Question
All life owes its existence to chlorophyll. Give reason.
✓
Answer
Chlorophyll is the foundation site for the photosynthesis in green plants. The initiation of photosynthesis takes place when the chlorophyll molecule traps the light energy. The light energy is then converted into chemical energy in the form of glucose using carbon dioxide $\left( CO _2\right)$ from the atmosphere, and water $\left( H _2 O \right)$ from the soil. All other organisms, directly or indirectly depend on this food for their survival. The starting point of any food chain is always a plant. If green plants were to suddenly disappear, then so would virtually all life on Earth. Thus, we can say that all ife owes its existence to chlorophyll.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The diagram given below represents a section of the human heart. Answer the questions that follow:
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered as 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds 'LUBB' and 'DUBB'?
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered as 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds 'LUBB' and 'DUBB'?
Explain the Term: The Bowman’s capsule
Study the diagram given below and then answer the questions that follow:
(i) Name the parts labeled $1$ and $2$. State the function of each part.
(ii) State any one function of the amniotic fluid.
(iii) What is the role of the umbilical cord in the development of the fetus?
(iv) Name the part in the diagram which is endocrine in nature.
→(i) Name the parts labeled $1$ and $2$. State the function of each part.
(ii) State any one function of the amniotic fluid.
(iii) What is the role of the umbilical cord in the development of the fetus?
(iv) Name the part in the diagram which is endocrine in nature.
Give a labeled structure of ovum.
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
Draw a duplicated chromosome and label its parts.
Draw a duplicated chromosome and label its parts.
Differentiate between the following:
Auxins and Gibberellins
Auxins and Gibberellins
Given below is a structure of female reproductive system. Match the structures marked $A-d$ with their correct names:
→| FEMALE REPRODUCTIVE SYSTEM | NAMES |
 | (a) Ovary |
| (b) Vagina | |
| (c) Uterus | |
| (d) Oviduct |
The diagram alongside represents a section of a mammalian eye.
(i) Label the parts 1 to 5 of the diagram.
(ii) State the function of the parts labelled 4 and 5.
(iii) With the help of a diagram show the short sightedness.
(i) Label the parts 1 to 5 of the diagram.
(ii) State the function of the parts labelled 4 and 5.
(iii) With the help of a diagram show the short sightedness.
Give Reasons for the following:
Guard cells are small in size and are kidney-shaped in outline.
Guard cells are small in size and are kidney-shaped in outline.
Differentiate: Endocrine gland and Exocrine gland.