Quiz 2 Assessment 1 L1 20201

Which of the following is a structural polysaccharide?

• Cellulose

• Glycolipid

• Starch

• Glycolipid

Which of the following statement about a deoxyribonucleic acid molecule Is FALSE?

• it consists of two strands which are antiparallel to one another

• its sugar unit is deoxyribose which has a hydroxyl group on the second carbon

• it contains the bases adenine, guanine, thymine & cytosine

• it contains genetic information in its nucleotides

Under the hot sun, water in the pool is not so hot as compared to that of the environment. this is because water has a

• High heat capacity

• High latent heat of fusion

• High surface tension

• High latent heat of vaporisation

Which of the following is NOT TRUE about fat

• It is soluble in water.

• It produces water when respired.

• It provides energy.

• It acts as energy storage.

A peptide bond is formed between

• an aldehyde group and an amino group

• an aldehyde group and a carboxyl group

• an aldehyde group and a carboxyl group

• a carboxyl group and an amino group

Which of the following structures in humans can stratified epithelium be found?

• epidermal layer in the skin

• inner layer of the small intestine

• alveolus

• blood capillaries

Which of the following is the function of the Harversian canal in the bone?

• production of blood cells

• The flow of calcium and potassium ions

• transportation of excretory substances

• passage for blood vessels and nerves

Which of the following statements is TRUE of a sclerenchyma cell?

• The cell can retain the ability to divide and differentiate into other types of plant cells

• the mature cell exists in the region of the plant that has stopped growing in length

• the mature cell has primary wall that is relatively thin and flexible with most of the cells lacking secondary cell walls

• the mature cell has primary wall that is relatively thick and flexible with most of the cells lacking secondary cell walls

The absence of nucleoli causes cells to die because they do not posseess

• chloroplasts and are unable to undergo photosynthesis

• mitochondria and are unable to obtain energy

• ribosomes and are unable to manufacture proteins

• Golgi apparatus and are unable to obtain energy

Which of the following characteristics is NOT that of hyaline cartilage or compact bone?

• to bind with connective tissues

• their cells are chondroblas and osteoblas respectively

• to withstand compression

• their cells produce matrix substances