Question

ANSWER THE FOLLOWING QUESTIONS IN LONG :-

1. The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.

2. List the similarities and differences between aerobic and anaerobic respiration.

3. Describe the different methods of asexual reproduction. Give examples.​

Answer 1

Answer:

2. Similarities:

The similarities between aerobic and anaerobic respiration, is that they both use glucose as the starting molecule. This is called the substrate.

In addition, both aerobic and anaerobic respiration produce ATP, however, aerobic respiration produces a lot more ATP compared to anaerobic respiration.

Food is oxidized in both cases and energy is released.

Differences:

Aerobic respiration takes place in presence of oxygen; whereas anaerobic respiration takes place in absence of oxygen.

Carbon dioxide and water are the end products of aerobic respiration, while alcohol is the end product of anaerobic respiration.

Aerobic respiration releases more energy than anaerobic respiration.

Answer 2

Answer 1:-

Given:-

The reading by the odometer of the car 57321.0 k.m, and the time 08.30 AM.

To Find:-

The distance covered by the car at 8.50 a.m, when the distance has changed to 57336.0 km.

Answer:-

➣ Initial reading by the odometer of the car = 57321.0

➣ The time when the car starts

= 8.30 a.m

➣ The time when the car stops

= 8.50 a.m

➣ Final reading by the odometer of the car = 57336.0 km

➣ The time taken by the car between 8.30 a.m to 8.50 a.m

= 50 - 30 = 20 minutes

➣ Distance coverd by the car

= 57336.0 - 57321.0 = 15 km

So,

Speed in km/min:-

$Speed\ = \frac{Distance}{ Time }$

$Speed\ = \frac{15 \: km}{20 \: mins}$

$= 0.75 \: km /min$

Speed in km/h:-

$Speed \ = \frac{ Distance \: travelled}{Time}$

$Speed \ = \frac{15 \: km}{1/3 \: hr}$

$= 45 \: km/hr$

∴ The speed of the car in km/min

= 0.75 km/min

The speed of the car in km/h

= 45 km/h

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Answer 2:-

Similarities:-

• Both of them take place by the use of glucose.

• Both of them produce ATP (Adenosine triphosphate).

• Both of them break down in oder to release carbon dioxide.

• In both of them, food is broken down with the presence of oxygen.

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Answer 3:-

Different methods of asexual production are:-

Vegetative propagation:-

This is a type of asexual reproduction where new plants reproduce by roots, leaves, buds, etc.

Budding:-

In this process, a new individual from a bulb-like projection, the bud grows and gets detached from the parent to form a new individual and it is mostly observed in yeast.

Spore formation:-

These are asexual reproductive bodies. These are mainly covered with a very hard productive coat for uncomfortable conditions such as high temperature or humidity, so that they will be able to survive for a long time.

Fragmentation:-

This is a type of process when a new organism is developed by the fragments of the parents body.

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