Biology 9700/22 — May/June 2017
Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme
Topics Cell Structure · Biological Molecules · Nucleic Acids and Protein Synthesis · Immunity · Transport in Mammals · Enzymes · +5 more
Answer all the questions.
In multicellular organisms, the structure of different cell types is adapted to their function. Within these cells there are a number of different organelles, each with a particular function.
Table 1.1 contains information about the structure and function of five different types of cell. The table also includes, for each type of cell, one example of a cell organelle that is essential for the function to be carried out.
Complete Table 1.1.
Table 1.1
| type of cell | function of cell | example of organelle required to carry out function |
|---|---|---|
| palisade mesophyll | chloroplast | |
| Leydig | synthesis of steroid hormones | |
| production of secretory vesicles for release of antibody | Golgi body | |
| root hair cell | active uptake of mineral ions from the soil | |
| pancreas acinar | synthesis of enzymes |
A tissue is a collection of one or more types of cell, specialised to carry out a particular function.
An organ can be considered a structural unit within an organism that:
- consists of more than one type of tissue
- performs a particular function.
The aorta is the main artery of the body.
Explain, with reference to its structure and function, whether the aorta may be described as a tissue or an organ.
The rest of this paper
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- Q3Infectious Diseases · Cell Structure9M
- Q4The Mitotic Cell Cycle · Nucleic Acids and Protein Synthesis · Transport in Plants15M
- Q5Gas Exchange · Immunity · Cell Membranes and Transport11M
- Q6Biological Molecules · Immunity · Nucleic Acids and Protein Synthesis5M