Home
Class 12
BIOLOGY
State true(T) or false (F) and choose th...

State true(T) or false (F) and choose the correct option.
phosphorus is absorbed by the plants from the soil in the from of phosphate ions.
cystine and methionine are sulphur containin g amion acids.
iron is an important of ferredoxin.

A

T,F,T

B

F,T,F

C

T,T,T

D

F,F,F

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate each statement and determine whether it is true (T) or false (F). Then, we will choose the correct option based on our evaluations. ### Step-by-Step Solution: 1. **Evaluate the first statement:** - Statement: "Phosphorus is absorbed by the plants from the soil in the form of phosphate ions." - Explanation: Plants absorb phosphorus primarily in the form of phosphate ions (PO4^3-). This is a well-established fact in plant biology. - Conclusion: This statement is **True (T)**. 2. **Evaluate the second statement:** - Statement: "Cystine and methionine are sulphur-containing amino acids." - Explanation: Cystine (which is formed from cysteine) and methionine are indeed amino acids that contain sulfur in their structure. Cysteine contains a thiol (-SH) group, and methionine has a thioether group. - Conclusion: This statement is **True (T)**. 3. **Evaluate the third statement:** - Statement: "Iron is an important component of ferredoxin." - Explanation: Ferredoxin is an iron-sulfur protein that plays a crucial role in electron transfer in various metabolic processes. The name "ferredoxin" itself is derived from the Latin word "ferrum," meaning iron. - Conclusion: This statement is **True (T)**. ### Final Conclusion: All three statements are true. Therefore, the correct answer is that all statements are true (T).
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 16 ZOOLOGY

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|18 Videos

  • MOCK TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|20 Videos

Similar Questions

Explore conceptually related problems

select true (T) or false (F) for the following statements and choose the correct option. A. QB bacteriophage has RNA as genetic material.

State true(T) or false(F) to the given statements and select the correct option. ( a ) Annual rings are distinct in plants growing in temperate regions. ( b ) Lenticels occur in most woody trees and permit the exchange of gases. ( c ) Due to stelar secondary growth, central cylinder of wood surrounded by secondary phloem is formed. ( d ) The cells of endodermis opposite to protoxylem divide to give rise vascular cambium in dicot roots.

State true (T) or false (F) for the given statements and choose the correct option. Br (a) Seeds of Pinus cannot germinate properly without mycorrhizal associations br (b) During passive absorption of water by roots a positive pressure is developed in xylem.

Considering the inheritence of a disorder like colourblindness,state the given statements as True(T) or False(F) and choose the correct option (A)Both affected mother and father can never have an unaffected children, (B) Both affected parents(mother and father) can have affected male child but unaffected female child, (C) If a child has disorder,then his or her grandparents must have the trait if not the disorder, (D) A marriage between an affected female and an unaffected male can produce all unaffected children.

Read the following statements, state true (T) or false (F) for them and select the correct option. (a) Cleistogamous flowers prevent geitonogamy as well as xenogamy. (b) Double fertilisation occurs in all spermatophytes. (c) In pea family, the single cotyledon is called scutellum. (d) Seeds of castor and coconut retain a part of endosperm during embryo development.

Read the following statements and select the correct option: (a) Major reservoirs of phosphorus are phosphate rocks and fossil bone deposits laid down in the past geological ages. (b) During weathering of rocks, minute amounts of these phosphates dissolve in soil solution and are absorbed by the roots of the plants.

Identify the statements as true (T) or false (F) w.r.t secondary growth in root and choose the correct option. I. Vascular cambium is partially secondary in origin. II. Vascular cambium is formed as continuous and complete but wavy ring. III. Cork cambium arises from cortical cells.

Mark True (T) or False(F) for the following statements & choose the correct option. (A) Phycobiont partner of lichens synthesises food for its other partner, (B) Lichens do not grow in air polluted areas, (C) Animals store their food reserve in the form of glycogen or fat

Select true (T) and false (F) in following given statements and choose the correct option given below.(a) Receptors for cannabinoids are present on cardiovascular system of the body (b) Cocaine causes hallucinations in large dosage by stimulating CNS (c)Diacetylmorphinis commonly known as smack (d) Heroin is a CNS stimulant and increases body functions

State true (T) or false (F) to the given statements and select the correct option.(a) All tissue layers exterior to the vascular cambium constitute bark.(b) Root hypodermis is sclerenchymatous. (c) Ground tissue of leaves is called mesophyll.(d) Due to presence of casparian strips, endodermis is impervious to water.