Fill Missing Words- Bio

Question 1

All skeletal muscles are striated and (…..). Cardiac muscle is striated and (…..). Skeletal muscle cells contain contractile filaments made of (…..) and (…..)

Answer 1

Voluntary
Involuntary
Actin
Myosin

Question 2

Pulmonary circulation begins form the (…..) ventricle while systematic circulation begins from (….) ventricle.
The semilunar valve in the mammalian heart are to be found at the places where blood leaves via the (….) and pulmonary (….).

Answer 2

Right
Left
Aorta
Arteries

Question 3

Producing a copy of the DNA gnee sequence is called (….). This copy is synthesised by an enzyme called (…..).
RNA is usually (….) stranded not (…) stranded like DNA.

Answer 3

Replication
RNA polymerase
Single
Double

Question 4

A nucleotide is composed of a sugar, phosphate and a nitrogen containing base. RNA are composed of the sugar (…), a phosphate and nitrogenous bases A, C, G and (…). For DNA nucleotides the sugar is (……) and the nitrogenous bases are A, C, G and (…).

Answer 4

Ribose
Deoxyribose
U
T

Question 5

Taste receptors are found along the surface of the tongue clustered together into taste buds. Thee are four primary taste sensations: (….), (….), (….) and (….). Each taste bud has sensitivity to one of these tastes.

Answer 5

Sour
Sweet
Salty
Bitterness

Question 6

Translation is the process that converts or translates an (…..) message into a polypeptide. One or more polypeptides make up a (…). The “language” of Nucleic acids uses four (…). The “language” of proteins on the other hand uses 20 (…)

Answer 6

mRNA
protein
Bases
Amino acids

Question 7

Transcription is the process of copying a sequence of (….) to produce a complement strand of (….). During the process of transcription a (….) - not an entire chromosome- is copied and the process is catalysed by (……), the enzymes that bind nucleotides together in a chain.

Answer 7

DNA
mRNA
template strand
RNA polymerase