Unit2: Classification

Multiple Choice

Which characteristic is common to all eukaryotic cells?

• Lack of organelles

• Presence of a membrane-bound nucleus

• Absence of cytoplasm

• Having chlorophyll

Multiple Choice

What is the main function of the nucleus in a cell?

• To control water levels

• To store food

• To control the activities of the cell and store inherited information

• To provide energy for movement

Multiple Choice

Which cell organelle is responsible for photosynthesis in plant cells?

• Nucleus

• Vacuole

• Mitochondria

• Chloroplast

Multiple Choice

What is the primary function of the cell wall in plant cells?

• To control what enters and exits the cell

• To perform photosynthesis

• To protect the inner parts of the cell

• To store nutrients

Multiple Choice

What type of microscope is most commonly used to view cells?

• Electron microscope

• Simple hand lens

• Compound microscope

• Infrared scanner

Multiple Choice

Which of the following statements is true about muscle cells?

• They store oxygen and have no nucleus

• They have bristles and segmented bodies

• They have many mitochondria and muscle fibers for movement

• They carry electrical impulses using dendrites

Multiple Choice

Which of the following is a feature of red blood cells?

• Contains a large nucleus

• Has many mitochondria

• Lacks a nucleus and has a large surface area

• Has cilia to sweep mucus

Multiple Choice

Which of these animal cell types is responsible for transmitting electrical impulses?

• Muscle cell

• Red blood cell

• Nerve cell

• Ciliated epithelial cell

Multiple Choice

What distinguishes a white blood cell from a red blood cell?

• White blood cells carry oxygen

• White blood cells have no nucleus

• White blood cells have a large nucleus and fight infection

• White blood cells perform photosynthesis

Multiple Choice

Which plant cell controls gas exchange by changing shape?

• Palisade cell

• Root hair cell

• Guard cell

• Spongy mesophyll cell

Multiple Choice

Which specialised plant cell is adapted for water absorption and has a large surface area?

• Xylem cell

• Guard cell

• Root hair cell

• Palisade cell

Multiple Choice

What is the main difference between vertebrates and invertebrates?

• Number of limbs

• Habitat

• Presence or absence of a backbone

• Size of the heart

Multiple Choice

Which invertebrate group is characterized by having jointed legs and a segmented body?

• Mollusca

• Annelida

• Arthropoda

• Nematoda

Multiple Choice

Which plant group lacks vascular tissues such as xylem and phloem?

• Ferns

• Mosses

• Conifers

• Flowering plants

Multiple Choice

What is a key feature of monocotyledonous plants?

• Two cotyledons

• Tap root system

• Leaves with branching veins

• Parallel leaf veins