Theory

CH13 - PHOTOSYNTHESIS

(a) Fig. 8.1 shows a scanning electron micrograph of a section through a leaf of the Christmas rose, *Helleborus niger*.[Image_1: Fig. 8.1]Name M and ...

2009 Summer

Theory

CH13 - PHOTOSYNTHESIS

(a) Fig. 8.1 shows the results from two experiments carried out to investigate the effect of light intensity and carbon dioxide concentration on the r...

2009 Winter

Theory

CH13 - PHOTOSYNTHESIS

(a) In Queensland, Australia, the effect of the water-holding capacity of soil on the yield of sorghum and wheat was investigated.• Four test plots ...

2009 Winter

Theory

CH13 - PHOTOSYNTHESIS

(a) In the majority of plants the leaf is the main photosynthetic organ. List four ways in which the structure of a dicotyledonous leaf is adapted for...

2009 Winter

Theory

CH13 - PHOTOSYNTHESIS

Fig. 4.1 is a photomicrograph of a transverse section through the leaf of a C4 plant.(a) (i) Identify structures J to L. J ..............................

2010 Summer

Theory

CH13 - PHOTOSYNTHESIS

(a) Explain how the palisade mesophyll cells of a leaf are adapted for photosynthesis. [8](b) Outline the light-independent stage of photosynthesis. [...

2010 Summer

Theory

CH13 - PHOTOSYNTHESIS

Cereal crops, such as sorghum and rice, are a major source of nutrients all over the world.(a) Explain why cereal crops are important components of ma...

2010 Summer

Theory

CH13 - PHOTOSYNTHESIS

(a) Describe the structure of photosystems and explain how a photosystem functions in cyclic photophosphorylation. [8] (b) Explain briefly how reduced...

2010 Summer

Theory

CH13 - PHOTOSYNTHESIS

Cereal crops, such as sorghum and rice, are a major source of nutrients all over the world.(a) Explain why cereal crops are important components of ma...

2010 Summer

Theory

CH13 - PHOTOSYNTHESIS

(a) Describe the structure of photosystems and explain how a photosystem functions in cyclic photophosphorylation. [8](b) Explain briefly how reduced ...

2010 Summer

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