This is a photograph of an organelle found in living cells U

This is a photograph of an organelle found in living cells. Use it to help answer questions 1, 2 and 3. (From Essential Cell Biology, Alberts Betal (2009) 3rd edition; Garland Science, NY & London. Photo by Daniel SFriend.) 1) What is the name of this organelle? D. O Chloroplast Endoplasmic Mitochondrion Ribosome reticulum 2 What is the function of this organelle? c, O D. O Anaerobic Aerobic Protein Photosynthesis respiration respiration release 3 Which one of the following substances is produced when this organelle is functioning Oxygen Carbon Glucose Starch dioxide

Solution

This is a photograph of an organelle found in living cell

1.Mitochondrion

2) What is the function of this organelle?

2. Aerobic respiration

The internal membrane folds several time s and makes layered structures called cristae. The liquid contained in the mitochondria is known as the grid. The collapsing of the internal film builds the surface range inside the organelle.

It is concerned with respiration.

It produces ATP during glycolysis , TCA cycle and electron transport

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3) Which one of the following substances is produced when this organelle is functioning.

3. Carbon dioxide

Explanation:

. Oxygen -. Oxygen is a product of photosynthesis.
Glucose - Glucose is made in chloroplasts during photosynthesis.

Starch Starch is made from glucose molecules in chloroplasts and other plants cells.

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4) Why is a root tip a good place to see this type of cell division?

It is an area of active growth

Explanation:

A. No light is present - Light does not directly affect cell division.

B. Plant roots only grow downwards -. Plants do have mechanisms that ensure roots grow downwards, but again, nothing to do with cell division.

D. Plants often store food reserves in roots They may increase cell numbers to store food but this division will be not as frequent as a root tip.

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5) The cell marked I on the diagram has 24 chromosomes.   How many chromosomes are present in the cell marked II?

24

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6) During the production of gametes the number of chromosomes is halved. What name is given to this type of cell division?

Meiosis

In this type cell division during gametogenesis

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What is the correct equation for photosynthesis

6CO₂ + 6H₂O C₆H₁₂O₆ + 6O₂

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8) Which two insects are homozygous?

III and VI

Both allele are similar

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9) What is the ratio of body colour in the offspring?

3 black: 1 white

Black is dominant and

F1 cross

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0) In genetics what term is given to the appearance of an organism?

Phenotype

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11) What is the name of the bone labelled I?

Humerus

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12) What is the type of muscle labelled II?

Striated

straited muscles : they are attached to bones , and also know as skeletal muscles

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Striated straited muscles : they are attached to bones , and also know as skeletal muscles