Growth in Organisms Practice Questions

Name the process by which the number of cells in the developing embryo increases.

Name the process by which unspecialised cells become specialised cells, such as nerve cells.

A nurse monitors the growth of the baby at a clinic. Give one measurement, other than mass, that the nurse could record to monitor the baby's growth.

A boy aged 6 months has a length of $68.9$ cm. State the percentile this boy is on.

State the percentage of 6-month-old boys who are shorter than this boy.

A different boy aged 6 months has a length of $62.8$ cm. Explain what this tells the health visitor about his growth.

In region A the number of cells increases. Name the process taking place in region A.

In region B the cells become much longer. Name this process.

Explain how the changes to the cells in region B make the root grow longer.

Describe what is happening to the cells in region C.

Growth in plants is different from growth in animals. State two ways in which growth in plants differs from growth in animals.

Explain the importance of cell differentiation in the development of a multicellular organism.

Calculate the mean rate of growth of the seedlings between day 2 and day 8. Give the unit.

Give one other measurement, apart from height, that the student could take to show the growth of the seedlings.

Another student suggested that measuring the dry mass of the seedlings would be a better way of measuring growth. Explain why.

State the percentile Amira was on at birth.

Describe how Amira's growth changed between 4 months and 12 months. Use data from the table in your answer.

Amira's doctor decides that further checks are needed. Explain why the data in the table support this decision.