| 1 |
Ribosomes are constructed in the ______. |
- A. Endoplasmic reticulum
- B. Nucleoid
- C. Nucleolus
- D. Nuclear pore
|
| 2 |
Was the first person to observe single celled organism. |
- A. Robert Brown
- B. Leeuwenhoek
- C. Robert Hooke
- D. Dolland
|
| 3 |
Lignin is present in: |
- A. Primary wall
- B. Secondary wall
- C. None of above
|
| 4 |
Simple tissues have _______________ types. |
|
| 5 |
There are _______________ chromosomes in humans. |
|
| 6 |
Lysosomes were discovered by: |
- A. Rene de Duve
- B. Robert brown
- C. Schwaan
- D. Louls pastuer
|
| 7 |
Which of these materials is not a component of the plasma membrane? |
- A. Phosphorous
- B. Glycoproteins
- C. Proteins
- D. DNA
|
| 8 |
Plants cells have __________ and _______ which are not present in animal cells. |
- A. Nilochondria , Chloroplasts
- B. Cell membranes, Cell walls
- C. Chloroplasts , Nucleus
- D. Chloroplasts , Cell wall
|
| 9 |
Ribosomes are formed in : |
- A. Nucleus
- B. Cytoplasm
- C. Nucleolus
- D. All
|
| 10 |
In plants, _______________ conduct water. |
- A. Xylem
- B. Phloem
- C. Both
- D. None
|
