Question

1. Which of the following cells will show maximum number of mitochondria?
a. Skeletal muscle fibres b. Monocyte
c. Hepatocytes
d. Adipocytes
2. In order to prevent formation of lactic acid, pyruvic acid should enter in
a. Mitochondrial matrix
b. Outer chamber of mitochondria
c. Crista
d. Oxysome
3. To observe cells in an onion peel, we use
a. Fruit
b. Stem
c. Leaf
d. Flower
4. The less stained central part of onion peel cell is
a. Nucleus
b. Cytoplasm
c. Vacuole
d. Cell wall
magnificatio
5. For observation of an onion pea cells are first seen under
a. 10X * 10X b. 10X 45X
c. 10X x 40X d. 10X * 100X​

Answer 1

Answer:

1)a. Skeletal muscle fibres

2)a. Mitochondrial Matrix

3)a. Fruit

4)b. Cytoplasm

5)a.10×10X...

Hpoe it is helpful for u...

Answer 2

Answer:

1 - Skeletal muscle fibres

2 - Mitochondrial matrix

3 - Fruit

4 - Cytoplasm

5 - 10X × 10X

Explanation:

1.) Skeletal muscles have a high ATP demand, which necessitates a large number of mitochondria.

• Muscle contraction is caused by repetitive "stepping" movements of the head of a molecule called myosin (purple in my diagram below), which binds and tugs on another protein called actin (red). It consumes one molecule of ATP for each "step" or "power stroke" it takes.
• 5 power strokes per second are produced by one myosin molecule.
• A single myosin molecule, on the other hand, would not cause any perceptible movement in a muscle.
• To have a useful effect, you'll need a lot of them.
• Thick myofilaments are bundles of myosin molecules.
• Each one is made up of hundreds of myosin molecules (usually 500).

2) An outer membrane, an inner membrane, and a gel-like material called the matrix to make up the mitochondrion.

• Because it contains less water, this matrix is more viscous than the cytoplasm of the cell.
• The mitochondrial matrix serves a variety of purposes.
• It is here that the citric acid cycle occurs.
• This is a crucial stage in cellular respiration, which results in the production of energy molecules known as ATP.
• In a structure known as a nucleoid, it stores mitochondrial DNA.
• A mitochondrion has its DNA and reproduces independently of the cell cycle of the host cell.
• It has ribosomes, which make proteins for the mitochondrion.
• It contains ion granules that appear to be involved in the mitochondrion's ionic balancing.

3) To observe the onion peel, fruit is used.

4) The less stained central part is the cytoplasm.

5) To observe the onion peel, they are seen under 10X × 10X. Each layer of an onion is separated by a thin skin or membrane. A wet mount on a microscope slide and use the high-power compound microscope to magnify the cells of the onion membrane.

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