1
Growth in plants at root apex and shoot apex takes place by
1) basal meristem2) apical meristem3) intercalary meristem4) lateral meristem
2 Biological Classification
Some commonly found green algae are all except:
1) Volvox 2) Colletotrichum 3) Ulothrix 4) Chlamydomonas
Solution
Some commonly found green algae are: Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara. Colletotrichum is a member Deuteromycetes (fungi)
3
The most important centre for the formation of lymph isLiverSpleenPancreasKidney
4 Biological Classification
(1)The sum total of all chemical reactions occurring in our body is metabolism (2) Metabolic reactions cannot be demonstrated outside the body in cell free systems Regarding 1 and 2:
1) Both 1and 2 are incorrect 2) 1 is correct but 2 is incorrect 3) Both 1and 2 are correct 4) 1 is incorrect but 2 is correct
Metabolic reactions can be demonstrated in cell free system (In vitro reactions)
5 Plant Kingdom
Flowers which cannot be cut into two equal halves along any plane 1) Irregular and zygomorphic 2) Irregular and asymmetrical 3) Regular and asymmetrical 4) None of these.
6 Cell -The Unit of Life
The Gram negative bacteria detect and respond to chemical in their surrounding by
1) Lipopolysaccharide 2) Muramic acid 3) Porins 4) Volutin granules
SOLUTION
When a decolourizer such as alcohol or acetone is added, it interacts with the lipids of the cell membrane. A Gram-negative cell loses its outer lipopolysaccharide membrane and the inner peptidoglycan layer is left exposed. The crystal violet complexes are washed from the Gram-negative cell along with the outer membrane.
7 Digestion and Absorption
Milk protein is acted upon by a gastric enzyme 1. Caesin 2. Rennin 3. Pepsin 4. Caesinogen
8
Aerenchyma is found in1) xerophytes2) hydrophytes3) sciophytes4) lithophytes
9
A molecule of " Acetyl Co-enzyme-A" has carbon atoms numbering:
(1) 3 (2) 2 (3) 4 (4) 6
10
Vaginal bleeding in a new born female infant is due to
1) Trauma 2) Infection
3) Haemorrhagic disease 4) Estrogen withdrawal
Your Score:
