Assessment 2

Sclerotome forms

• The skeletal muscles of the body

• The Vertebrate, ribs and parts of skull

• Urinary organ like kidney

• The dermis of the skin

All of the following are true about synapses except?

• Chemical synapses more common than electrical synapses

• Electrical synapses cause bidirectional, quick transmission that do not integrate information

• Chemical synapses use neurotransmitters & cause unidirectional transmission

• Presence of synaptic cleft & delay in chemical synapses

• Chemical synapses are always excitatory

Cell is the building block of any organism and this has been demonstrated by renowned scientist. Among the following who is the first one to recognize this?

• Louis Pasteur

• John Needham

• Robert Hooke

• Agostin Bassi

An immediate available energy source in muscle is:

• Oxidative phosphorylation

• Krebs cycle

• Glycolysis

• Creatine phosphate

All are elevation from the bone except

• Epicondyle

• Malleolus

• Protuberance

• Foramen

• None

Mycoplasma is different from other bacteria since it lacks an organelle that is found in other bacteria. Which organelle is lacking?

• Cell membrane

• Cell wall

• Chromosome

• Ribosome

Which one is common to Down syndrome, Turner syndrome and Patau Syndrome?

• Short stature

• Congenital heart disease

• Mental retardation

• Thick skin fold

The epiblast

• Is formed during the third week of development

• It forms the roof of the amniotic cavity

• It differentiates directly or indirectly in to ectoderm, mesoderm and endoderm

• It is the inner layer of cells in an early embryo.

Repetitive stimulation of a skeletal muscle fiber will cause an increase in contractile strength due to an increase in which of the following?

• The magnitude of the end-plate potential

• The number of muscle myofibrils generating tension

• The velocity of muscle contraction

• The concentration of calcium in the sarcoplasm

All happen during seventeen to twenty weeks of fetal period except

• Brown fat forms

• Quickening is commonly felt by the mother

• The skin is covered with vernix caseosa

• The secretory epithelial cells in the interalveolar walls of the lung have begun to secrete surfactant