Instruments to Measure Plant Growth

Q.

How do you measure plant growth?

Q.

Auxanometer is used to measure

1. The growth in breadth of a plant organ

2. The growth in length of a plant organ

3. Population of the pests attacking a plant

4. Both (a) and (b)

Q. Growth is measured by a variety of parameters, except

1. dry weight
2. area
3. fresh weight
4. cell type

Q. Auxanometer is meant for measuring

1. respiratory activity
2. photosynthetic activity
3. growth activity
4. osmotic pressure

Q.

What is the best way to measure plant growth?

Q. Discuss the following statement "The plant growth is measureable" .

Q. Identify the instrument from the diagram given below.

1. Potometer
2. Arc auxanometer
3. Lever auxanometer
4. potentiometer

Q. Auxanometer is required for

1. Finding out rate of photosynthesis
2. Calculating rate of growth
3. Measuring rate of respiration
4. Studying rate of transpiration

Q. is used to measure the growth in length of a plant organ.

1. Auxanometer
2. Auxometer
3. Autometer
4. Auxinometer

Q. Which of the following instruments can be used to record plant growth by seconds?

1. Auxanometer
2. Arc indicator
3. Crescograph
4. Space marker disc

Q. How will you measure the rate of growth? Describe an instrument used to measure the increase in height of an angiospermic plant.

Q. Auxanometer is meant for

1. Growth activity
2. Photosynthetic activity
3. The amount of auxins
4. Respiratory activity

Q. Auxanometer is used to measure plant organ

1. Growth in length
2. Growth in breadth
3. Pest population
4. Both A and B

Q. Auxanometer is used to detect

1. plant movement
2. Indole acetic acid
3. transpiration
4. respiration

Q.

What are the different types of gauges?

Q. Auxanometer is used to measure

1. Growth in breadth
2. Pest population
3. Growth in length
4. Both A and B

Q. Auxanometer is used to measure ............

1. Length
2. Width
3. Depth
4. Growth

Q. Auxanometer is required for

1. Studying rate of transpiration
2. Measuring rate of respiration
3. Calculating rate of growth
4. Finding out rate of photosynthesis

Q. Auxanometer is meant for measuring .................. in plants

1. Respiratory activity
2. Photosynthetic activity
3. Growth activity
4. The amount of auxins

Q.

An instrument by which the growth rates of the stem is measured

1. Osmometer

2. Hydrometer

3. Potometer

4. Auxanometer

Q. Growth in length of a plant can be measured by .........................

1. Clinostat
2. Auxanometer
3. Manometer
4. Potometer

Q.

Growth can be measured in various ways, which of these can be used as parameters to measure growth?

1. Increase in cell number

2. Increase in cell size

3. Increase in length and weight

4. All of these

Q. Write the formula for measuring the actual growth in the length of a plant.

Q.

Identity the correct option related to the given figure.

1. Zones A, B, C and D have elongated most

2. Zones A, B are in meristematic phase

3. Zones E, F and G possess actively dividing cells

4. Zones A to G have cells in maturation phase

Q. Growth in length of a plant is measured with the help of

1. Manometer
2. Auxanometer
3. Potometer
4. Clinostat

Q. Auxanometer is meant for measuring the

1. growth
2. osmotic pressure
3. photosynthetic activity
4. respiratory activity

Q. Which of the following statements is/are incorrect about growth in plants?

Statement 1: The irreversible permanent increase in the dimension (e.g., length or volume or mass) of an organ, its part or an individual cell is called growth.
Statement 2: Growth occurs along with metabolic processes that occur at the expense of energy.
Statement 3: Swelling of a piece of wood can also be considered as growth in plants as it increases the size of wood.

1. All the statements are correct
2. Only statement 1 is incorrect
3. Only statement 2 is incorrect
4. Only statement 3 is incorrect

Q. An irreversible or permanent increase in size, mass or volume of a cell, organ or organism is called as ________.

1. growth
2. differentiation
3. dedifferentiation
4. development

Q. Auxanometer is meant for measuring

1. respiratory activity
2. osmotic pressure
3. photosynthetic activity
4. growth activity

Q. Read the following statements carefully and answer the correct one from codes given below:
I. Growth is a unidimensional, permanent and reversible change.
II. Growth is a unidimensional, permanent and irreversible change.
III. Growth is a poly-dimensional, permanent and irreversible change.
IV. Growth increases the dry weight of growing parts.

1. I and II are correct.
2. II and III are correct.
3. III and IV are correct.
4. All of the above.