Which of these statements are true and which are false?

plants respire only during the night.
plants break down glucose and use it for metabolism.
energy is released during the process of respiration.
respiration is limited to human beings and animals.
animals cannot use carbon dioxide from the atmosphere. they utilize only oxygen.
the products of photosynthesis are the reactants of respiration.
plants do not need oxygen. they need only carbon dioxide.
water is used up in respiration, whereas it is given out as a by-product in photosynthesis.

Answer;

True statements;

Plants break down glucose and use it for metabolism.

Energy is released during the process of respiration.

Animals cannot use carbon dioxide from the atmosphere. They utilize only oxygen.

The products of photosynthesis are the reactants of respiration.

False statements;

Plants respire only during the night.

Respiration is limited to human beings and animals.

Plants do not need oxygen. They need only carbon dioxide.

Water is used up in respiration, whereas it is given out as a by-product in photosynthesis.

Explanation;

-Photosynthesis is the process by which plants make their own food using sunlight, carbon dioxide and water. Oxygen is given as a by product,

-Cellular respiration is the process by which organisms break down organic molecules such as glucose to produce energy and also release water and carbon dioxide as by products.

Therefore; the reactants of photosynthesis are also the products of cellular respiration. Cellular respiration takes place during the day and the night when energy is needed. Plants therefore need both carbon dioxide and oxygen.

c

explanation:

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'