Nucleus in cell

Q.

Who discovered the cell nucleus?

1. Robert Brown

2. Leeuwenhoek
3. Robert Swanson
4. Robert Hooke

Q. An organism without the nucleus lacks .

1. nucleoplasm
2. cytoplasm
3. plasma Membrane
4. ribosomes
5. DNA

Q. DIRECTIONS: The following questions have four choices (a), (b), (c) and (d) out of which only one is correct. You have to choose the correct alternative.

Which of the following is not the function of nucleus?

1. Makes gene which code for protein
2. Controls activities of a cell
3. Nucleoids are present in prokaryotes
4. Formation of carbohydrates

Q.

What is the role of the nuclear pore in the nucleus?

Q.

The term nucleus was given by ____________.

1. Leeuwenhock

2. Robert Hook

3. Fleming

4. Robert Brown

Q. Nucleolus is:

1. A rod-shaped structure in the cytoplasm near the nucleus.
2. A rounded structure found in cytoplasm near the nucleus.
3. A rounded structure inside the nucleus bearing rRNA.
4. A rod-shaped structure inside the nucleus.

Q. Identify A in the nucleus.
.

1. DNA
2. Ribosomes
3. Nuclear Pores
4. Vesicles

Q. Shreya set up an experiment to investigate the outcome when different cell parts of a plant leaf are removed. The result are recorded as shown in the table given.
$\begin{array}{cc}Cellparts& Outcomes\\ P& Thecellcouldnotfunctionproperlyanddied\\ Q& Boiledleafremainedthesamewheniodine\\ & solutionwasaddedtoit.\\ R& Thecellcouldnotcontrolthesubstances\\ & enteringandexitingit\\ S& Thecelllostitsregularshape\end{array}$
Which of the following best represents the cell parts P, Q, R and S?

1. $\begin{array}{ccccc}& P& Q& R& S\\ & Nucleus& Ribosome& Cellwall& Cytoplasm\end{array}$
2. $\begin{array}{ccccc}& P& Q& R& S\\ & Cytoplasm& Chloroplast& Nucleus& Cellmembrane\end{array}$
3. $\begin{array}{ccccc}& P& Q& R& S\\ & Nucleus& Chloroplast& Cellmembrane& Cellwall\end{array}$
4. $\begin{array}{ccccc}& P& Q& R& S\\ & Chloroplast& Nucleus& ER& Cellmembrane\end{array}$

Q.

1. Enucleate condition
2. Thick secondary walls
3. Pores on lateral walls
4. Presence of P-protein

Q. Which of the following structure is found inside the nucleus?

1. Mitochondria
2. Chloroplasts
3. Lysosomes
4. Nucleolus

Q. The cell nucleus was discovered by

1. Robert Hooke
2. De Duve
3. Virchow
4. Robert Brown

Q. is the genetic material of almost all the living organisms.

1. Protein
2. DNA
3. Lipid
4. Carbohydrate

Q. Where inside the cell would you find centrosomes?

1. Chlorophyll
2. Ribosomes
3. Cytoplasm
4. Nucleus

Q.

What is the role of nucleus in a cell?

1. It synthesises digestive enzymes

2. It regulates the entry and exit of materials in a cell

3. It contains the hereditary material

4. It helps in recycling cellular components

Q. Microtubules are absent in

1. Mitochondria
2. Centriole
3. Flagella
4. Spindle fibres