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..............................

2009 Summer

MCQ

CH7 - TRANSPORT IN PLANTS

Which plan diagram of a transverse section of a leaf correctly shows the position of xylem and phloem as well as the fact that the palisade mesophyll ...

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

The diagram shows the changes in pressure potential ($\Psi_p$), solute potential ($\Psi_s$) and water potential ($\Psi$) when a plasmolysed plant cell...

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

What is the sequence of events in the translocation of assimilates?

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

When stained, which features, visible under the light microscope, are part of the cells of the plant tissues listed in the table?[Table_1]

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

What is the sequence of events in the translocation of assimilates?

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

Which description states some of the features of xylem vessels?

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

The diagram shows the changes in pressure potential ($\Psi_p$), solute potential ($\Psi_s$), and water potential ($\Psi$) when a plasmolysed plant cel...

2009 Winter

MCQ

CH7 - TRANSPORT IN PLANTS

When stained, which features, visible under the light microscope, are part of the cells of the plant tissues listed in the table? [Table_1]

2009 Winter

Theory

CH7 - TRANSPORT IN PLANTS

(a) Explain what is meant by the term transpiration......................................................................................................

2009 Winter

MCQ

CH1 - CELL STRUCTURE

Which of the cell organelles will be clearly visible under the high power (×400) of the light microscope? [Table_1]

2016 Summer

MCQ

CH1 - CELL STRUCTURE

The drawing from an electron micrograph shows a ciliated epithelial cell, magnified \times 1500, which is found in the trachea. Line X-Y shows the wid...

2016 Summer

MCQ

CH1 - CELL STRUCTURE

What are correct locations of ribosomes in the typical eukaryotic cell?1. free in the cytoplasm2. attached to the outside of the endoplasmic reticulum...

2016 Summer

MCQ

CH1 - CELL STRUCTURE

Visking tubing is an artificial partially permeable membrane used to demonstrate diffusion. Glucose molecules can pass through the pores in the membra...

2016 Summer

MCQ

CH1 - CELL STRUCTURE

What are found in both chloroplasts and typical prokaryotic cells?

2016 Summer

MCQ

CH2 - BIOLOGICAL MOLECULES

Two solutions, 1 and 2, one containing starch and sucrose, and the other containing glucose and protein, were tested with a variety of reagents to con...

2016 Summer

MCQ

CH2 - BIOLOGICAL MOLECULES

X and Y are two monomers found in biological polymers.[Image: Monomers X and Y]Which monomer is found in each of cellulose, glycogen, amylopectin and ...

2016 Summer

MCQ

CH2 - BIOLOGICAL MOLECULES

Chitin is a polysaccharide consisting of long straight chains of the monosaccharide acetylglucosamine, linked by 1,4 glycosidic bonds.Acetylglucosamin...

2016 Summer

MCQ

CH2 - BIOLOGICAL MOLECULES

Which statement about triglycerides is correct?

2016 Summer

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagrams show the structures of two amino acids, one of which has two amine (–NH₂) groups and the other has two carboxylic (–COOH) groups. ...

2016 Summer