SINDH MDCAT 2015 PAPER

1. The statement are all descriptions of cell structures.

1. Surrounded by a single membrane and enclosing a large fluid-filled space

2. surrounded by a single membrane and enclosing digestive enzymes

3. formed by two membranes enclosing a matrix. the inner membrane is folded

4. formed by a membrane that has flattened sacs and tubular structures inter-connected throughout the cell

5. formed of nucleic acid and protein

Which rows shows the typical cell in which these cell structures are found.

2. A short piece of DNA 30 base pairs long was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown below.

How many nucleotides containing guanine were present in strand 1

3. The diagram shows a simplified nitrogen cycle. During which stage does decomposition start

4. Antheridia and archegonia are _____ organs in bryophytes

5. Which of the following statements is true about savannah

6. Which diagram illustrates the process of active transport

7. The diagram shows part of flower after it has been pollinated.

Which row correctly identifies one of the labelled structure

8. The diagram shows some of the muscles and bones of human arm

When muscle X contracts, what happens to the arm and what happen to muscle Y

9. What happens to the volume of the thorax and the air pressure the lungs during breathing in

10. Dietary fiber passes through several structures after leaving the stomach. In which order does the dietary fiber pass through these structures