Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

Cell vacuole contains

  1. Water

  2. Metabolic gases

  3. Water and dissolved substances

  4. Cytoplasm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • A vacuole is a membrane-bound 9tonoplast) organelle present in cells.
  • It forms an enclosed compartment within the cell which are filled with water, dissolved inorganic and organic molecules (enzymes)
  • It stores food and variety of nutrients required by the cell to survive and also store waste products which protect the cell from getting contaminated.
  • So, the correct answer is 'Water and dissolved substances'.
Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

Beet root is coloured because of the presence of

  1. Anthocyanin in cytoplasm

  2. Anthocyanin in vacuole

  3. Anthocyanin in chromoplasts

  4. Carotenoids of chromoplasts
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Beet root is coloured because of the presence of anthocyanin in vacuoles .Anthocyanin is the water soluble vacuolar pigments ,they contain red colour in roots of the caryophyllales [including cactus, beet and amaranth ]these roots are contain red in colour.But otherwise anthocyanin in chloroplast and chromoplast have roots green in colour.Carotenoid of chloroplast contain orange colour pigments and they are found in carrots
So the correct option is B

Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

Cell sap is a

  1. Non-living fluid component of cytoplasm

  2. Living fluid component of cytoplasm

  3. Non-living fluid component of vacuole

  4. Living fluid component of vacuole
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A large central vacuole of a plant cell that stores water with inorganic and organic substance like sugar, salts and some pigments are the non-living fluid. It provides turgidity and osmolarity to the cell.

Multiple choice botany nucleus and chromosome membrane bound organelles cell: size and differentiation microscopy

Maximum arm ratio is found in

  1. Metacentric chromosome

  2. Acrocentric chromosome

  3. Telocentric chromosome

  4. Submetacentric chromosome
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The chromosomes were named according to the position of the centromeres. This is expressed in the ratio “long arm to short arm”. Here the following terms are used: metacentric (arm ratio 1.0–1.7), submetacentric (ratio 1.7–3.0), subtelocentric (ratio 3.0–7.0), acrocentric (ratio more than 7.0), and telocentric (chromosome with only one arm).

So, the correct answer is option B.

Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

Cell vacuole contains which of the following?

  1. Water

  2. Cytoplasm

  3. Dissolved substances

  4. Water and metabolic wastes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant cell vacuoles contain water and metabolic wastes. They are widely diverse in form, size, content and functional dynamics and a single cell may contain more than one kind of vacuole. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth. Thus, the correct answer is option D.

Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

What is a cell sap?

  1. Living contents of cell

  2. Non living contents of protoplasm

  3. Non living contents of vacuole

  4. Living content of cytoplasm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • A plant cell is characterized by a single large sap vacuole. They enclose sap or water or vacuolar fluid with dissolved inorganic and organic substances. It is surrounded by a membrane called tonoplast. 
  • Plant cell vacuole maintains osmotic pressure for turgidity and osmosis. They also store useful as well as waste orgastic substances. Plant vacuole along with the cell inclusions is the non-living component of the cell.
Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

..........  are enclosed compartments filled with water and organic molecules.

  1. Vacuoles

  2. Cytoplasm

  3. Nucleotides

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vacuoles are the membrane-bound organelle and perform various functions according to the type of cell in which they are present. Vacuoles are filled with water containing inorganic and organic molecules including enzymes in solution, though in certain cases they may contain solids which have been engulfed. The organelle has no basic shape or size, its structure varies according to the needs of the cell. 

Therefore, the correct answer is option A.

Multiple choice botany cell structure and organization membrane bound organelles cell: size and differentiation microscopy

In a plant cell, the vacuole contains which of the following?

  1. Water

  2. Organic substances only

  3. Inorganic substances only

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A plant cell is characterised by a single large sap vacuole. They enclose sap or water with dissolved inorganic and organic substances. It is surrounded by a membrane called as tonoplast. Plant cell vacuole maintains osmotic pressure for turgidity and osmosis. They also store useful as well as waste substances. Thus, the correct answer is option D.