Getting to Know Plants quiz

Plants with green and tender stems are called:

The flat, broad part of a leaf is the:

Grass has:

Leaves of grass have:

The male part of a flower is the:

The process by which leaves lose water vapour is:

Ovules are found in the:

Which of these is a climber?

Leaves make food in the presence of:

Which part of the plant conducts water from roots to leaves?

Name the parts of a stamen and a pistil. (2 marks)

Give two functions of roots. (2 marks)

What is the function of the petiole? (2 marks)

Why are leaves called the food factories of plants? (2 marks)

How are sepals different from petals? (2 marks)

Why do climbers need support? (2 marks)

Name two plants with taproots and two with fibrous roots. (2 marks)

Why does a plant wilt when its roots are damaged? (2 marks)

How can you show that leaves release water vapour? (2 marks)

Name two shrubs found in your neighbourhood. (2 marks)

In a garden survey, students counted 12 herbs, 8 shrubs and 5 trees. Find the total number of plants and the fraction that are shrubs. What percentage are trees? (3 marks)

A china rose flower has 5 sepals and 5 petals. A student examined 6 such flowers. How many sepals and petals did she count in all? (3 marks)

In an experiment, coloured water rose 3 cm up a balsam stem in 1 hour. How far would it rise in 4 hours at the same rate? If the stem is 15 cm long, how long would it take to reach the top? (3 marks)

A tree loses about 200 litres of water a day by transpiration. How much water does it lose in a week and in a 30-day month? (3 marks)

A student collected 20 leaves. 13 had reticulate venation and the rest had parallel venation. How many had parallel venation? How many of these plants are likely to have fibrous roots? (3 marks)

Read the passage and answer the questions. Riya tied a polythene bag over a leafy branch of a potted plant and kept it in sunlight. She tied another bag over a branch without leaves. After a few hours, the first bag had water droplets inside while the second did not. (i) Where did the water droplets come from? (ii) Name the process. (iii) Why was the bag on the leafless branch used? (5 marks)

Read the passage and answer the questions. In a school garden, students observed a mango tree, a rose plant, a tomato plant, a money plant climbing a wall and a pumpkin spreading on the ground. (i) Classify the mango, rose and tomato as tree, shrub or herb. (ii) Which is a climber and which is a creeper? (iii) Why can creepers not grow upright? (5 marks)

Read the passage and answer the questions. A student carefully uprooted a wheat plant and a mustard plant. The wheat plant had many thin roots of similar size, while the mustard plant had one main root with smaller roots branching from it. (i) Name the root types of the two plants. (ii) What venation will the wheat leaves have? (iii) What venation will the mustard leaves have? (5 marks)

Read the passage and answer the questions. Boojho cut a datura flower lengthwise and observed its parts with a magnifying lens. He found a structure in the centre that looked like a bottle with a swollen base. (i) What is this central structure called? (ii) Name its three parts. (iii) What did he find inside the swollen base? (5 marks)

Read the passage and answer the questions. Paheli kept a potted plant in a dark cupboard for a week. She watered it regularly. When she took it out, its leaves had turned yellow and pale. (i) Why did the leaves turn pale? (ii) Which process could not take place in the dark? (iii) What does this show about the role of sunlight? (5 marks)

Draw a labelled diagram of a plant showing the root, stem, branches, leaves, flower and fruit. Explain the main function of each part. (6 marks)

Describe an activity to show that the stem conducts water. Draw a labelled diagram of the setup and explain the observations. (6 marks)

Draw labelled diagrams of leaves with reticulate and parallel venation. Explain the relationship between leaf venation and root type with two examples each. (6 marks)

Draw a labelled diagram of a flower showing all its parts. Explain the role of sepals, petals, stamens and pistil. Describe how you would count the parts of a flower. (6 marks)

Explain photosynthesis and transpiration in leaves. Draw the polythene bag experiment for transpiration and write the word equation for photosynthesis. State why both processes are important for the plant. (6 marks)