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(a) Catalase;
(b) Hydrogen peroxide produced in aerobic respiration highly toxic; and must be broken into harmless substances, water and oxygen;
sharon kalunda answered the question on May 28, 2019 at 08:49
- Give a reason why lumbar vertebrae have long and broad transverse processes.(Solved)
Give a reason why lumbar vertebrae have long and broad transverse processes.
Date posted: May 28, 2019. Answers (1)
- Distinguish between homozygote and heterozygote.(Solved)
Distinguish between homozygote and heterozygote.
Date posted: May 28, 2019. Answers (1)
- A certain plant had the following characteristics:
- Presence of roots, stem and leaves.
- Found with sori on the under surface.
- Life cycle in sporophyte and...(Solved)
A certain plant had the following characteristics:
- Presence of roots, stem and leaves.
- Found with sori on the under surface.
- Life cycle in sporophyte and gametophyte generations.
- Sporophyte generation being dominant.
Name the division to which the plant belongs.
Date posted: May 28, 2019. Answers (1)
- Name the kingdom into which the prokaryotes are placed.(Solved)
Name the kingdom into which the prokaryotes are placed.
Date posted: May 28, 2019. Answers (1)
- In an experiment young potted seedlings were placed in a dark box with unilateral light source as shown below.
(a) What was the aim of the...(Solved)
In an experiment young potted seedlings were placed in a dark box with unilateral light source as shown below.
(a) What was the aim of the experiment?.
(b) State the observation made of on the seedling after 3 days.
Date posted: May 28, 2019. Answers (1)
- Which component of the blood gives the body immunity?(Solved)
Which component of the blood gives the body immunity?
Date posted: May 28, 2019. Answers (1)
- State the kidney disorder characterized by production of large volume dilute urine.(Solved)
State the kidney disorder characterized by production of large volume dilute urine.
Date posted: May 28, 2019. Answers (1)
- Explain the role of antidiuretic hormone when there is excess water in the human body.(Solved)
Explain the role of antidiuretic hormone when there is excess water in the human body.
Date posted: May 28, 2019. Answers (1)
- Give one way in which pteridophyta differ from spermatophyta.(Solved)
Give one way in which pteridophyta differ from spermatophyta.
Date posted: May 28, 2019. Answers (1)
- Give a reason why it is difficult to calculate Respiratory Quotient (RQ) in plants.(Solved)
Give a reason why it is difficult to calculate Respiratory Quotient (RQ) in plants.
Date posted: May 28, 2019. Answers (1)
- Name two genetic disorders of the blood.(Solved)
Name two genetic disorders of the blood.
Date posted: May 28, 2019. Answers (1)
- Study the diagram and answer the questions that follow
(a) In which set-up did the lime water become turbid?.
(b) Explain your answer in (a) above.(Solved)
Study the diagram and answer the questions that follow
(a) In which set-up did the lime water become turbid?.
(b) Explain your answer in (a) above.
Date posted: May 28, 2019. Answers (1)
- The following set up was used in an experiment
(a) State the function of the following in the set –up.
i). damp cotton wool
ii) Silica gel.
iii) Wax.
b)...(Solved)
The following set up was used in an experiment
(a) State the function of the following in the set –up.
i). damp cotton wool
ii) Silica gel.
iii) Wax.
b) Deduce the condition that must be present in a termite habitat
Date posted: May 28, 2019. Answers (1)
- A student set up an experiment as shown in the diagram below.
a) (i) What was being investigated in the experiment?.
(ii) Draw a diagram to indicate...(Solved)
A student set up an experiment as shown in the diagram below.
a) (i) What was being investigated in the experiment?.
(ii) Draw a diagram to indicate the expected results of the experiment after three days.
(iii) Why was it necessary to have wet cotton wool in the container.
b) What is the role of the following in a germinating seed.
(i) Oxygen
(ii) Cotyledons
Date posted: May 28, 2019. Answers (1)
- The diagram below represents a specialized plant structure
(a) Name the cells labelled A and B
(b) Describe the mechanism of closing of aperture C(Solved)
The diagram below represents a specialized plant structure
(a) Name the cells labelled A and B
(b) Describe the mechanism of closing of aperture C
Date posted: May 28, 2019. Answers (1)
- How is a palisade cell suited to carry out photosynthesis?(Solved)
How is a palisade cell suited to carry out photosynthesis?
Date posted: May 28, 2019. Answers (1)
- Describe how natural selection results to speciation(Solved)
Describe how natural selection results to speciation
Date posted: May 28, 2019. Answers (1)
- Describe the response of hair on the skin during cold weather(Solved)
Describe the response of hair on the skin during cold weather
Date posted: May 28, 2019. Answers (1)
- Name any two receptor cells on the skin of man(Solved)
Name any two receptor cells on the skin of man
Date posted: May 28, 2019. Answers (1)
- Name the structures in the following organisms that would insulate heat loss
(i) Birds
(ii) Mammals(Solved)
Name the structures in the following organisms that would insulate heat loss
(i) Birds
(ii) Mammals
Date posted: May 28, 2019. Answers (1)