Explanation

(a) Diagram showing some organs of mammalian gut Title (T)

(b)(i) Two diseases of the liver:

• Liver cirrhosis
• Amoebic liver abscess
• Hepatitis
• Cancer/tumor of the liver
• Gall stones.

(b)(ii) Effects of liver diseases on humans:

(i) Weakness and tiredness

(ii) Jaundice/yel-lowish eye/skin

(iii) (Slight) fever

(iv) Oedema/ swollen abdomen/accumulation of fluid in the abdomen

(v) High blood pressure

(vi) Loss of weight

(vii) Abdominal pain

(viii) Loss of apetite

(ix) Headache

(c) Deficiency Symptoms Vitamin A:

• Night blindness /poor vision
• Colds/bronchitis
• Dry scaly skin.

Vitamin C:

• Swollen joints/scurvy/bleeding gums/sore mouth
• low resistance to infection
• dental disorders.

Vitamin K: - Excessive bleeding/haemorrhage of wounds/inability of blood to clot.

Correct Answer: A. interpretation

Correct Answer: A. his refusal to kill Saul

Correct Answer: A. frightening

Correct Answer: C. credible

Explanation

(a) -Infrastructure Deficiency: Insufficient infrastructure, including inadequate transportation networks, power shortages, and limited access to water and sanitation facilities, hampers industrial growth in developing countries. The lack of reliable infrastructure makes it challenging to establish and expand industries.

-Limited Access to Capital: Many developing countries face challenges in accessing capital for industrial development. Limited availability of loans, high interest rates, and lack of venture capital impede the growth of industries, especially for small and medium-sized enterprises (SMEs).

-Poor Governance and Corruption: Weak governance structures, widespread corruption, and bureaucratic inefficiencies create an unfavorable business environment. These issues lead to uncertainty, lack of transparency, and barriers to entry for industries, discouraging both domestic and foreign investments.

-Inadequate Skilled Workforce: Developing countries often face a shortage of skilled labor, particularly in specialized industries. Insufficient access to quality education and vocational training programs limit the availability of skilled workers required for industrial growth.

-Limited Technological Advancements: Many developing countries struggle to keep pace with technological advancements due to limited research and development capabilities, inadequate access to technology, and low adoption rates. The absence of technological innovation inhibits industrial growth and competitiveness.

-Weak Regulatory Frameworks: Inadequate regulations, cumbersome bureaucratic processes, and ambiguous legal frameworks pose significant challenges for industries in developing countries. Unclear property rights, weak intellectual property protection, and excessive red tape hinder investment and growth.

-Inadequate Market Integration: Insufficient integration into regional and global markets restricts the growth potential of industries in developing countries. Trade barriers, protectionist policies, and limited access to international markets limit export opportunities and hinder industrial expansion.

-Environmental Challenges: Developing countries often face environmental issues, including pollution, deforestation, and inadequate waste management systems. These challenges not only impact the well-being of the population but also pose obstacles to sustainable industrial development and investment.

(b) -Infrastructure Development: Investing in robust infrastructure, including transportation networks, power grids, and telecommunications systems, creates an enabling environment for industries to thrive. It improves connectivity, reduces logistics costs, and attracts investment.

-Access to Finance: Enhancing access to finance for small and medium-sized enterprises (SMEs) through microcredit schemes, venture capital funds, and government-backed loan programs enables entrepreneurs to start and expand businesses, driving industrial growth.

-Skill Development and Education: Investing in education and skill development programs ensures a competent workforce capable of meeting the demands of evolving industries. Vocational training, technical education, and entrepreneurship programs equip individuals with the necessary skills for employment and entrepreneurship.

-Regulatory Reforms: Implementing business-friendly policies, reducing bureaucratic hurdles, and streamlining regulations can attract investment and foster a favorable business climate. Simplifying licensing procedures, reducing red tape, and promoting ease of doing business encourages industry growth.

-Research and Development Support: Encouraging research and development activities by providing incentives, grants, and tax breaks stimulates innovation and technological advancements. Collaborations between industries, universities, and research institutions facilitate knowledge transfer and foster innovation-driven industries.

-Export Promotion: Supporting export-oriented industries through trade policies, market access initiatives, and export promotion agencies can enhance competitiveness in the global market. Providing export incentives, trade facilitation measures, and assistance with quality standards can boost industrial growth.

-Investment in Renewable Energy: Developing countries can promote the growth of industries by investing in renewable energy sources such as solar, wind, and hydroelectric power. This not only ensures sustainable industrial development but also reduces dependence on fossil fuels, mitigating environmental impacts.

-Strengthening Institutions: Building strong institutions and improving governance frameworks create a stable and transparent business environment. Enhancing transparency, combating corruption, and strengthening legal frameworks protect investments and promote industrial growth

Correct Answer: C. separate legal entities

Explanation

ai. %0 = 100 - (52.2+13.1)

=34.7

C H O

52.2/12, 13.1/1, 34.7/16

4.35, 13.1, 2.168

4.35/2.168, 13.1/2.168, 2.168/2.168

2.00, 6.04, 1

empirical formula = \(C_2H_6O\)

ii. 2 x vapour density = molecular mass

2x23=46

(\(C_2H_6O)_n\) = 46

[(12 x 2) + (1 x 6) + 16]n = 46

46n = 46

n = 1

molecular formula = \(C_2H_6O\)

iii1. Hydroxyl

iii2.

b. 2(\(C_6H_{10}O_5)_n + nH_2O --diatase→ nC_{12}H_{22}O_{11}\)

\(C_{12}H_{22}O_{11} + H_2O --maltase→ C_6H_{12}O_6 + C_6H_{12}O_6\)

\(C_6H_{12}O_6 --zymase→ 2C_2H_5OH + 2CO_2\)

ci. The reaction starts but the metal produces a layer of an oxide/aluminum oxide layer on its surface which is impermeable(to water) and stops the reaction.

ii. Add dilute hydrochloric acid to excess aluminum filter off the excess metal leave the filtrate in a warm place/evaporate the filtrate to the point of crystallization/leave it in the sun.

d. The flask is connected to the condenser and the solution is heated. The water vaporizes and is converted to(liquid)water in the condenser.

Correct Answer: D. hamper the growth of local varieties

Correct Answer: A) Platyhelminthes

Explanation

This question is asking about a group of animals called flatworms. Flatworms are a type of organism that have a flattened, worm-like body shape. They are often found in aquatic environments, such as rivers, streams, and oceans. The correct answer to this question is Option A, Platyhelminthes. Platyhelminthes is the scientific name for flatworms. These organisms are classified as part of the animal kingdom, and are further classified as bilateral animals, meaning that they have a distinct left and right side to their body. Annelida, Nematoda, Diplopoda, and Chilopoda are all different groups of organisms that are not flatworms. Annelida are segmented worms, Nematoda are roundworms, Diplopoda are millipedes, and Chilopoda are centipedes. It is important to understand the characteristics of different groups of animals in order to classify and understand them better. Flatworms, for example, have a simple nervous system and lack a circulatory system, which makes them different from other organisms like annelids, which have a more complex nervous system and a closed circulatory system. In conclusion, flatworms are a type of organism that have a flattened, worm-like body shape, and the correct answer to the question is Option A, Platyhelminthes.