Advertisements
Advertisements
Question
Which of the following is an incorrect statement?
Options
Organisms grow with time
Organisms must repair and maintain their structure
Movement of molecules does not take place among cells
Energy is essential for life processes
Advertisements
Solution
Movement of molecules does not take place among cells
Explanation -
The movement of molecule is a vital process. Movement of molecules in cells take place in active and passive modes such as Diffusion, osmosis, facilitated diffusion etc.
APPEARS IN
RELATED QUESTIONS
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction − upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.

- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
Name the areas in a woody stem through which respiratory exchange of gases takes place.
What is the name of the extensions of the epidermal cells of a root which help in respiration?
The trachea divides into tow tubes at its lower end. What is the name of these tubes?
During respiration, the plants take CO2 and release O2.
What is the function of the respiratory system?
Why do the walls of trachea not collapse when there is less air in it?
Describe the exchange of gases which takes place in the leaves of a plant
(a) during daytime, and (b) at night.
"Respiration is a vital function of the body". Justify this statements.
The breathing and respiration in woody stem of a plant takes place through:
Differentiate between
External respiration and Internal respiration
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
Answer the following question.
How is O2 and CO2 transported in human beings?
______ refers to the physical process by which gaseous exchange takes place between the atmosphere and the lungs.
Match the correct answers with the type of respiration and respiratory substances.
| Respiration | Types of Substrates |
| A. Floating respiration | I. Proteins |
| B. Cytoplasmic respiration | II. Glucose |
| C. Protoplasmic respiration | III. Carbohydrates and fats |
List the similarities between aerobic and anaerobic respiration.
