MCQ

Nuclear Division: DNA Replication, Condensation and Chromosome Movement

During which stage of the mitotic cell cycle is DNA replicated?

2009 Winter

MCQ

Nuclear Division: DNA Replication, Condensation and Chromosome Movement

For organisms undergoing sexual reproduction, a reduction division occurs before fertilisation.Which reasons explain why this is necessary?1. increase...

2012 Summer

2

MCQ

Nuclear Division: DNA Replication, Condensation and Chromosome Movement

The cell cycle includes mitosis. Which are features of nuclear division? 1. forms cells of equal size to the parent cell 2. forms genetically identi...

2014 Summer

Theory

CH1 - CELL STRUCTURE

Fig. 1.1 shows the outline of a ciliated cell from the human gas exchange system.(a) (i) Inside the ciliated cell in Fig. 1.1, draw the nuclear envelo...

2009 Summer

6

Theory

CH18 - BIODIVERSITY, CLASSIFICATION AND CONSERVATION

(a) The table below gives some terms that are used in ecology and their definitions. Complete the table.termdefinitionecosystemall the organisms and t...

2009 Summer

2

Theory

CH4 - CELL MEMBRANES AND TRANSPORT

(a) With reference to Fig. 3.1 and the information above, explain how flatworms survive without a transport system for respiratory gases. ...............

2009 Summer

2

Theory

Mechanism of Enzyme Action

(a) With reference to Fig. 4.1, (i) name process A  molecule B  structure C  sequence of bases D  (ii) state two ways ...

2009 Summer

3

Theory

CH7 - TRANSPORT IN PLANTS

Fig. 5.1 shows part of a transverse section of a leaf.   (a) Explain, in terms of water potential, how water moves from Q to R. [4] (b)...

2009 Summer

2

Theory

CH5 - THE MITOTIC CELL CYCLE

(a) Fig. 6.1 is an electron micrograph of a cancer cell in the process of dividing by mitosis. The stage of mitosis visible in Fig. 6.1 is metaphase.S...

2009 Summer

3

Theory

CH1 - CELL STRUCTURE

Yeast cells contain enzymes, which catalyse the breakdown of glucose to produce ethanol and carbon dioxide. These products change the environment of t...

2009 Summer

2

Theory

CH1 - CELL STRUCTURE

J1 is a slide of a stained transverse section of a plant organ.(a) Draw a large, low power, plan diagram of a quarter of the specimen as shown in Fig....

2009 Summer

1

Theory

CH1 - CELL STRUCTURE

(a) (i) Using the information in Table 1.1, decide which other concentrations to make and complete Table 1.2 including the concentrations from Table 1...

2009 Summer

2

Theory

CH1 - CELL STRUCTURE

K1 is a slide of a stained transverse section of a plant organ.(a) (i) Draw a large, low power plan diagram of one end of the specimen on K1 as shown ...

2009 Summer

3