Biology Practice Question and Answer
8 Q: Endospermic seeds are found in ________.
1292 05f06df288e44862142996fbf
5f06df288e44862142996fbf- 1Gourdfalse
- 2Pisum sativumfalse
- 3Carica Papayatrue
- 4Dolichols lablabfalse
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Answer : 3. "Carica Papaya "
Q: What is a single celled organism called 1205 05b5cc604e4d2b4197774b4a8
5b5cc604e4d2b4197774b4a8- 1protoctistsfalse
- 2chromosomesfalse
- 3unicellulartrue
- 4bicellularfalse
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Answer : 3. "unicellular"
Explanation :
Answer: C) unicellular Explanation: An organism is a living thing, and there are two broad categories of organisms: those made up of only a single cell, and those made up of multiple cells. Single-celled organisms means which contains only one cell are called unicellular organisms. 'Uni-' means 'one,' so the name 'unicellular' literally means 'one cell.' Examples of Unicellular or Single celled organisms :: Prokaryotic organisms like Bacteria,... Some algae like green algae, euglena,...
Q: Cartilage is not found in which of the following?
2115 05ee83b36642b74661722674b
5ee83b36642b74661722674b- 1in the nosefalse
- 2In the gorgefalse
- 3in kidneytrue
- 4in the earfalse
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Answer : 3. "in kidney"
Explanation :
Cartilage is not found in:
(C) in the kidney
Explanation:
Cartilage is a connective tissue that is flexible and provides support to various structures in the body. However, it is not found in the kidney. The kidney primarily consists of renal tissue, blood vessels, and other specialized structures involved in the filtration of blood and the formation of urine. Cartilage is commonly found in areas such as the nose, ears, joints, and certain respiratory structures, but it is not a component of the kidney.
Q: Which of the following is true of kinetochores? 3678 05b5cc5ffe4d2b4197774b3f4
5b5cc5ffe4d2b4197774b3f4- 1They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.false
- 2They are the sites at which microtubules attach to chromosomes.true
- 3They are located at the center of the centrosome and organize tubulin into spindle fibers.false
- 4They cross at the cell's equator and move against each other, causing the cell to elongate.false
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Answer : 2. "They are the sites at which microtubules attach to chromosomes."
Explanation :
Answer: B) They are the sites at which microtubules attach to chromosomes. Explanation: They are the sites at which microtubules attach to chromosomes.
Q: What process immediately preceeded protein synthesis at the ribosome? 1767 05b5cc5ffe4d2b4197774b417
5b5cc5ffe4d2b4197774b417- 1transcriptiontrue
- 2replicationfalse
- 3translationfalse
- 4duplicationfalse
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Answer : 1. "transcription"
Explanation :
Answer: A) transcription Explanation: Protein synthesis at the ribosome is immediately preceeded by the transcription process.
Q: In what organelle does cellular respiration take place? 1253 05b5cc604e4d2b4197774b4f8
5b5cc604e4d2b4197774b4f8- 1Cytoplasmfalse
- 2Ribosomesfalse
- 3Mitochondriatrue
- 4None of the abovefalse
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Answer : 3. "Mitochondria"
Explanation :
Answer: C) Mitochondria Explanation: Cellular respiration is the multi-step process that creates energy from nutrients and food molecules. It begins in the cytoplasm of the cell, with the mitochondria functioning as the main organelle where the rest of the process continues and finishes. During respiration, glycolysis occurs in the cytoplasm of the cell.
Q: It causes clotting of blood –
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5ee35cfb55d51a0f6482c48f- 1Thrombintrue
- 2Hemoglobinfalse
- 3Pectinfalse
- 4All of the abovefalse
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Answer : 1. "Thrombin "
Explanation :
The substance that causes the clotting of blood is:
(A) Thrombin
Thrombin is an enzyme that plays a crucial role in the blood clotting process. It is responsible for converting fibrinogen, a soluble plasma protein, into insoluble fibrin threads. These fibrin threads form a mesh that helps in the clotting of blood, particularly at the site of injury or wound. Therefore, option (A) Thrombin is the correct answer.
Q: How many types of lavaks are based on color?
4816 05ee83c6e642b74661722686c
5ee83c6e642b74661722686c- 12false
- 23true
- 34false
- 45false
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