………………………………………………………… [1]
A
Store of cell sap Store of minerals, salts and sugar Push chloroplast to the edge of the cell Give turgidity Store of waste
